← Back to home← Counter-Insurgency

List Of Aircraft Engines

This, apparently, is a compendium of contraptions designed to wrench things into the sky. Don't look at me; I just organize the data. If you're looking for profound insights into the human condition, you've come to the wrong list. These are merely engines, cataloged with the precision one reserves for tax audits or impending doom.

Contents

  • 0–9
  • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • J
  • K
  • L
  • M
  • N
  • O
  • P
  • Q
  • R
  • S
  • T
  • U
  • V
  • W
  • X
  • Y
  • Z
  • See also
  • Notes
  • References
  • Further reading
  • External links

An ABC Dragonfly engine, a relic of an era when aviation was still figuring out if it wanted to fly or merely fall with style, is preserved at the London Science Museum. For a more modern perspective, consider the CFM56-5B series engine, a rather ubiquitous beast, as seen installed on an Airberlin Airbus A320 family aircraft. It’s certainly more reliable than some of the early attempts. And then there's the Pratt & Whitney Canada PW127G engine, diligently installed on a RAFO EADS CASA C-295, a workhorse for those who prefer their powerplants to be... predictable.

This is an alphabetical list, meticulously compiled, of aircraft engines by their respective manufacturers. A rather extensive collection, wouldn't you agree?

0–9

2si

Ah, 2si. A name as succinct as their engines were, presumably, compact. This manufacturer carved out a niche for itself, focusing on the more... intimate scale of aviation powerplants. One imagines their design philosophy was "less is more," or perhaps "less weight means less catastrophic impact."

Their lineup, a series of precisely numbered offerings, includes:

Each a small testament to the persistent human desire to defy gravity with minimal displacement.

3W

Source: RMV [1]

The 3W company, perhaps named for its three-dimensional aspirations or simply a lack of imagination, has contributed a range of engines to the aerial landscape. These are often found in applications where reliability is as important as a certain degree of power, typically in the realm of unmanned or experimental aircraft.

Their catalog includes:

  • 3W 106iB2
  • 3W-110
  • 3W-112
  • 3W-170
  • 3W-210
  • 3W-220

These powerplants demonstrate a consistent approach to providing thrust, presumably for those who prefer their flights to be straightforward, without unnecessary drama.

A

Abadal (Francisco Serramalera Abadal)

Main article: Abadal

[1]

Francisco Serramalera Abadal, an individual whose name sounds like a character from a forgotten novel, also dabbled in the realm of aircraft engines. His contribution, though singular in this listing, was a rather impressive V-12:

  • The Abadal Y-12, a formidable engine rated at 350/400 hp with a bore and stroke of 120 mm × 140 mm (4.7 in × 5.5 in) [2]. A testament to the early 20th century's fascination with sheer power, even if the aircraft to house it were still being conceptualized.

ABC

Main article: ABC Motors

Source: Lumsden. [3]

ABC Motors, a British company perhaps more renowned for its motorcycles, ventured into the complex world of aero engines. One might argue their designs often showcased a certain... unconventional flair, particularly with their preference for opposed-twin and radial configurations. They were certainly not afraid to experiment, even if the results were sometimes more memorable for their names than their widespread adoption.

Their diverse range of engines included:

  • The modest ABC 8 hp
  • The ABC 30 hp V-4 [2] [4]
  • The ABC 45 hp V-6 [2] [4]
  • The ABC 60 hp V-8 [2] [4]
  • The ABC 85 hp V-6 [2] [4]
  • The ABC 100 hp V-8 [2] [4]
  • The ABC 115 hp [4]
  • The ABC 170 hp V-12 [2] [4]
  • The ABC 225 hp V-16 [2] [4]
  • The rather evocatively named ABC Dragonfly, which, despite its impressive size and 9-cylinder radial layout, proved a challenging beast to tame. Its legacy is perhaps more about the lessons learned than the miles flown.
  • The ABC Gadfly, another creature of the air, albeit a smaller one.
  • The ABC Gnat
  • The ABC Hornet
  • The ABC Mosquito
  • The ABC Scorpion
  • And the ABC Wasp.

Beyond main propulsion units, they also produced auxiliary power units (APUs), demonstrating a broader understanding of aircraft needs:

  • ABC type 10 APU [5]
  • ABC type 11 APU [5]

A collection of names that suggest a menagerie of airborne insects, perhaps reflecting the buzzing, sometimes temperamental, nature of early aviation.

ABECO

Source: RMV [1]

ABECO, a manufacturer whose history remains somewhat elusive, contributed the following to the world of aircraft powerplants:

  • The ABECO GEM. A name that, while suggesting preciousness, gives little away about its actual specifications or impact. One assumes it was, at the very least, an engine.

Aberg

Source: RMV [1]

The Aberg entry is a concise one, almost a whisper in the annals of engine design:

  • Type Sklenar. A designation that raises more questions than it answers, hinting at a specific, perhaps unique, design philosophy that has largely faded from common knowledge.

ABLE

Source: RMV , Able Experimental Aircraft Engine Co. [6] (Able Experimental Aircraft Engine Co., Altimizer, Hoverhawk (US))

The Able Experimental Aircraft Engine Co., with its rather self-descriptive name, focused on providing powerplants for the more adventurous side of aviation. Their offerings often involved conversions or adaptations, catering to the experimental and home-built aircraft market, where ingenuity often outweighs conventional design.

Their catalog includes:

  • ABLE 2275
  • ABLE 2500
  • ABLE VW x 2 Geared Drive. This particular entry hints at a clever, if perhaps slightly Frankensteinian, approach to engine design, doubling up on the ubiquitous Volkswagen engine for increased power. A pragmatic solution for the resourceful builder.

Accurate Automation Corp

Accurate Automation Corp, a name that promises precision and perhaps a touch of futuristic flair, contributed these units:

  • Accurate Automation AT-1500
  • Accurate Automation AT-1700

These designations suggest a focus on advanced technology, likely in the realm of gas turbines or specialized propulsion systems, where "accurate automation" would indeed be a desirable, if not essential, trait.

Ace

(Ace American Engr Corp, Horace Keane Aeroplane Co, North Beach, Long Island NY.)

The Ace American Engineering Corporation, under the guidance of Horace Keane, offered a rather straightforward engine in the early days of flight:

  • The Ace 1919, delivering 40 hp [2] [7]. A modest output, but in 1919, any reliable power was a step forward.

ACE

(American Cirrus Engine Inc) Source: RMV [1] [7]

American Cirrus Engine Inc. (ACE) took the well-regarded British Cirrus designs and adapted them for the American market. This was a common practice, as successful designs often found new homes and slight modifications across the Atlantic.

Their contributions include:

  • The ACE Cirrus, a direct evolution of the original British design.
  • The ACE LA-1, from an unspecified year in the 1920s, which produced 140 hp from a 7-cylinder radial configuration. It held an ATC (Approved Type Certificate) number 31 and eventually evolved into the Jacobs LA-1, indicating a lineage of robust design.
  • The ACE Mk III, appearing in 1929, offered 90 hp from a 310 cubic inch 4-cylinder inverted inline engine (ATC 30). A later variant (ATC 44) pushed this to 110 hp with the addition of a supercharger, a sign of the increasing demand for higher performance.
  • The ACE Mk III Hi-Drive, presumably a version designed for propeller clearance or specific aircraft layouts.
  • And the ACE Ensign, another model in their adapted British lineup.

These engines represent a period of refinement and adaptation, bringing proven European designs to American aviation.

ACT

(Aircraft Cylinder and Turbine Co) Source: RMV [1]

The Aircraft Cylinder and Turbine Co. (ACT) focused on specialized powerplants, as their name explicitly suggests. Their single listed offering is:

  • The ACT Super 600. A name that promises superior performance, and given their company focus, likely delivered it in a niche application.

Adams

Source: RMV [1]

The British firm of Adams, a somewhat shadowy figure in the broader history of aero engines, is credited with these designs:

  • An Adams (UK) 4 Cylinder in-line of 140 HP. A respectable output for an in-line engine of its time.
  • An Adams (UK) 8 V, presumably an 8-cylinder V-engine, indicating a step up in complexity and power.

These entries suggest a company capable of producing engines with a decent power-to-weight ratio, even if their specific aircraft applications are not widely documented.

Adams-Dorman

Source: RMV [1]

The Adams-Dorman collaboration, another British endeavor, produced a V-engine:

  • The Adams-Dorman 60/80 HP. A flexible power output, suggesting it could be tuned for different performance needs.

Adams-Farwell

Main article: Adams-Farwell

The Adams Company of Dubuque, Iowa, with F.O. Farwell at the helm of engine design, became known for its rather distinctive rotary engines, particularly those intended for gyrocopters [1]. Their approach was, shall we say, rotational, emphasizing smoothness and balance in a way that captured the imagination of early aviators.

Their fascinating line of rotary powerplants included:

  • The Adams-Farwell 36 hp 5-cylinder rotary engine, featuring a bore and stroke of 4.25 in × 3.25 in (108 mm × 83 mm) [2] [4] [7]. A compact and relatively lightweight unit for its time.
  • The Adams-Farwell 50 HP [7].
  • The Adams-Farwell 55 hp 5-cylinder rotary, with a larger bore and stroke of 5.25 in × 5 in (133 mm × 127 mm) [2] [7].
  • The Adams-Farwell 63 hp 5-cylinder rotary, further refined with dimensions of 5.625 in × 5 in (142.9 mm × 127.0 mm) [2] [4] [7].
  • The Adams-Farwell 72 hp 5-cylinder rotary, a more powerful variant with a 6 in × 6 in (150 mm × 150 mm) bore and stroke [2] [4] [7].
  • A truly ambitious design, the Adams-Farwell 280 hp 6-cylinder double rotary, maintaining the 6 in × 6 in (150 mm × 150 mm) bore and stroke [2] [7]. This was a complex beast, essentially two rotary engines geared together, a bold step for its era.
  • Further double rotary configurations were explored, demonstrating a persistent belief in the concept:
    • An Adams-Farwell 6-cylinder double rotary, with 5 in × 5 in (130 mm × 130 mm) cylinders [2].
    • An Adams-Farwell 10-cylinder double rotary, also with 5 in × 5 in (130 mm × 130 mm) cylinders [2].
    • An Adams-Farwell 14-cylinder double rotary, again with 5 in × 5 in (130 mm × 130 mm) cylinders [2].
    • And the Adams-Farwell 18-cylinder double rotary, pushing the limits of this design, also with 5 in × 5 in (130 mm × 130 mm) cylinders [2].
  • Finally, the Adams-Farwell KM 11 [7].

These multi-cylinder double rotaries were engineering marvels, attempting to combine the inherent balance of rotary engines with higher power outputs, though they ultimately faced challenges in cooling and complexity.

ADC

ADC (from "Aircraft Disposal Company") [3] emerged from the ashes of World War I, acquiring a truly staggering 35,000 war-surplus engines in 1920. Their initial foray into production involved assembling engines from existing spares, particularly the Renault 70 hp units, a pragmatic approach to a post-war glut of aviation material. They were, in essence, recycling before it was fashionable.

Their notable contributions to engine development include:

  • The ADC Cirrus, a highly successful and widely used four-cylinder in-line engine that became a cornerstone for light aircraft development.
  • The ADC Airdisco, an air-cooled radial engine, offering a different configuration for specific aircraft needs.
  • The ADC Nimbus, a significant development of the earlier Siddeley Puma engine, aiming for improved performance and reliability.
  • The ADC Airsix, which was intended to be an air-cooled version of the Nimbus, but regrettably, never saw widespread operational use. A good idea, perhaps, but not one that caught sufficient wind.
  • The ADC BR2 [1].
  • The ADC Viper [1].
  • The ADC Airdisco-Renault [1], a hybrid that perhaps sought to combine the best of both worlds, or simply use up available parts.

