A  [ 1]  
Abadal Y-12 350/400  hp 120   mm ×   140   mm (4.7   in ×   5.5   in)  [ 2]   ABLE Source: RMV , Able Experimental Aircraft Engine Co. [ 6]    (Able Experimental Aircraft Engine Co., Altimizer, Hoverhawk (US))
ABLE 2275 ABLE 2500 ABLE VW x 2 Geared Drive Accurate Automation Corp Accurate Automation AT-1500 Accurate Automation AT-1700 Ace (Ace American Engr Corp, Horace Keane Aeroplane Co, North Beach, Long Island NY.)
ACE (American Cirrus Engine Inc) Source: RMV  [ 1]   [ 7]  
ACT (Aircraft Cylinder and Turbine Co) Source: RMV  [ 1]  
Adams Source: RMV  [ 1]  
Adams (UK) 4 Cylinder in-line of 140 HP Adams (UK) 8 V Adams-Dorman Source: RMV  [ 1]  
Adams-Farwell The Adams Company, Dubuque, Iowa / F.O. Farwell, engines for gyrocopters [ 1]  
Adams-Farwell 36  hp 5-cyl rotary engine 4.25   in ×   3.25   in (108   mm ×   83   mm)  [ 2]   [ 4]   [ 7]   Adams-Farwell 50 HP [ 7]   Adams-Farwell 55  hp 5-cyl rotary 5.25   in ×   5   in (133   mm ×   127   mm)  [ 2]   [ 7]   Adams-Farwell 63  hp 5-cyl rotary 5.625   in ×   5   in (142.9   mm ×   127.0   mm)  [ 2]   [ 4]   [ 7]   Adams-Farwell 72  hp 5-cyl rotary 6   in ×   6   in (150   mm ×   150   mm)  [ 2]   [ 4]   [ 7]   Adams-Farwell 280  hp 6cyl double rotary 6   in ×   6   in (150   mm ×   150   mm)  [ 2]   [ 7]   Adams-Farwell 6-cyl double rotary 5   in ×   5   in (130   mm ×   130   mm)  [ 2]   Adams-Farwell 10-cyl double rotary 5   in ×   5   in (130   mm ×   130   mm)  [ 2]   Adams-Farwell 14-cyl double rotary 5   in ×   5   in (130   mm ×   130   mm)  [ 2]   Adams-Farwell 18-cyl double rotary 5   in ×   5   in (130   mm ×   130   mm)  [ 2]   Adams-Farwell KM 11 [ 7]   ADC  ADC  (from "Aircraft Disposal Company") [ 3]   bought 35,000 war-surplus engines in 1920. Initially produced engines from Renault 70 hp  spares.
  ADC Cirrus    Adept-Airmotive Source: RMV  [ 1]  
Ader Source: RMV  [ 1]  
Ader Eole engine (Vapour) Ader Avion engine (Vapour) Ader 2V Ader 4V Adler Source: RMV  [ 1]  
Adler 50  hp 4-cyl in-line 100   mm ×   125   mm (3.9   in ×   4.9   in)  [ 2]   Adler 100  hp 6-cyl in-line 115   mm ×   135   mm (4.5   in ×   5.3   in)  [ 2]   Adler 222  hp V-8 116   mm ×   160   mm (4.6   in ×   6.3   in)  [ 2]   Source: RMV  [ 1]  
Advance Engines Source: RMV  [ 1]  
Advanced Engine Design Source: RMV  [ 1]  
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) 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) AEADC (Aircraft Engine & Accessory Development Corporation) Source: RMV  [ 1]  
AEADC Gryphon M [ 7]   AEADC Gryphon N [ 7]   AEADC O-510 (Gryphon M) [ 7]   AEADC O-810 (Gryphon N) [ 7]   Aeolus Flugmotor Source: RMV  [ 1]  
Aerien CC Source: RMV  [ 1]  
Aerien 20/25 HP Aerien 30 HP Aero Adventure Source: RMV  [ 1]  
Aero Development Source: RMV  [ 1]   (See SPEER)
Aero Engines Ltd. (formerly William Douglas (Bristol) Ltd.) 
Aero Engines Dryad [ 3]   Aero Engines Pixie [ 3]   Aero Engines Sprite [ 3]   Aero Engines inverted V-4 [ 1]   Aero Engines inverted V-6 [ 1]   Douglas 750cc Aero Motion Source: RMV  [ 1]  
Aero Motion 0-100 Aero Motion 0-101 Aero Motors Source: RMV  [ 1]  
Aero Motors Aerobat 150 HP Aero Pixie Source: RMV  [ 1]  
Aero Prag Source: RMV  [ 1]  
Aeroprag KT-422 Aeroprag AP-45 Aeroprag TP-422 Aero Products (Aero Products Aeronautical Products Corp, Naugatuck CT.) Source: RMV  [ 1]  
Aero Products Scorpion 100 HP Aero Sled Source: RMV  [ 1]  
Aero Sled Twin Flat, 20 HP Aero Sport International Source: RMV  [ 1]  
Aero Sport International Wade Aero (WANKEL) 2 Types AeroTwin Motors Corporation Aerojet  Aerojet  produced rocket engines for missiles. It merged with Pratt & Whitney Rocketdyne .