ADC's history is a fascinating study in post-war industrial adaptation, turning the detritus of conflict into the building blocks of future aviation.

Adept-Airmotive

Source: RMV [1]

Adept-Airmotive, a name that suggests both skill and a drive for propulsion, produced a trio of engines:

These engines, with their progressive numbering, hint at a continuous development cycle, aiming for steady improvements in performance.

Ader

Main article: Clément Ader

Source: RMV [1]

Clément Ader, a pioneer whose vision often outstripped the technology of his time, famously experimented with steam power for flight. His early engines were truly vapourware in the most literal sense, demonstrating an early, if ultimately impractical, approach to propulsion.

His unique contributions include:

  • The Ader Eole engine (Vapour), an early attempt at steam-powered flight.
  • The Ader Avion engine (Vapour), another steam-powered design for his flying machines.
  • The Ader 2V, likely an internal combustion V-twin, marking a shift from steam.
  • The Ader 4V, a more powerful V-4 configuration.

Ader's work, though often leading to dead ends, was foundational in its experimental spirit, pushing the boundaries of what was considered possible for aircraft propulsion.

Adler

Main article: Adlerwerke vorm. Heinrich Kleyer

Source: RMV [1]

Adlerwerke vorm. Heinrich Kleyer, a German company with a robust industrial background, also contributed to the early development of aircraft engines. Their designs reflect the prevalent inline and V-engine configurations of the period, aiming for reliable power delivery.

Their offerings included:

  • The Adler 50 hp 4-cylinder in-line engine, with a bore and stroke of 100 mm × 125 mm (3.9 in × 4.9 in) [2]. A solid, if not revolutionary, design.
  • The Adler 100 hp 6-cylinder in-line, expanding on the inline concept with dimensions of 115 mm × 135 mm (4.5 in × 5.3 in) [2]. More cylinders, more power, more complexity. The classic path.
  • The Adler 222 hp V-8, a more powerful and compact V-configuration engine, featuring a bore and stroke of 116 mm × 160 mm (4.6 in × 6.3 in) [2].

These engines demonstrate Adler's capacity for producing conventional, yet effective, powerplants for the nascent aviation industry.

Adorjan & Dedics

Source: RMV [1]

Adorjan & Dedics, a collaboration that sounds like a legal firm more than an engine manufacturer, offered a single, concise entry:

  • The Adorjan & Dedics 2V. One can infer a V-twin configuration, a common and relatively simple design for early aircraft.

Advance Engines

Source: RMV [1]

Advance Engines, a name that suggests progress, if not outright innovation, provided a foundational engine:

  • The Advance 4V, rated at 20/25 HP. A V-4 configuration, offering a balance of power and compactness for smaller aircraft.

Advanced Engine Design

Source: RMV [1]

Advanced Engine Design (AED), a company that clearly aimed for the cutting edge, offered a range of engines, including conversions and specialized single-cylinder units. Their "Spitfire" series, while perhaps optimistically named, suggests a focus on performance.

Their diverse lineup included:

  • Advanced Engine Design Spitfire 1 Cylinder
  • Advanced Engine Design Spitfire 2 Cylinder
  • Advanced Engine Design Spitfire 3 Cylinder
  • Advanced Engine Design Spitfire 4 Cylinder
  • Advanced Engine Design K2-1000
  • Advanced Engine Design 110 HP (BMW Conversion). A practical approach, leveraging existing automotive technology for aviation purposes.
  • Advanced Engine Design 220 LC
  • Advanced Engine Design 440 LC
  • Advanced Engine Design 660 LC
  • Advanced Engine Design 880 LC
  • Advanced Engine Design 530 (Kawasaki Conversion). Another example of adapting reliable automotive engines for flight, a common pathway for experimental aircraft.

AED's range demonstrates a willingness to explore various configurations and power sources, catering to a market that values adaptability.

AEADC

(Aircraft Engine & Accessory Development Corporation) Source: RMV [1]

The Aircraft Engine & Accessory Development Corporation (AEADC) focused on developing more substantial powerplants, often with military applications in mind, as suggested by their "Gryphon" designations.

Their offerings included:

  • AEADC Gryphon M [7]
  • AEADC Gryphon N [7]
  • AEADC O-510 (Gryphon M) [7]
  • AEADC O-810 (Gryphon N) [7]

The dual nomenclature (Gryphon and O-series) suggests different internal or military designations, indicating a level of formal development for these powerful engines.

AEC

Source: RMV [1]

AEC, a concise designation for a company, contributed one specific engine:

  • The AEC Keane. A name that points to a particular design or perhaps a collaboration, adding another piece to the intricate puzzle of early engine development.

Aeolus Flugmotor

Source: RMV [1]

The Aeolus Flugmotor, a name that evokes the Greek god of winds, suggests a focus on air-related technology. Its singular entry is:

  • Aeolus Flugmotor. A tantalizingly brief entry, leaving much to the imagination about this wind-inspired powerplant.

Aerien CC

Source: RMV [1]

Aerien CC, another somewhat mysterious entity in this vast list, offered engines of modest power:

  • Aerien 20/25 HP
  • Aerien 30 HP

These engines likely powered smaller, lighter aircraft, where efficiency and simplicity were paramount.

Aermacchi

Main article: Aermacchi

Source: RMV [1]

Aermacchi, an Italian company with a storied history in aviation, is primarily known for its aircraft rather than its engines. However, like many early manufacturers, they did produce some powerplants, if only to integrate them into their designs.

Their contribution listed here is:

  • The Aermacchi MB-2. A designation that likely corresponds to an internal project or a specific aircraft model, reflecting their integrated approach to aviation design.

Aero & Marine

Aero & Marine, a name that covers both air and sea, offered a single engine, presumably for either domain:

  • The Aero & Marine 50 HP. A versatile power output, suitable for various light craft applications.

Aero Adventure

Source: RMV [1]

Aero Adventure, a name that screams ambition and perhaps a touch of recklessness, contributed one engine:

  • The Aero Adventure GFL-2000. A designation that hints at grand scale or futuristic design, suggesting it was intended for something beyond the mundane.

AeroConversions

Main article: Sonex Aircraft

AeroConversions is closely associated with Sonex Aircraft, a company known for its affordable and accessible home-built aircraft. Their engine offerings reflect this philosophy, providing practical and cost-effective power solutions, often based on modified automotive designs.

Their primary offering is:

  • The AeroConversions AeroVee 2180. This engine is a popular choice for light aircraft, a testament to its reliability and the ingenuity behind its design, often leveraging Volkswagen air-cooled engine principles.

Aero Development

Source: RMV [1] (See SPEER)

Aero Development, an entity seemingly linked to SPEER, is a placeholder here. One can only assume their "development" was indeed aero-focused, though the details are elusive.

Aero Engines Ltd.

(formerly William Douglas (Bristol) Ltd.)

Aero Engines Ltd., formerly known by the rather more grounded name of William Douglas (Bristol) Ltd., ventured into the realm of aircraft powerplants. Their naming convention, drawing from mythological and whimsical figures, suggests a certain poetic license applied to their mechanical endeavors.

Their offerings included:

  • The Aero Engines Dryad [3]
  • The Aero Engines Pixie [3]
  • The Aero Engines Sprite [3]
  • The Aero Engines inverted V-4 [1]
  • The Aero Engines inverted V-6 [1]
  • A Douglas 750cc, which likely represents a continuation or adaptation of designs from their earlier incarnation, perhaps drawing on motorcycle engine heritage.

This company's engines, with names like Dryad and Pixie, almost sound too delicate for the rigors of flight, yet they represent a genuine effort to power early aircraft.

Aero Motion

Source: RMV [1]

Aero Motion, a name that evokes fluid movement and purpose, contributed these engines:

  • Aero Motion 0-100
  • Aero Motion 0-101

These sequential designations suggest a progression in design, likely for lighter, perhaps experimental, aircraft.

Aero Motors

Source: RMV [1]

Aero Motors, a straightforward name for a company focused on aerial propulsion, offered one specific model:

  • The Aero Motors Aerobat 150 HP. A name suggesting agility and performance, likely intended for aerobatic or sport flying.

Aero Pixie

Source: RMV [1]

The Aero Pixie, a name that conjures images of tiny, magical flight, lived up to its diminutive moniker with a small, two-stroke engine:

  • The Aero Pixie 153 cc, 2T. A compact and lightweight powerplant, undoubtedly destined for the very lightest of aircraft or perhaps even powered paragliders.

Aero Prag

Source: RMV [1]

Aero Prag, a manufacturer from Prague, contributed several engines, indicating a role in Eastern European aviation development.

Their listed engines include:

  • Aeroprag KT-422
  • Aeroprag AP-45
  • Aeroprag TP-422

These designations suggest a range of power outputs and possibly different design philosophies, contributing to the diversity of available powerplants.

Aero Products

(Aero Products Aeronautical Products Corp, Naugatuck CT.) Source: RMV [1]

Aero Products, hailing from Naugatuck, CT, offered an engine with a rather assertive name:

  • The Aero Products Scorpion 100 HP. A name that implies speed and perhaps a certain sting in its performance, likely for lighter, faster aircraft.

Aero Sled

Source: RMV [1]

Aero Sled, a name that sounds more like a winter recreation vehicle than an aircraft engine, nevertheless produced a powerplant:

  • The Aero Sled Twin Flat, 20 HP. A horizontally opposed twin-cylinder engine, a common and efficient configuration for light aircraft, despite its rather earthbound name.

Aero Sport International

Source: RMV [1]

Aero Sport International ventured into the more exotic realm of engine design with a Wankel rotary. The Wankel, with its triangular rotor, is often seen as a departure from conventional piston engines, promising smoothness and high power-to-weight ratios, albeit with its own set of engineering challenges.

Their offering:

  • The Aero Sport International Wade Aero (WANKEL), available in two types. This suggests a commitment to exploring alternative engine architectures for sport aviation.

AeroTwin Motors Corporation

Main article: AirScooter Corporation

AeroTwin Motors Corporation is notably linked to the AirScooter Corporation, a venture focused on personal aerial vehicles. Their engine design reflects the need for compact, relatively powerful units suitable for rotorcraft.

Their primary listed engine is:

  • The AeroTwin AT972T. This engine is a twin-cylinder, two-stroke design, often chosen for its simplicity and power-to-weight ratio in lightweight helicopter applications.

Aerojet

Aerojet is a name synonymous with rocket propulsion, having produced a vast array of rocket engines primarily for missiles. Their history is one of raw power and the relentless pursuit of space and defense capabilities. They eventually merged with Pratt & Whitney Rocketdyne, solidifying their legacy in the realm of high-thrust propulsion.

Their extensive list of rocket engines, often designated with "LR" (Liquid Rocket) or "SR" (Solid Rocket), includes:

  • Aerojet LR1 (Aerojet 25AL-1000) [8]
  • Aerojet LR3 (Aerojet 25ALD-1000) [8]
  • Aerojet LR5 (Aerojet X40ALD-3000) [8]
  • Aerojet LR7 (Aerojet ZCALT-6000) [8]
  • Aerojet LR9 (Aerojet X4AL-1000) [8]
  • Aerojet LR13 (Aerojet X60ALD-4000 / Aerojet 4.104a / Aerojet 4.103a) [8]
  • Aerojet LR15 (Aerojet XCNLT-1500) [8]
  • Aerojet LR45 (Aerojet AJ24-1) [8]
  • Aerojet LR49 [8]
  • Aerojet LR51 [8]
  • Aerojet LR53 [8]
  • Aerojet LR59 (CIM-99 Bomarc booster engine). A booster for a rather aggressive missile, demonstrating their focus.
  • The formidable Aerojet LR87, a twin-chamber liquid-propellant rocket engine used on the Titan family of launch vehicles.
  • The equally potent Aerojet LR91, used as an upper-stage engine for the Titan.
  • Aerojet-General SR19 (Aerojet Minuteman 2nd stage motor). Solid rocket motors, offering simpler operation for missile stages.
  • Aerojet 1KS-2800A [8]
  • Aerojet 2KS-11000 (X102C1) [8]
  • Aerojet 2KS-33000A [8]
  • Aerojet 2.2KS-33000 [9]
  • Aerojet 2.5KS-18000 (X103C1) [8] [10]
  • Aerojet 5KS-4500 [9]
  • Aerojet 12AS-250 Junior [9]
  • Aerojet 14AS-1000 (D-5) – RATO unit [9] [8]. Rocket-Assisted Take Off units, providing a crucial boost for heavily loaded aircraft.
  • Aerojet 15KS-1000 [10] RATO unit.
  • Aerojet 15NS-250 [10].
  • Aerojet 30AS-1000C – RATO unit [8].
  • Aerojet 2.2KS-11000 [9].
  • The Aerojet AJ10, a versatile hypergolic liquid-propellant rocket engine used in various upper stages, including the Apollo Service Module and the Space Shuttle's Orbital Maneuvering System.
  • The Aerojet AJ-260 – notably, the largest solid-rocket motor ever built, a true behemoth of propulsion.
  • The Aerojet M-1, an incredibly powerful liquid hydrogen/liquid oxygen engine, though it never reached flight status, its development pushed the boundaries of large-scale rocket technology.
  • Aerojet Hawk motor [10] (for Hawk SAM). A smaller, tactical rocket motor.
  • Aerojet Polaris motor, for the submarine-launched ballistic missile.
  • Aerojet Senior [10].

Aerojet's legacy is a powerful one, literally, driving many of the critical defense and space programs of the 20th century.

Aeromarine Company

Source: RMV [1]

The Aeromarine Company, perhaps a precursor or a distinct entity from the more famous Aeromarine, offered a unique propulsion system:

  • The Aeromarine Company D5-1 (Pulse-Jet). A pulse-jet, an early and rather loud form of jet propulsion, often characterized by its distinctive "buzzing" sound. A brave choice for any aircraft.

Aeromarine

Main article: Aeromarine

Aeromarine was a prominent early American aircraft and engine manufacturer, known for its pioneering work in seaplanes and its contributions to the nascent aviation industry. Their engines, often in inline or V-configurations, powered many of the early aircraft that explored the possibilities of flight.

Their diverse range of engines included:

  • Aeromarine AL [1]
  • Aeromarine NAL [1]
  • Aeromarine S [1]
  • Aeromarine S-12 [1]
  • Aeromarine AR-3 [7]
  • Aeromarine AR-3-40 [7]
  • Aeromarine AR-5 [7]
  • Aeromarine AR-7 [1]
  • Aeromarine AL-24 [1]
  • Aeromarine B-9 [1]
  • The Aeromarine B-45, a V-8 engine.
  • The Aeromarine B-90, a more powerful V-8.
  • The Aeromarine D-12, a 150 hp engine with a bore and stroke of 4.3125 in × 5.125 in (109.54 mm × 130.18 mm) [2] [7].
  • The Aeromarine K-6, a 6-cylinder inline engine.
  • The Aeromarine L-6, a 130 hp engine with dimensions of 4.25 in × 6.5 in (108 mm × 165 mm) [1] [2].
    • Variants included the Aeromarine L-6-D (direct drive) [2] [11]
    • And the Aeromarine L-6-G (geared) [2] [11], offering flexibility in propeller drive.
  • The Aeromarine L-8, a 192 hp engine, sharing the 4.25 in × 6.5 in (108 mm × 165 mm) bore and stroke [2] [7].
  • Aeromarine RAD [7]
  • Aeromarine T-6 [7]
  • Aeromarine U-6 [7]
  • Aeromarine U-6-D [1]
  • Aeromarine U-8 [1]
  • Aeromarine U-8-873 [1]
  • Aeromarine U-8D [7]
  • An Aeromarine 85 hp engine from 1914 [7].
  • The Aeromarine 90hp.
  • An Aeromarine 100 hp V-8, with a bore and stroke of 3.5 in × 5.125 in (88.9 mm × 130.2 mm) [1] [2] [7].

Aeromarine's engines were instrumental in the early days of aviation, powering a variety of aircraft, particularly those taking to the water.

Aeromax

Source: RMV [1]

Aeromax, a name that suggests peak aerial performance, contributed a couple of specific engine models:

  • Aeromax 100 I-F-B
  • Aeromax 100 L-D

These designations, though cryptic without further context, hint at variations in configuration or fuel delivery, all within the 100-horsepower range.

Aeromotion

See: AMI

Aeromotion, a name that promises forward movement, is a cross-reference to AMI. The nomenclature suggests a focus on dynamic flight.

Aeromotor

(Detroit Aeromotor. Const. Co) Source: RMV [1]

The Detroit Aeromotor Construction Co., a product of America's industrial heartland, offered a pair of inline engines:

  • The Aeromotor 30 hp 4-cylinder in-line [2]. A modest but reliable choice for early aircraft.
  • The Aeromotor 75 hp 6-cylinder in-line [2]. More power, more cylinders, a common progression in engine design.

These engines represent Detroit's early, albeit perhaps less famous, contributions to aviation.

Aeronamic

Source: RMV [1]

Aeronamic, a name that combines aerodynamic principles with dynamic power, contributed a single engine:

  • The Aeronamic ATS. A designation that offers little in the way of specifics but implies a system designed for aerial applications.

Aeronautical Engineering Co.

Source: RMV [1]

The Aeronautical Engineering Co., a rather generic but descriptive name, offered a radial engine:

  • An Aeronautical Engineering 9-cylinder radial, rated at 200 HP. A powerful radial engine for its time, suggesting a robust design suitable for larger aircraft.

Aeronca

Main article: Aeronca Aircraft

Aeronca Aircraft, a name synonymous with light, affordable aircraft, naturally produced engines to power their creations. Their focus was on simplicity and reliability for the general aviation market.

Their well-known horizontally opposed engines include:

  • The Aeronca E-107 (O-107), a small, two-cylinder engine that powered many early Aeronca aircraft.
  • The Aeronca E-113 (O-113), an improved version of the E-107, offering slightly more power and enhanced reliability.

These engines were perfectly suited for the light aircraft of the era, contributing to the accessibility of private flying.

Aeroplane Motors Company

(Aeroplane Motors) Source: RMV [1]

The Aeroplane Motors Company, with a name as direct as its purpose, offered a V-8 engine:

  • The Aeroplane 59 hp V-8, with a bore and stroke of 3.98 in × 4.72 in (101 mm × 120 mm) [2]. A compact V-8, providing a decent power output for its size.

Aeroprotech

Source: RMV [1]

Aeroprotech, a name that suggests both air and protection, contributed a modified automotive engine:

  • The Aeroprotech VW 2.3. A Volkswagen conversion, indicating a focus on cost-effective and readily available powerplants for light aircraft.

Aerosila

Main article: Aerosila

Source: RMV [1]

Aerosila, a Russian design bureau, is primarily known for its propellers and integrated propulsion systems, but they also have a history of developing auxiliary power units (APUs) and other specialized engines. Their work often supports larger Soviet and Russian aircraft designs.

Their listed engines and power units include:

  • Aerosila TA-4 FE
  • Aerosila 6 A/U
  • Aerosila 8 N/K
  • Aerosila 12
  • Aerosila 12-60
  • Aerosila 14 (-032,-130,-35)
  • Aerosila 18-100 (-200)
  • GTTP-300

These entries suggest a range of auxiliary power units and perhaps smaller turboshaft or turboprop designs, crucial for supporting the operations of larger aircraft.

Aerosport

Main article: Aerosport Inc

Aerosport Inc focused on providing engines for sport aviation, often involving conversions of existing automotive powerplants to make them suitable for flight. This approach emphasizes affordability and accessibility for the home-built aircraft market.

Their notable offering is:

  • The Aerosport-Rockwell LB600. This engine likely represents a collaboration or adaptation, providing a robust power solution for sport aircraft.

Aerostar

Main article: Aerostar

Source: RMV [1]

Aerostar, a Romanian aerospace company, has been involved in aircraft manufacturing and maintenance, including the production of engines under license. Their contributions often involve adapting well-established designs for local production and use.

Their listed engines include:

  • The Aerostar M14P, a license-built version of the robust Russian Vedeneyev M14P radial engine, popular in aerobatic and agricultural aircraft.
  • The Aerostar M14V-26, another variant of the M14P, indicating a commitment to this powerful and reliable design.

Aerostar's role highlights the international exchange of engine technology, bringing proven designs to new markets.

Aerotech engines

Source: RMV [1]

Aerotech engines, a rather broad classification, offered a simple two-stroke engine:

  • The Aerotech 2 Cylinder 2T. A basic, lightweight two-stroke engine, likely for ultralight aircraft or other applications where simplicity is key.

Aerotech-PL

Source: RMV [1]

Aerotech-PL specialized in converting automotive engines for aircraft use, a common practice in the experimental and home-built aviation communities. This approach leverages the widespread availability and relative affordability of car engines.

Their conversions included:

  • Aerotech-PL EA81, a Subaru conversion.
  • Aerotech-PL VW conversion, utilizing the popular Volkswagen air-cooled engine.
  • Aerotech-PL BMW conversion, adapting the more powerful and sophisticated BMW automotive engines.
  • Aerotech-PL Suzuki conversion.
  • Aerotech-PL Guzzi conversion, likely using Moto Guzzi motorcycle engines, known for their V-twin configuration.

Aerotech-PL's work demonstrates the ingenuity involved in adapting existing technology for aerial purposes, often providing robust and cost-effective solutions.

Aerotechnik

Main article: Evektor-Aerotechnik

Source: RMV [1]

Evektor-Aerotechnik, a Czech company primarily known for its aircraft, also manufactured engines, sometimes under license. Their offerings reflect a blend of original design and licensed production, serving the light aircraft market.

Their listed engines include:

  • Aerotechnik Tatra-100
  • Aerotechnik Tatra-102
  • Aerotechnik Hirth (Lic), indicating licensed production of Hirth engines.
  • The Aerotechnik Mikron (Lic), another licensed production, likely a compact and efficient engine.
  • Aerotechnik Tatra-714 (VW), a Volkswagen conversion, demonstrating a pragmatic approach to engine sourcing.

Aerotechnik's engine production supported their aircraft manufacturing, providing integrated solutions for their designs.

Aerotek

Source: RMV [1]

Aerotek focused on converting high-performance automotive engines for aviation use. Their choice of the Mazda RX-7 engine suggests a pursuit of high power-to-weight ratios, often favored in experimental aircraft.

Their conversion:

  • Aerotek Mazda RX-7 (conversion). The Mazda RX-7's Wankel rotary engine offered a unique blend of smoothness and power, making it an attractive, albeit complex, candidate for aircraft adaptation.

AES

(See Rev-Air) [1]

AES, a concise designation, is a cross-reference to Rev-Air. One assumes their focus was on engines, but details remain hidden behind this redirection.

Affordable Turbine Power

Source: RMV [1]

Affordable Turbine Power, a company with a mission clearly stated in its name, aimed to bring the advantages of turbine technology to a broader market, presumably for smaller aircraft or specialized applications where cost is a significant factor.

Their offering:

  • Affordable Turbine Power Model 6.5. This model represents an effort to miniaturize and economize turbine engine design, a challenging but potentially rewarding endeavor.

AFR

Source: RMV [1]

AFR, a rather minimalist designation, specialized in converting BMW motorcycle engines for aircraft use. This approach capitalizes on the robust engineering and performance characteristics of BMW's boxer engines, adapting them for aerial propulsion.

Their conversions included:

  • AFR BMW Conversion
  • AFR R 100, rated at 70/80 hp.
  • AFR R 1100D, offering 90/100 hp.
  • AFR R 1100S, with 98 hp.
  • AFR R 1150RT, producing 95 hp.
  • AFR R 1200GS, a more powerful variant at 100 hp.

These conversions demonstrate the versatility of BMW's flat-twin engines, finding a second life providing thrust for light aircraft.

Agilis

(Agilis Engines) Sources: RMV [1] [12] [13]

Agilis Engines, a company whose name suggests agility and quickness, has been involved in the development of turbine engines, focusing on compact and efficient designs. Their offerings often cater to the needs of smaller jets or specialized propulsion systems, emphasizing performance in a compact package.

Their range of turbine engines includes:

  • Agilis TF-800
  • Agilis TF-1000
  • Agilis TF-1200
  • Agilis TF-1400
  • Agilis TF-1500
  • Agilis TJ-60 (MT-60)
  • Agilis TJ-75
  • Agilis TJ-80
  • Agilis TJ-400

The "TF" (Turbofan) and "TJ" (Turbojet) designations clearly indicate their expertise in jet propulsion, offering various thrust levels for diverse applications. Agilis is, by all accounts, striving for "tougher, longer-lived engines," which is a commendable goal in any engineering endeavor [13].

Agusta

Main article: Agusta

Agusta, a venerable Italian aerospace company, is primarily known for its helicopters. While their focus has been on rotorcraft, they have also engaged in engine development, often for integration into their own helicopter designs or for specialized applications.

Their listed engines include:

These engines represent Agusta's efforts to provide integrated propulsion solutions, often tailored for the demanding environment of helicopter flight.

Ahrbecker Son and Hankers

Source: RMV [1]

Ahrbecker Son and Hankers, a name that sounds like a long-established family business, ventured into early engine development with both conventional and steam-powered designs. Their range showcases the diverse approaches to propulsion in the early days of aviation.

Their offerings included:

  • Ahrbecker Son and Hankers 10 HP
  • Ahrbecker Son and Hankers 20 HP
  • Ahrbecker Son and Hankers 1 Cylinder – vapor. A steam engine, a fascinating but ultimately impractical path for most aircraft.

AIC

(Aviation Ind. China. See Catic and Carec) [1]

AIC, standing for Aviation Industry China, serves as a broad umbrella for numerous Chinese aerospace entities. It's a redirect to Catic and Carec, indicating a complex organizational structure for a nation rapidly advancing its aviation capabilities.

Aichi

A preserved Aichi Atsuta

Main article: Aichi Kokuki

Source: Gunston 1989 [14] except where noted.

Aichi Kokuki, a significant Japanese aircraft manufacturer, also engaged in engine production, often under license, to power its own aircraft designs during a period of intense military aviation development. Their engines were crucial for the Imperial Japanese Navy's air arm.

Their contributions included:

  • The Aichi AC-1
  • The Aichi Atsuta (Atsuta 31), which was a license-built version of the highly successful German Daimler-Benz DB 601A, specifically for the Imperial Japanese Navy (IJN). This was a crucial engine for high-performance aircraft.
  • Aichi AE1A (Atsuta 21)
  • Aichi AE1P (Atsuta 32)
  • The Aichi Ha-70, an ambitious design that coupled two Atsuta 30 engines, aiming for even greater power. This twin-engine arrangement was a common strategy for increasing output.

Aichi's engine work, particularly the licensed production of advanced German designs, highlights the rapid technological transfer and development during the wartime era.

AICTA

(AICTA Design Work, Prague, Czech Republic)

AICTA Design Work, based in Prague, contributed a specific engine design:

  • The AICTA LMD 416-00R. This designation suggests a detailed and perhaps modular design, indicating a modern approach to engine architecture.

Aile Volante

Aile Volante, French for "Flying Wing," a rather evocative name for an aviation company, offered a couple of distinct engine models:

  • Aile Volante C.C.2 [15]
  • Aile Volante C.C.4 [16]

These sequential designations suggest a progression in their design, perhaps aimed at powering their own "flying wing" concepts or other innovative aircraft.

Air Repair Incorporated

Source: RMV [1] (Jacobs Licence)

Air Repair Incorporated took on the task of producing Jacobs engines under license, ensuring the availability of these popular radial powerplants. This was a pragmatic choice, leveraging proven designs for a demanding market.

Their license-built Jacobs engines included:

(Jacobs-Page Licence)

They also produced a variant under a Jacobs-Page license:

Air Repair Incorporated's role in license production was vital for supplying reliable engines to the aviation industry, especially during periods of high demand.

Air Ryder

Source: RMV [1]

Air Ryder, a name that evokes a sense of effortless flight, focused on converting automotive engines for aerial use. Their chosen powerplant, the Subaru EA-81, is a popular choice for light aircraft due to its reliability and relatively low cost.

Their conversion:

  • The Air Ryder Subaru EA-81 (Conversion). This adaptation demonstrates the ongoing trend of leveraging automotive technology to make aviation more accessible.

Air Technical Arsenal

Source: RMV [1]

The Air Technical Arsenal, a name that suggests a state-sponsored or military-oriented approach to design, contributed a pair of specific engines:

  • Air Technical Arsenal TSU-11
  • Air Technical Arsenal TR-30

These designations hint at specialized applications, likely within military or research contexts, where technical arsenals tend to operate.

Air-Craft Engine Corp

Source: RMV [1]

The Air-Craft Engine Corp, a straightforward and unambiguous name, offered one particular engine:

  • The Air-Craft Engine Corp LA-1. This designation suggests a specific model in their lineup, contributing to the diverse tapestry of early engine manufacturers.

Aircat

(Detroit Aircraft Eng. Corp.) Source: RMV [1]

The Detroit Aircraft Engineering Corp., operating under the more evocative name "Aircat," produced a radial engine:

  • The Aircat Radial 5 cylinders. A five-cylinder radial engine, a common configuration for its balance and power, likely intended for light to medium-sized aircraft.

Aircooled Motors

See: Franklin

Aircooled Motors, a company whose name clearly indicates its design philosophy, is a cross-reference to Franklin. Their legacy is one of robust, air-cooled engines that powered countless light aircraft.

Aircraft Engine Co

(Aircraft Engine Co Inc, Oakland, CA)

The Aircraft Engine Co Inc, based in Oakland, CA, contributed a relatively powerful engine in the early days of aviation:

  • The Aircraft 1911, rated at 80 hp. A significant output for its time, suggesting it powered some of the larger, more ambitious aircraft of the early 1910s.

Aircraft & Ind. Motor Corp

(See Schubert)

Aircraft & Industrial Motor Corp is a redirect to Schubert. One assumes their output was as industrial as it was airborne.

AiResearch

See: Garrett, Allied Signal and Honeywell

AiResearch, a name that once stood for advanced research in air systems, is now absorbed into the larger entities of Garrett, Allied Signal, and Honeywell. Its legacy, however, is one of innovation in various aerospace components, including engines and auxiliary power units.

Airex

Airex, a name that sounds like a breath of fresh air, offered a couple of distinct engines, perhaps hinting at a focus on air-cooled designs or specific airflow characteristics.

  • Airex Rx2 [1]
  • Airex Rx10 [1]

These numerical designations suggest a progression in their rotary or experimental designs.

Airmotive-Perito

See: Adept-Airmotive

Airmotive-Perito is a cross-reference to Adept-Airmotive. The combination of names suggests a partnership or a specific design collaboration.

Airship Aircraft Engine Company

The Airship Aircraft Engine Company, a name that leaves no doubt about its specialization, contributed a diesel engine:

  • The Airship A-Tech 100 Diesel [1]. A diesel engine for airships, which required reliable, fuel-efficient powerplants for long-duration flights, a rather specific niche.

Airtrike

(AirTrike GmbH i.L., Berlin, Germany)

AirTrike GmbH, a German company, contributed a specific engine design, likely tailored for its namesake "AirTrike" ultralight aircraft.

  • The Airtrike 850ti. This designation suggests a modern, perhaps turbocharged, engine suitable for lightweight aviation.

AISA

Main article: Aeronáutica Industrial S.A.

Source: RMV [1]

Aeronáutica Industrial S.A. (AISA), a Spanish aircraft manufacturer, also experimented with propulsion systems beyond conventional piston engines. Their entry here hints at a foray into more advanced, perhaps even experimental, technology.

Their listed contribution:

  • A Ramjet on rotor. This is a fascinating and rather aggressive concept, where ramjet engines are mounted on the tips of helicopter rotor blades, providing direct thrust for rotation. A bold, if noisy, approach to rotorcraft propulsion.

Aixro

Source: RMV [1]

Aixro, a manufacturer focused on rotary Wankel engines, offers a range of powerplants known for their compact size, smoothness, and high power-to-weight ratio. These engines are often found in experimental aircraft and specialized applications.

Their Wankel engine lineup includes:

  • The Aixro XF-40
  • Aixro XH-40
  • Aixro XP-40
  • Aixro XR-30
  • Aixro XR-40
  • Aixro XR-50

The "X" designation often refers to experimental or unique configurations, fitting for the Wankel design. These engines represent a departure from traditional piston power, offering an alternative for those seeking different performance characteristics.

Ajax

Source: RMV [1]

Ajax, a name that evokes strength and Greek mythology, contributed a couple of radial engine designs, exploring different cylinder arrangements.

Their engines included:

  • An Ajax 7-cylinder rotary. Rotary engines, while powerful for their weight, had their own set of dynamic challenges.
  • An Ajax 6-cylinder radial (2 rows of 3 cyls.), rated at 80 HP. A two-row radial is a less common configuration, suggesting a unique approach to packaging and cooling.

These designs showcase the inventive spirit of early engine manufacturers, constantly seeking optimal configurations.

Akkerman

Akkerman, a manufacturer whose name has a certain, solid ring to it, offered a specialized engine:

  • The Akkerman Model 235, rated at 30 HP, designed to run on special fuel [1]. The requirement for "special fuel" hints at a unique, perhaps experimental, combustion process or a high-performance blend.

Akron

Akron, a name associated with rubber and early aviation in the US, contributed engines under its own name, though it's also linked to Funk.

Their listed engines:

  • Funk E200
  • Funk E4L [1]

These entries suggest a collaboration or a naming convention that crossed company lines, a common occurrence in the developing industry.

Albatross

(Albatross Co Detroit)

The Albatross Co of Detroit, named after a bird renowned for its soaring capabilities, produced a pair of radial engines, emphasizing power and a compact form factor.

Their radial engines included:

  • The Albatross 50 hp 6-cylinder radial, with a bore and stroke of 4.5 in × 5 in (110 mm × 130 mm) [1] [2].
  • The Albatross 100 hp 6-cylinder radial, a more powerful variant with dimensions of 5.5 in × 5 in (140 mm × 130 mm) [1] [2].

These radial designs were likely intended for aircraft requiring a good power-to-weight ratio, a desirable trait for any flying machine.

Aldasoro

Aldasoro, a name that carries a certain exotic flair, contributed a single aero engine:

  • The Aldasoro aero engine [1]. A tantalizingly brief entry, leaving one to wonder about its design, power, and ultimate fate.

Alexander

Alexander, a name of historical significance, contributed a couple of engine configurations:

  • An Alexander 4-cylinder [1]. A straightforward inline or opposed-cylinder design.
  • An Alexander radial 5-cylinder [1]. A compact radial engine, offering a good power-to-weight ratio.

These entries suggest a manufacturer exploring different architectural approaches to aircraft propulsion.

Alfa Romeo

Main article: Alfa Romeo

Societa per Azioni Alfa Romeo, a name more commonly associated with high-performance automobiles, also had a significant, if often overlooked, presence in the aircraft engine industry. Their engines, particularly during the interwar and World War II periods, were known for their sophisticated design and often license-built from successful foreign models, adapted and refined with Italian engineering prowess.

Their extensive list of aero engines included:

  • The Romeo 600 hp V-12 [2]. A powerful early V-12, demonstrating their capacity for large, complex engines.
  • Alfa Romeo V-6 diesel [18] and Alfa Romeo V-12 diesel [18] [19]. These diesel engines represented an early interest in fuel efficiency and alternative fuels for aviation, a forward-thinking approach for their time.
  • The Alfa Romeo D2, an early radial engine.
  • Alfa Romeo 100 or RA.1100 [1]
  • Alfa Romeo 101 or RA.1101 [1]
  • The Alfa Romeo 110/111, a series of inline engines.
  • The Alfa Romeo 115/116, further inline developments.
  • The Alfa Romeo 121
  • The Alfa Romeo 122
  • The Alfa Romeo 125/126/127/128/129/131, a family of radial engines, often license-built versions of Bristol designs, showcasing a range of power outputs and applications.
  • The Alfa Romeo 135/136, a large radial engine, pushing the boundaries of power.
  • Alfa Romeo 138 R.C.23/65
  • The RA.1000 Monsone – a crucial license-built version of the formidable Daimler-Benz DB 601 engine, powering many Italian fighter aircraft during WWII.
  • Alfa Romeo RA.1050, a development of the Monsone.
  • Alfa Romeo RA.1100 or AR.100 [1]
  • Alfa Romeo RA.1101 or AR.101 [1]
  • Alfa Romeo AR.318
  • Alfa Romeo Dux
  • Alfa Romeo Jupiter – a license-built version of the renowned Bristol Jupiter radial engine.
  • Alfa Romeo Lynx/Lince – a license-built version of the Armstrong Siddeley Lynx radial.
  • The Alfa Romeo Mercury [citation needed], likely a license-built Bristol Mercury.
  • The Alfa Romeo Pegasus [citation needed], another probable license-built Bristol design.

Alfa Romeo's foray into aero engines demonstrates their engineering versatility and their significant, if somewhat overshadowed, role in powering Italy's aviation efforts.

Alfaro

Alfaro, a name that sounds like it belongs to an explorer, contributed a couple of intriguing engine designs:

  • The Alfaro baby engine. A diminutive powerplant, likely for very light or experimental aircraft.
  • The Alfaro 155 hp 4-cylinder barrel engine. Barrel engines, with their unique swashplate or camplate mechanisms, were an alternative to conventional piston engines, promising compactness and reduced vibration. This particular design from Alfaro was a bold engineering choice.

Allen

Allen, a simple and direct name, contributed a specific engine model:

  • The Allen O-675. This designation suggests an opposed-cylinder engine with a displacement of 675 cubic inches, a common configuration for reliability in general aviation.

Alliance

(Aubrey W. Hess/Alliance Aircraft Corporation)

Alliance, formed under Aubrey W. Hess and Alliance Aircraft Corporation, offered a specific engine:

  • The Hess Warrior [20]. An evocative name like "Warrior" suggests a focus on robust and powerful performance, fitting for an aircraft engine.

Allied

Allied, a name that implies collaboration or a collective effort, produced a license-built French engine:

  • The Allied Monsoon, a licensed manufacturer of the French Règnier 4L. This highlights the international transfer of successful engine designs.

AlliedSignal

Main article: AlliedSignal

AlliedSignal was a major American aerospace company with a broad portfolio, including a significant presence in aircraft engines, particularly turboprops and turbofans. Their designs were known for their reliability and efficiency, powering a wide range of commercial and military aircraft.

Their notable engines included:

  • The AlliedSignal TPE-331, a highly successful and widely used turboprop engine, known for its robustness and performance in regional aircraft and utility planes.
  • The Garrett TPF351, another turboprop, demonstrating the continuity of designs from the Garrett lineage.
  • The AlliedSignal LTS101, a turboshaft engine often found in helicopters.
  • The AlliedSignal ALF502/LF507 series, a family of turbofan engines that were early pioneers in the geared turbofan concept, offering improved fuel efficiency and reduced noise.

AlliedSignal's engines played a crucial role in powering various aircraft types, from regional airliners to business jets, before the company's eventual absorption into Honeywell.

Allis-Chalmers

Main article: Allis-Chalmers

Source: Gunston [14]

Allis-Chalmers, primarily known as a heavy equipment manufacturer, had a brief but notable foray into aircraft engine production, particularly during wartime. Their entry into this specialized field showcased their industrial capacity and adaptability.

Their listed engine:

  • The Allis-Chalmers J36, a turbojet engine. This indicates a significant commitment to advanced propulsion technology, likely developed during the early jet age.

Allison

Main article: Allison Engine Company

An Allison V-1710 engine, a classic American liquid-cooled V-12, on display.

The Allison Engine Company holds a venerable place in American aviation history, producing a wide array of piston and turbine engines that powered countless military and civilian aircraft. Their liquid-cooled V-12s were legendary during World War II, and their turbine engines continued that legacy into the jet age.

Their extensive and influential engine catalog included:

  • The Allison V-1410 – an early derivative or development related to the Liberty L-12 engine, hinting at a lineage of powerful liquid-cooled designs.
  • The Allison V-1650 – also related to the Liberty L-12, forming a foundation for later V-12 developments.
  • The iconic Allison V-1710, a liquid-cooled V-12 engine that powered numerous American fighter aircraft during WWII, including the P-38 Lightning and early versions of the P-51 Mustang. It was a workhorse, albeit one that sometimes struggled with high-altitude performance until paired with suitable supercharging.
  • The massive Allison V-3420, essentially two V-1710s on a common crankshaft, a truly ambitious 24-cylinder X-engine designed for immense power, though it saw limited production.
  • Allison X-4520, an even larger experimental X-engine.
  • The highly successful Allison 250 (also known as T63 or T703), a compact turboshaft engine that revolutionized light helicopter design and found widespread use in utility aircraft.
  • Allison 252 [21]
  • Allison 504
  • Allison 545 [22]
  • Allison 550 [21]
  • The Pratt & Whitney/Allison 578-DX, a propfan engine, representing a bold, albeit ultimately unsuccessful, attempt at ultra-high bypass propulsion.
  • The Allison J33 (Allison 400), an early centrifugal-flow turbojet, derived from Frank Whittle's designs, powering aircraft like the P-80 Shooting Star.
  • The Allison J35 (Allison 450), an axial-flow turbojet, a more advanced design that powered the F-84 Thunderjet.
  • Allison J56
  • The Allison J71, a powerful axial-flow turbojet used in aircraft like the F-101 Voodoo.
  • Allison J89
  • The Allison J102
  • The Allison T38, an early turboprop.
  • The Allison T39
  • The Allison T40 (Allison 500, 503), a powerful turboprop that combined two T38 sections, notably powering the A2D Skyshark. It was, shall we say, complex.
  • The Allison T44
  • The Allison T54
  • The ubiquitous Allison T56 (501-D), a highly successful turboprop that has powered the C-130 Hercules and P-3 Orion for decades, proving its exceptional reliability.
  • The Allison T61
  • The Allison T63, the military designation for the Model 250 turboshaft.
  • Allison T71
  • Allison T78 [22]
  • Allison T80
  • The Allison T406 (AE1107), a modern turboshaft engine for the V-22 Osprey.
  • The Allison T701 (Allison 501-M62).
  • The Allison T703 (Allison 250).
  • Allison TF32
  • The Allison TF41, a license-built and developed version of the Rolls-Royce Spey turbofan, powering the A-7 Corsair II.
  • Allison GMA 200
  • Allison GMA 500
  • Allison AE3010
  • Allison AE3012
  • Allison PD-37 Pyrodyne, a somewhat enigmatic entry, suggesting a specialized power device.

Allison's engines have been the backbone of American air power and general aviation, a legacy built on both piston and turbine innovation.

Almen

Almen, a concise name, contributed a specific engine model:

  • The Almen A-4. This designation suggests an inline or opposed-cylinder engine, designed for a particular application.

Alvaston

Alvaston, a name that evokes a certain English charm, produced a range of horizontally opposed engines, a configuration favored for its smoothness and compactness, particularly in light aircraft.

Their engines included:

  • The Alvaston 20 hp 2-cylinder opposed, with a bore and stroke of 114 mm × 114 mm (4.5 in × 4.5 in) [2] [23]. A simple, flat-twin design.
  • The Alvaston 30 hp 2-cylinder opposed, with larger dimensions of 132 mm × 127 mm (5.2 in × 5.0 in) [2] [23].
  • The Alvaston 50 hp 4-cylinder opposed, effectively two flat-twins joined, featuring 144 mm × 128 mm (5.7 in × 5.0 in) cylinders [2] [23].

These horizontally opposed engines were well-suited for light aircraft, offering a compact and relatively vibration-free power source.

Alvis

Main article: Alvis Car and Engineering Company

Alvis Car and Engineering Company, a British firm known for its luxury cars and military vehicles, also ventured into the design and manufacture of radial aircraft engines. Their engines, often named after mythological figures, were known for their robust construction and powerful output.

Their radial engine family included:

Alvis engines, particularly the Leonides series, were significant British contributions to radial engine technology, demonstrating the company's engineering prowess beyond its automotive roots.

American Cirrus Engine

See: ACE

American Cirrus Engine is a cross-reference to ACE. Their story is one of transatlantic adaptation and refinement.

American Engineering Corporation

Source: RMV [1]

The American Engineering Corporation, a rather generic but direct name, contributed a specific engine:

  • The ACE Keane. This suggests either a collaboration or a particular design that carried the "Keane" designation, adding to the mosaic of early American engine development.

American Helicopter

American Helicopter, a company focused on rotorcraft, also developed specialized propulsion units for its designs, particularly early pulse-jets.

Their unique engines included:

  • The American Helicopter PJ49 [Pulsejet]. Pulsejets, while simple in design and capable of high speeds, were notoriously loud and inefficient at low speeds.
  • The American Helicopter XPJ49-AH-3. An experimental variant, pushing the boundaries of pulsejet technology for helicopter applications.

These designs highlight the innovative, and sometimes noisy, approaches to early helicopter propulsion.

American Motor & Aviation Co

The American Motor & Aviation Co. contributed a couple of early engine designs, reflecting the diverse approaches to propulsion in the early 20th century.

Their offerings included:

  • An American 1911 rotary. Rotary engines were popular in early aviation for their smooth power delivery, though they had their own operational quirks.
  • An American S-5 radial. A five-cylinder radial engine, a more stable and conventional design than the rotary.

AMCEL

(AMCEL Propulsion Company)

AMCEL Propulsion Company focused on solid-fuel rocket technology, particularly on the innovative concept of controllable solid rockets. This was a significant area of research, as solid rockets are typically simpler but less controllable than liquid-fueled counterparts.

Their listed contribution:

  • The AMCEL controllable solid fuel rocket [10]. This represents an advanced development, aiming to give solid rockets some of the throttleability or thrust vectoring capabilities usually associated with liquid engines.

AMI

(AeroMotion Inc.)

AeroMotion Inc. (AMI) offered a series of "Twin" engines, suggesting horizontally opposed or V-twin configurations, which are common for light aircraft due to their smooth operation.

Their engines included:

  • AeroMotion Twin [24]
  • AeroMotion O-100 Twin
  • AeroMotion O-101 Twin

These designs point to a focus on reliable and relatively compact powerplants for the light aviation market.

AMT Netherlands

(Aviation Microjet Technology)

AMT Netherlands, or Aviation Microjet Technology, specialized in the creation of microjet engines, often used for model aircraft or very small, experimental unmanned aerial vehicles (UAVs). These diminutive turbines are marvels of miniaturization.

Their microjet lineup includes:

  • The AMT Olympus [25]
  • The AMT Titan [26]
  • The AMT Lynx [27]

These engines, named after powerful entities, showcase the impressive thrust that can be generated from incredibly small turbine designs.

AMT USA

(AMT USA, LLC, Cincinnati)

AMT USA, a distinct entity from its Netherlands counterpart, also focused on microjet technology, serving a similar niche for small-scale turbine propulsion.

Their listed engine:

  • The AMT-450 [28]. This designation suggests a specific thrust class, indicating their position in the microjet market.

A.M.U.A.L

(Établissement A.M.U.A.L)

Établissement A.M.U.A.L, a French manufacturer, contributed a series of powerful V-8 engines, showcasing a commitment to high-output powerplants for aircraft.

Their V-8 engines included:

  • The A.M.U.A.L M.J.5, a 65° V-8 producing 350 hp, with cylinders measuring 150 mm × 200 mm (5.9 in × 7.9 in) [2]. The specific V-angle indicates a deliberate design choice for balance and packaging.
  • The A.M.U.A.L M.J.6, a 90° V-8 delivering 400 hp, with the same 150 mm × 200 mm (5.9 in × 7.9 in) cylinders [2]. The 90° V-angle is often chosen for its inherent balance in V-8 designs.
  • The A.M.U.A.L M.J.7, a truly formidable 90° V-8 rated at 600 hp, featuring larger 180 mm × 210 mm (7.1 in × 8.3 in) cylinders [2]. This was a very powerful engine for its era, likely intended for large bombers or transport aircraft.

These engines represent a significant contribution to high-power liquid-cooled engine development in France.

Angle

Angle, a simple and direct name, contributed a specific radial engine design:

  • The Angle 100 hp Radial. A radial engine, offering a compact and air-cooled power solution, suitable for various aircraft types.

Ansaldo

Main article: Gio. Ansaldo & C.

Gio. Ansaldo & C., a major Italian industrial conglomerate, was deeply involved in shipbuilding, armaments, and, notably, aviation. Their engine division produced a range of powerful inline and V-engines, contributing significantly to Italian air power during World War I and the interwar period.

Their listed engines included:

  • The Ansaldo San Giorgio 4E-145, a 6-cylinder inline engine producing 300 hp [2] [29].
  • The Ansaldo San Giorgio 4E-150, another 6-cylinder inline, also rated at 300 hp [2] [29].
  • The Ansaldo San Giorgio 4E-284, a powerful V-12 delivering 450 hp [2] [29].
  • The Ansaldo San Giorgio 4E-290, an even more potent V-12, rated at 550 hp [2] [29].

These engines, often found in Italian fighter and bomber aircraft, demonstrate Ansaldo's capability to produce robust and high-performance powerplants.

Antoinette

Main article: Antoinette (manufacturer)

Source: Gunston [14] [18]

Antoinette (manufacturer), under the ingenious direction of Léon Levavasseur, was a pioneering French company famous for its early V-type aircraft engines. These engines, characterized by their light weight and innovative design, were instrumental in the development of early aviation, though they were sometimes temperamental.

Their groundbreaking engines included:

  • The Antoinette 32 hp V-8, a compact eight-cylinder engine with a bore and stroke of 80 mm × 80 mm (3.1 in × 3.1 in) [2]. This was one of the earliest successful V-8 aero engines.
  • Antoinette 46 hp? A slightly more powerful, yet less clearly defined, variant.
  • The Antoinette 64 hp V-16, a truly ambitious 16-cylinder engine, doubling the V-8's cylinders while retaining the 80 mm × 80 mm (3.1 in × 3.1 in) dimensions [2]. A complex beast for its time.
  • The Antoinette 67hp V-8, with larger cylinders measuring 110 mm × 105 mm (4.3 in × 4.1 in). This model saw more widespread use.
  • The Antoinette 165 hp V-16, a powerful, larger displacement 16-cylinder engine.
  • The Antoinette 134 hp V-8, another V-8 with 110 mm × 105 mm (4.3 in × 4.1 in) cylinders [2].
  • The Antoinette 55 hp V-8 [2].
  • The Antoinette V-32 [2], a rather enigmatic designation, perhaps referring to a V-engine with 32 hp.

Antoinette's engines were at the forefront of early aviation, pushing the boundaries of power and weight, even if their reliability was sometimes a matter of fervent prayer.

Anzani

Main article: Anzani

For British Anzani products see: British Anzani

Source: [14] [18] [30]

An Anzani 6 cylinder radial engine, a classic example of early air-cooled powerplants.

Alessandro Anzani, an Italian engineer based in France, became a prolific manufacturer of aircraft engines, particularly known for his distinctive fan and radial configurations. His engines were relatively simple, air-cooled, and powered many of the early pioneering flights, including Louis Blériot's crossing of the English Channel.

His extensive range of air-cooled Anzani engines included:

  • The Anzani V-2 [31], a basic V-twin for very light aircraft.
  • The characteristic Anzani 3-cylinder fan engines, with cylinders arranged in a fan shape, a distinctive design that was both simple and effective for its time.
  • Anzani 14 hp, with 85 mm × 85 mm (3.3 in × 3.3 in) cylinders [31].
  • Anzani 15 hp, with 85 mm × 100 mm (3.3 in × 3.9 in) cylinders [31].
  • Anzani 24.5 hp, with 105 mm × 130 mm (4.1 in × 5.1 in) cylinders [31].
  • Anzani 31.6 hp, with 120 mm × 130 mm (4.7 in × 5.1 in) cylinders [31].
  • Anzani 42.3 hp, with 135 mm × 150 mm (5.3 in × 5.9 in) cylinders [31].
  • Anzani 10-12 hp, with 85 mm × 85 mm (3.3 in × 3.3 in) cylinders.
  • Anzani 12-15 hp, with 85 mm × 100 mm (3.3 in × 3.9 in) cylinders.
  • Anzani 25-30 hp, with 105 mm × 130 mm (4.1 in × 5.1 in) cylinders.
  • Anzani 30-35 hp, with 120 mm × 130 mm (4.7 in × 5.1 in) cylinders.
  • Anzani 40-45 hp, with 135 mm × 150 mm (5.3 in × 5.9 in) cylinders.
  • Anzani 45-50 hp [31].
  • The Anzani 30hp 3-cylinder radial, with 105 mm × 120 mm (4.1 in × 4.7 in) cylinders [31]. A more compact radial configuration.
  • Anzani 45 hp 5-cylinder radial [31].
  • Anzani 60 hp 5-cylinder radial.
  • The Anzani 6-cylinder radial, a popular choice for many early aircraft.
  • Anzani 40-45 hp radial, with 90 mm × 120 mm (3.5 in × 4.7 in) cylinders [31].
  • Anzani 50-60 hp radial, with 105 mm × 120 mm (4.1 in × 4.7 in) cylinders [31].
  • Anzani 70 hp radial, with 105 mm × 120 mm (4.1 in × 4.7 in) cylinders.
  • Anzani 80 hp radial, with 115 mm × 140 mm (4.5 in × 5.5 in) cylinders [32].
  • Anzani 95 hp 7-cylinder radial.
  • The Anzani 10-cylinder radial, offering higher power.
  • Anzani 60-70 hp radial, with 90 mm × 120 mm (3.5 in × 4.7 in) cylinders [31].
  • Anzani 100-110 hp radial, with 105 mm × 140 mm (4.1 in × 5.5 in) cylinders [31].
  • Anzani 95-100 hp radial, with 105 mm × 145 mm (4.1 in × 5.7 in) cylinders [31].
  • Anzani 125 hp radial, with 115 mm × 150 mm (4.5 in × 5.9 in) cylinders [31].
  • Another Anzani 125 hp radial, with 115 mm × 155 mm (4.5 in × 6.1 in) cylinders [31], indicating slight variations.
  • Anzani 200 hp radial [31].
  • Anzani 100 hp 14-cylinder radial, with 105 mm × 140 mm (4.1 in × 5.5 in) cylinders [31].
  • Anzani 150-160 hp 14-cylinder radial, with 90 mm × 120 mm (3.5 in × 4.7 in) cylinders [32].
  • The truly impressive Anzani 20, a 200 hp 20-cylinder radial, with 105 mm × 140 mm (4.1 in × 5.5 in) cylinders [33]. This was a complex, multi-row radial, a testament to Anzani's ambition.

Anzani also dabbled in water-cooled designs, seeking greater power and reliability, though these were less common for him:

  • Anzani 30-32 hp V-4, with 100 mm × 120 mm (3.9 in × 4.7 in) cylinders [31].
  • Anzani 56-70 hp V-4, with larger 135 mm × 150 mm (5.3 in × 5.9 in) cylinders [31].
  • The colossal Anzani 600-700 hp 20-cylinder radial, with 140 mm × 150 mm (5.5 in × 5.9 in) cylinders [31]. This was an extraordinary "in-line radial" design, featuring 10 banks of 2 cylinders [34] [35], a true engineering marvel of complexity.
  • Anzani W-6 [31].
  • Anzani 6A3 (a 6-cylinder radial producing 60 hp).

Anzani's engines were foundational, powering many "firsts" in aviation, even if their air-cooled nature meant they were not always the most powerful or refined.

ARDEM

(Avions Roger Druine Engines M)

ARDEM, an acronym for Avions Roger Druine Engines, produced engines often associated with light, home-built aircraft designs by Roger Druine. These engines were typically compact and reliable, catering to the experimental aviation community.

Their listed engine:

  • The Ardem 4 CO2. This designation suggests a 4-cylinder, horizontally opposed engine, a common choice for its smoothness and ease of installation in light aircraft.

Ares

(Ares ltd., Finland)

Ares Ltd., a Finnish company, contributed a specific diesel engine design, indicating a focus on fuel efficiency and reliability for aviation, a challenging but promising area of development.

Their offering:

  • The Ares diesel Cirrus [36]. This suggests an adaptation or redesign of the classic Cirrus engine to run on diesel fuel, combining a proven airframe engine with modern fuel technology.

Argus Motoren

Main article: Argus Motoren

Source:Gunston [14] except where noted

Argus Motoren was a significant German aircraft engine manufacturer, particularly prominent in the early 20th century and during World War I. They were known for their reliable inline engines, which powered many German military aircraft. Their designs were characterized by their robust construction and relatively straightforward engineering.

Their extensive range of engines included:

  • The Argus Type I ("50hp"), a 4-cylinder inline engine producing 50-70 hp, with a bore and stroke of 4.88 in × 5.12 in (124 mm × 130 mm) [2] [37].
  • Argus Type II, a 4-cylinder inline rated at 100 hp, with 5.51 in × 5.51 in (140 mm × 140 mm) cylinders [2].
  • The Argus Type III (also known as Argus 110 hp), a 6-cylinder inline engine with 4.88 in × 5.12 in (124 mm × 130 mm) cylinders.
  • The Argus Type IV (also known as 140/150 hp), a 4-cylinder inline producing 140 hp, with 6.1 in × 6.5 in (150 mm × 170 mm) cylinders [2].
  • Argus Type V, a 6-cylinder inline rated at 140 hp, with 5.51 in × 5.51 in (140 mm × 140 mm) cylinders [2].
  • Argus Type VI, another 6-cylinder inline, also 140 hp, with 6.1 in × 6.5 in (150 mm × 170 mm) cylinders [2].
  • Argus Type VII, a 6-cylinder inline delivering 115-130 hp, with 5.12 in × 5.12 in (130 mm × 130 mm) cylinders [2].
  • Argus Type VIII, a 6-cylinder inline producing 190 hp, with 5.91 in × 5.7 in (150 mm × 145 mm) cylinders [2].
  • The Argus As I, a 4-cylinder engine from 1913, producing 100 hp.
  • The Argus As II, a 6-cylinder engine from 1914, delivering 120 hp [38].
  • The Argus As III, a significant 6-cylinder upright inline engine, widely used.
  • The rather unconventional Argus As 5, a 24-cylinder inline radial engine, configured as 6 banks of four cylinders. This was an ambitious, multi-cylinder design.
  • Argus As VI, a 700 hp V-12 engine [35].
  • Argus As VIA [35].
  • Argus As 7 9R, a 700 hp engine [37].
  • The Argus As 8, a 4-cylinder inverted inline engine, a compact design for improved pilot visibility and aerodynamic efficiency [37].
  • The Argus As 10, a highly successful 8-cylinder inverted V-engine, widely used in various light aircraft and trainers [37].
  • Argus As 12 16H, a 550 hp engine [37].
  • Argus As 16, a 4-cylinder horizontally opposed engine producing 35 hp [39].
  • The Argus As 17.
  • The infamous Argus As 014 (also known as "Argus 109-014"), the pulse jet engine that powered the German V-1 flying bomb, known for its distinctive "buzz" and its use in the Tornado boat. A simple, yet terrifyingly effective, early jet.
  • Argus As 044 [37].
  • Argus As 16, a 4-cylinder inverted inline engine producing 40 hp [37].
  • The Argus As 17, a 6-cylinder inverted inline engine, available in 225 hp and 285 hp versions [37].
  • The Argus As 401, a development and renumbering of the successful As 10.
  • Argus As 402 [37].
  • The Argus As 410, a powerful 12-cylinder inverted V-engine, used in later German aircraft [37].
  • The Argus As 411, a further development of the 410, providing enhanced power [37].
  • Argus As 412, an ambitious 24-cylinder H-block engine that reached prototype stage [37].
  • Argus As 413 – a similar design to the 412, but never built [37].
  • The Argus 109-044 [37], another designation for their pulse jet.
  • The Argus 115 hp 6-cylinder upright inline, with 130 mm × 130 mm (5.1 in × 5.1 in) cylinders [11].
  • The Argus 130 hp 6-cylinder upright inline, also with 130 mm × 130 mm (5.1 in × 5.1 in) cylinders [11].
  • The Argus 145 hp 6-cylinder upright inline, with 140 mm × 140 mm (5.5 in × 5.5 in) cylinders [11].
  • Argus 190 hp 6-cylinder upright inline, with 150 mm × 145 mm (5.9 in × 5.7 in) cylinders [11].

Argus Motoren's legacy is firmly rooted in reliable inline piston engines, which were essential to German aviation from its earliest days through World War II, and even in their foray into jet propulsion.

Argylls

Main article: Argyll (car)

Argyll (car), a Scottish automobile manufacturer, also ventured into the realm of aircraft engines, a common diversification for car companies in the early 20th century.

Their listed contribution:

  • The Argyll aircraft engine. A concise entry that hints at their brief but notable participation in early aero engine development.

Armstrong Siddeley

Armstrong Siddeley was a formidable British engineering company, formed by the acquisition of Siddeley-Deasy in 1919. They became renowned for producing a wide range of innovative piston, turboprop, turbojet, and rocket engines, often characterized by their distinctive radial designs and animal-themed names.

An Armstrong Siddeley Tiger engine, a powerful 14-cylinder radial, on display at the London Science Museum.

Their impressive array of piston engines [3] included:

Their venture into gas turbines showcased their adaptability to new propulsion technologies:

Their bold exploration of rocket engines [14] was equally impressive:

Armstrong Siddeley's legacy is one of remarkable engineering diversity, from multi-cylinder piston engines to cutting-edge jet and rocket propulsion, contributing profoundly to British aerospace.

Armstrong Whitworth

Main article: Armstrong Whitworth

Armstrong Whitworth, a major British industrial firm involved in shipbuilding, armaments, and aircraft manufacturing, also contributed to engine design, particularly during the World War I era. Their efforts reflected the demand for powerful and reliable engines for military aircraft.

Their listed engine:

  • The Armstrong Whitworth 1918 30° V-12 [11] [2]. A V-12 engine with a distinctive 30° bank angle, indicating a design focused on specific packaging or balance characteristics, a powerful unit for late-war aircraft.

Arrow SNC

Main article: Arrow SNC

Arrow SNC, a manufacturer known for its range of compact and lightweight engines, often found in ultralight aircraft and other experimental designs. Their straightforward numerical designations indicate a clear progression in power and design.

Their engine lineup includes:

These engines provide reliable power solutions for the lighter end of the aviation spectrum, catering to the needs of recreational and experimental flyers.

Arsenal

Main article: Arsenal de l'Aéronautique

Source: Gunston [14]

The Arsenal de l'Aéronautique, a French state-owned aircraft and engine manufacturer, was known for its ambitious and often powerful designs, particularly during and after World War II. Their engines were characterized by their complexity and high performance, often featuring unique configurations.

Their formidable engines included:

  • The Arsenal 213
  • The Arsenal 12H, an H-block engine, a complex but compact configuration.
  • The Arsenal 12H-Tandem, an even more intricate arrangement of two 12H engines in tandem.
  • The Arsenal 12K
  • The Arsenal 24H, a massive 24-cylinder H-block engine, designed for exceptional power output.
  • The Arsenal 24H-Tandem, a super-complex arrangement of two 24H engines, pushing the boundaries of piston engine design.

These engines represent a period of intense innovation and a pursuit of extreme power in French aviation.

Asahina

Asahina, a Japanese manufacturer, contributed a specific rotary engine design:

  • The Asahina 9-cylinder 100 hp rotary [2]. Rotary engines, while having their peculiarities, offered a smooth power delivery and good power-to-weight ratio for early aircraft.

Ashmusen

(Ashmusen Manufacturing Company)

The Ashmusen Manufacturing Company produced a couple of horizontally opposed engines, a configuration favored for its smooth operation and compactness.

Their engines included:

  • The Ashmusen 1908 60 hp 8HOA [2]. A relatively powerful 8-cylinder horizontally opposed engine for its time.
  • The Ashmusen 1908 105 hp 12HOA [11] [2]. An even more powerful 12-cylinder horizontally opposed engine, a significant achievement for early aviation.

These designs highlight the exploration of various cylinder arrangements in the quest for optimal aircraft power.

Aspin

(F.M. Aspin & Company)

F.M. Aspin & Company, under the name Aspin, contributed a unique horizontally opposed engine, showcasing a departure from conventional designs.

Their engine:

  • The Aspin Flat-Four [36]. A four-cylinder horizontally opposed engine, a common layout, but Aspin was known for its distinctive rotary valve designs, which offered potential advantages in efficiency and performance.

Aster

Aster, a name that evokes stars and celestial bodies, contributed an inline engine:

  • The Aster 51 hp 4-cylinder-line [18] [2]. A four-cylinder inline engine, a simple and reliable configuration for early aircraft.

Astrodyne

(Astrodyne Inc.)

Astrodyne Inc. focused on rocket propulsion, contributing specialized units for various applications, often in the realm of military systems.

Their rocket engines included:

  • Astrodyne 16NS-1000 [21].
  • Astrodyne XM-34 (ZELL booster) [21]. ZELL (Zero-length Launch) systems provided a rapid, unassisted takeoff for aircraft, relying on powerful rocket boosters.

These units highlight Astrodyne's role in specialized rocket propulsion for military and experimental purposes.

ATAR

(Atelier Technique Aéronautique de Rickenbach – pre SNECMA take-over)

ATAR, or Atelier Technique Aéronautique de Rickenbach, was a French design bureau that laid the groundwork for many of SNECMA's later jet engines. Their work was foundational in developing indigenous French jet propulsion capabilities.

Their pioneering turbojet engines included:

  • The ATAR 101, an early axial-flow turbojet that became the basis for a significant family of French jet engines.
  • ATAR 103
  • ATAR 104 (Vulcain)
  • ATAR 201
  • ATAR 202
  • ATAR 203

These engines were critical in establishing France's independent jet engine industry, powering many of its early jet aircraft.

Atwood

(Atwood Aeronautic Company, Williamsport, PA / Harry N. Atwood)

The Atwood Aeronautic Company, founded by the pioneering aviator Harry N. Atwood, produced a range of V-type engines, aiming for powerful and relatively compact designs for aircraft.

Their engines included:

  • The Atwood 120-180 hp V-12, with a bore and stroke of 3.5 in × 4.5 in (89 mm × 114 mm) [2] [40]. A powerful V-12, offering a range of outputs.
  • Atwood M-1 (1916)
  • Atwood M-2 (1916)
  • Atwood Twin Six, likely a V-12 or similar 12-cylinder configuration.

Atwood's engines contributed to the growing demand for higher power in early American aviation.

Aubier & Dunne

Data from: Italian Civil & Military Aircraft 1930–1945 [17]

Aubier & Dunne, a manufacturer with a distinctive name, contributed engines to various aircraft, including some Italian designs. Their offerings ranged from compact twins to more complex V-configurations.

Their engines included:

  • An Aubier & Dunne 2-cylinder engine, producing 17 hp [15]. A small, lightweight engine for very light aircraft.
  • An Aubier & Dunne 3-cylinder engine [15].
  • The Aubier-Dunne V.2D, likely a V-twin diesel engine, indicating an interest in fuel efficiency and alternative fuels.

Austin

Main article: Austin Motor Company

Austin Motor Company, a major British automotive manufacturer, also ventured into aircraft engine production, particularly during the periods of wartime demand. Their contributions included both conventional and more experimental designs.

Their listed engines:

  • The Austin V-12 [2]. A powerful V-12 engine, suitable for large aircraft.
  • The Austin rotary engine [2]. A rotary engine, indicating their exploration of different, and sometimes quirky, early propulsion concepts.

Austin's involvement showcased the broader industrial effort to support aviation development.

Austro-Daimler

Main article: Austro-Daimler

Source: Gunston [14]

Austro-Daimler, the Austrian branch of the Daimler automotive empire, became a critical supplier of aircraft engines to the Austro-Hungarian air forces during World War I. Their inline-six engines were known for their robust construction and reliability, powering many of the Central Powers' aircraft.

Their extensive and influential engine lineup included:

  • The Austro-Daimler 35-40 hp 4-cylinder engine, with 100 mm × 120 mm (3.94 in × 4.72 in) cylinders [2] [4]. A foundational four-cylinder.
  • The Austro-Daimler 65-70 hp 4-cylinder, with 120 mm × 140 mm (4.72 in × 5.51 in) cylinders [2] [4].
  • The Austro-Daimler 90hp 6-cylinder, a significant inline-six with 120 mm × 140 mm (4.72 in × 5.51 in) cylinders [2]. This was a widely used engine.
  • The Austro-Daimler 120hp 6-cylinder, offering more power with 130 mm × 175 mm (5.12 in × 6.89 in) cylinders [2] [4].
  • The Austro-Daimler 160hp 6-cylinder.
  • The Austro-Daimler 185hp 6-cylinder.
  • The Austro-Daimler 200hp 6-cylinder, a powerful inline-six with 135 mm × 175 mm (5.31 in × 6.89 in) cylinders [2] [11].
  • The Austro-Daimler 210hp 6-cylinder.
  • The Austro-Daimler 225hp 6-cylinder.
  • The Austro-Daimler 300 hp V-12. A more complex and powerful V-engine.
  • The Austro-Daimler 360 hp 6-cylinder, a very high-output inline-six with 130 mm × 175 mm (5.12 in × 6.89 in) cylinders [2].
  • The Austro-Daimler 400 hp V-12, a powerful V-engine with 130 mm × 175 mm (5.12 in × 6.89 in) cylinders [2].
  • The Austro-Daimler D-35, another 400 hp V-12 with 130 mm × 175 mm (5.12 in × 6.89 in) cylinders [2].

Austro-Daimler's engines were pivotal in World War I, demonstrating the effectiveness of robust, liquid-cooled inline designs for military aviation.

Austro Engine

Main article: Austro Engine

Austro Engine, an Austrian company, has focused on developing modern, fuel-efficient aircraft engines, particularly diesels, which offer advantages in fuel consumption and operating costs. Their engines are designed for contemporary general aviation aircraft.

Their notable engine lineup includes:

Austro Engine's diesel powerplants represent a significant step towards more economical and environmentally friendly general aviation.

Auto Diesels

Auto Diesels, as their name suggests, specialized in diesel engines, often for ground support equipment or specialized industrial applications, including those related to aircraft. Their focus was on robust, reliable, and fuel-efficient power.

Their range of products included:

  • Auto Diesels STAD A250 [41]
  • Auto Diesels STAD A260 [41]
  • Auto Diesels LPI Mk.12A/L [41]
  • Auto Diesels LPI Mk.12A/T [41]
  • Auto Diesels LPI Mk.12A/D [41]
  • Auto Diesels GT15 [41], likely a gas turbine.
  • Auto Diesels 7660.001.020 [41]

These entries suggest a company deeply involved in diesel and small turbine power for various industrial and aviation support roles.

Ava

(L'Agence General des Moteurs Ava)

L'Agence General des Moteurs Ava, a French firm, contributed a distinctive engine design:

  • The Ava 4A. This designation suggests a 4-cylinder engine, likely an inline or opposed configuration, contributing to the diversity of French engine manufacturers.

Avco Lycoming

See: Lycoming

Avco Lycoming, a name that once dominated general aviation, is now simply known as Lycoming. Their legacy is one of immensely successful and reliable horizontally opposed piston engines.

Avia Motors

Main article: Avia Motors

Avia Motors, a Czech company, has a complex history, with its engine division (Avia Wytwórnia Maszyn Precyzyjnych) producing a range of both original designs and licensed powerplants. Their engines often served in Eastern European aircraft.

Avia Wytwórnia Maszyn Precyzyjnych (Avia Precision Machine Works)

  • Avia 3 [36] [42]
  • The Avia Vr-30
  • Avia Vr-36
  • Avia WZ-7 [10]
  • Avia WZ-100 [10]

Avia Akciova Spolecnost pro Prumysel Letecky (Avia Joint Stock Company for the Aviation Industry)

  • The Avia Rk.12, a radial engine.
  • The Avia Rk.17, another radial.
  • Avia Rkr.18
  • Avia L [43]
  • Avia DFTr [43]
  • Avia R.7 [43]
  • Avia R.10 [43]
  • Avia DR.14 [43]
  • Avia DR.20 [43]
  • Avia Rr.29 [43]
  • Avia Vr.30
  • The Avia Vr.36
  • Avia W.44
  • Avia Wr.44

Avia Narodny Podnik (Avia National Enterprise)

Avia's engine production spanned several decades, from early radial and inline designs to more modern inverted inline engines, playing a key role in Czech and Eastern European aviation.

Aviadvigatel

Main article: Aviadvigatel

Aviadvigatel, a leading Russian aircraft engine design and manufacturing company, is known for its powerful turbofan and turboprop engines that power a wide range of Russian airliners and military aircraft. Their designs are characterized by robustness and high thrust output.

Their notable engines include:

  • The Aviadvigatel PD-14, a modern turbofan engine designed for the Irkut MC-21 airliner, representing Russia's latest generation of commercial aircraft propulsion.
  • The Aviadvigatel PS-90, a widely used turbofan engine powering many Russian airliners, including the Il-96 and Tu-204/214.

Aviadvigatel continues to be a central player in Russian aerospace, providing critical powerplants for both civilian and military applications.

Aviatik

Argus engines sold in France under the brand name 'Aviatik' by Automobil und Aviatik AG [46]

Aviatik, a German aircraft manufacturer, also served as a distributor for Argus engines in France, rebranding them under their own name. This was a common practice to market foreign designs in different countries.

Their re-branded Argus engines included:

These engines, though German in origin, played a role in the early French aviation market under the Aviatik name.

A.V. Roe

Main article: Alliott Verdon Roe

Alliott Verdon Roe, a British aviation pioneer and founder of Avro, also dabbled in engine design in the very early days of flight. His efforts were part of the broader experimentation to find suitable powerplants for his innovative aircraft.

His listed engine:

  • The A.V. Roe 20 hp 2-cylinder [3]. A small, two-cylinder engine, typical of the modest power required for the very first flying machines.

Avro

Main article: Avro

Avro, one of Britain's most iconic aircraft manufacturers, also had a hand in engine development, particularly in the very early days of aviation. While later known for their airframes, their initial forays into engines were part of a holistic approach to building flying machines.

Their early engine contribution:

  • The Avro Alpha [3]. A simple designation for what was likely an early, modest engine, reflecting the nascent stage of aircraft propulsion.

Avro Canada

Main article: Avro Canada

Avro Canada was a highly ambitious Canadian aerospace company that, despite its eventual demise, produced some truly groundbreaking jet engine designs. Their efforts represented a significant push for indigenous Canadian aviation technology, aiming to compete with the world's leading manufacturers.

Their pioneering jet engines included:

  • The Avro Chinook, Canada's first jet engine, a centrifugal-flow turbojet that was a crucial learning step in jet propulsion.
  • The powerful Avro Iroquois, a large and advanced axial-flow turbojet designed for the Avro Arrow interceptor, a truly cutting-edge powerplant for its time.
  • The Avro Orenda, a successful axial-flow turbojet that powered the Avro CF-100 Canuck and Canadair Sabre, becoming Canada's first production jet engine.
  • Avro P.35 Waconda [47].

Avro Canada's engine designs, particularly the Iroquois, demonstrated remarkable engineering ambition and capability, even if their ultimate fate was tied to the political decisions surrounding the Avro Arrow.

Axelson

Main article: Axelson (company)

Axelson (company), an American company with a background in oilfield equipment, also produced radial aircraft engines. Their entry into aviation reflected a broader industrial capacity to meet the demands for reliable powerplants.

Their radial engines included:

  • The Axelson A-7-R, a 115 hp seven-cylinder radial [48].
  • The Axelson-Floco B, a 150 hp engine, likely a development or variant.

These engines were solid, if not revolutionary, contributors to the radial engine market.

Axial Vector Engine Corporation

The Axial Vector Engine Corporation focused on alternative engine designs, specifically the axial engine concept, which promises compactness and efficiency.

Their listed engine:

  • The Dyna-Cam. This refers to a type of axial engine that uses a cam mechanism to convert piston motion into rotary motion, a distinct departure from conventional crankshaft designs.

Aztatl

Aztatl, a name with a strong and ancient resonance, contributed several radial engine designs, exploring different cylinder counts to achieve varying power outputs.

Their radial engines included:

  • An Aztatl 3-cylinder radial [2]. A compact radial.
  • An Aztatl 6-cylinder 80 hp radial [2] [49]. A more powerful six-cylinder design.
  • An Aztatl 10-cylinder radial [2]. A larger, higher-power radial.

These engines were part of the broader effort to develop reliable and powerful radial powerplants for aircraft.

B

Bailey

Bailey, a straightforward name, contributed a specific radial engine:

  • The Bailey C-7-R "Bull's Eye" from 1927, which produced 140 hp from a 7-cylinder radial configuration. A catchy name for an engine, implying precision and a bullseye hit on performance.

Bailey Aviation

Main article: Bailey Aviation

Bailey Aviation, a British company, specializes in engines for paramotors and other very light aircraft. Their focus is on compact, lightweight, and reliable powerplants for recreational aviation.

Their engine lineup includes:

These engines are tailored for the specific demands of paramotoring, where low weight and ease of operation are paramount.

Baradat–Esteve

(Claudio Baradat Guillé & Carlos Esteve)

The collaboration between Claudio Baradat Guillé and Carlos Esteve led to a fascinating, albeit unconventional, engine design:

  • The Baradat toroidal engine [1]. Toroidal engines are a class of rotary internal combustion engines where the combustion chambers are arranged in a torus shape. These designs are often highly experimental, promising unique advantages in compactness or power delivery, but often facing significant engineering challenges.

Basse und Selve

Main article: Basse und Selve

Basse und Selve, a German engineering firm, produced a range of inline aircraft engines that saw use during World War I. Their designs were characterized by their robust construction and relatively high power output for their time.

Their engines included:

  • The Basse und Selve BuS. 120 hp engine, with cylinders measuring 125 mm × 160 mm (4.9 in × 6.3 in), offering 120-130 hp [2].
  • The Basse und Selve BuS.III, a 150 hp engine.
  • The Basse und Selve BuS.IV, a more powerful unit with cylinder dimensions of 160 mm × 200 mm (6.3 in × 7.9 in) or 155 mm × 200 mm (6.1 in × 7.9 in), producing 260 hp to 270 hp [2].
  • The Basse und Selve BuS.IVa, an even more potent version delivering 300 hp [11].

These inline engines were significant contributors to German aviation during the Great War, providing reliable power for various aircraft types.

Bates

Main article: [Carl S.