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)  Aerojet LR87    Aerojet LR91   Aerojet-General SR19 (Aerojet Minuteman 2nd stage motor) 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]   Aerojet 15KS-1000 [ 10]   RATO unit Aerojet 15NS-250 [ 10]   Aerojet 30AS-1000C – RATO unit [ 8]   Aerojet 2.2KS-11000 [ 9]   Aerojet AJ10   [ 8]   Aerojet AJ-260  – largest solid-rocket motor ever built  Aerojet M-1   Aerojet Hawk motor [ 10]   (for Hawk SAM ) Aerojet Polaris motor Aerojet Senior [ 10]   Aeromarine Company Source: RMV  [ 1]  
Aeromarine Company D5-1 (Pulse-Jet) Aeromax Source: RMV  [ 1]  
Aeromax 100 I-F-B Aeromax 100 L-D Aeromotor (Detroit Aeromotor. Const. Co) Source: RMV  [ 1]  
Aeromotor 30  hp 4-cyl in-line [ 2]   Aeromotor 75  hp 6-cyl in-line [ 2]   Aeronautical Engineering Co. Source: RMV  [ 1]  
Aeronautical Engineering 9-cyl radial 200 HP Aeroplane Motors Company (Aeroplane Motors) Source: RMV  [ 1]  
Aeroplane 59  hp V-8 3.98   in ×   4.72   in (101   mm ×   120   mm)  [ 2]   Aeroprotech Source: RMV  [ 1]  
Aerosila Source: RMV  [ 1]  
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 Aerotech engines Source: RMV  [ 1]  
Aerotech-PL Source: RMV  [ 1]  
Aerotech-PL EA81, Subaru conversion Aerotech-PL VW conversion Aerotech-PL BMW conversion Aerotech-PL Suzuki conversion Aerotech-PL Guzzi conversion Aerotechnik Source: RMV  [ 1]  
Aerotechnik Tatra-100 Aerotechnik Tatra-102 Aerotechnik Hirth (Lic)  Aerotechnik Mikron  (Lic) Aerotechnik Tatra-714 (VW) Aerotek Source: RMV  [ 1]  
Aerotek Mazda RX-7 (conversion) Affordable Turbine Power Source: RMV  [ 1]  
Affordable Turbine Power Model 6.5 AFR Source: RMV  [ 1]  
AFR BMW Conversion AFR R 100 70/80  hp AFR R 1100D 90/100  hp AFR R 1100S 98  hp AFR R 1150RT 95  hp AFR R 1200GS 100  hp Agilis (Agilis Engines) Sources: RMV  [ 1]   [ 12]   [ 13]  
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 Ahrbecker Son and Hankers Source: RMV  [ 1]  
Ahrbecker Son and Hankers 10 HP Ahrbecker Son and Hankers 20 HP Ahrbecker Son and Hankers 1 Cylinder – vapor AIC (Aviation Ind. China. See Catic and Carec) [ 1]  
Aichi  A preserved Aichi Atsuta  Source: Gunston 1989 [ 14]   except where noted.
AICTA (AICTA Design Work, Prague, Czech Republic)
Aile Volante Aile Volante C.C.2 [ 15]   Aile Volante C.C.4 [ 16]   Air Repair Incorporated Source: RMV  [ 1]   (Jacobs Licence)
(Jacobs-Page Licence)
Air Ryder Source: RMV  [ 1]  
Air Ryder Subaru EA-81 (Conversion) Air Technical Arsenal Source: RMV  [ 1]  
Air Technical Arsenal TSU-11 Air Technical Arsenal TR-30 Air-Craft Engine Corp Source: RMV  [ 1]  
Air-Craft Engine Corp LA-1 Aircat (Detroit Aircraft Eng. Corp.) Source: RMV  [ 1]  
Aircat Radial 5 cylinders Aircraft Engine Co (Aircraft Engine Co Inc, Oakland, CA)
(See Schubert)
Airship Aircraft Engine Company Airship A-Tech 100 Diesel [ 1]   Airtrike (AirTrike GmbH i.L., Berlin, Germany)
Aixro Source: RMV  [ 1]  
 Aixro XF-40   Aixro XH-40 Aixro XP-40 Aixro XR-30 Aixro XR-40 Aixro XR-50 Ajax Source: RMV  [ 1]  
Ajax 7-cyl rotary Ajax 6-cyl radial (2 rows of 3 cyls.), 80 HP Akkerman Akkerman Model 235 30 HP, special fuel [ 1]   Albatross (Albatross Co Detroit)
Albatross 50  hp 6-cyl radial 4.5   in ×   5   in (110   mm ×   130   mm)  [ 1]   [ 2]   Albatross 100  hp 6-cyl radial 5.5   in ×   5   in (140   mm ×   130   mm)  [ 1]   [ 2]   Alexander Alexander 4-cyl [ 1]   Alexanderradial 5-cyl [ 1]   Alfa Romeo Societa per Azioni Alfa Romeo  [ 17]  
Alliance (Aubrey W. Hess/Alliance Aircraft Corporation)
Allied Allied Monsoon Licensed manufacturer of French Règnier 4L Allis-Chalmers Source:  Gunston [ 14]  
Alvaston Alvaston 20  hp 2-cyl opposed 114   mm ×   114   mm (4.5   in ×   4.5   in)  [ 2]   [ 23]   Alvaston 30  hp 2-cyl opposed 132   mm ×   127   mm (5.2   in ×   5.0   in)  [ 2]   [ 23]   Alvaston 50  hp 4-cyl opposed 144   mm ×   128   mm (5.7   in ×   5.0   in)  [ 2]   [ 23]   American Cirrus Engine See: ACE   
American Engineering Corporation Source: RMV  [ 1]  
American Helicopter American Helicopter PJ49 Pulsejet   American Helicopter XPJ49-AH-3 American 1911 rotary American S-5 radial AMCEL (AMCEL Propulsion Company)
AMCEL controllable solid fuel rocket [ 10]   AMI (AeroMotion Inc.)
AeroMotion Twin [ 24]   AeroMotion O-100 Twin AeroMotion O-101 Twin AMT Netherlands (Aviation Microjet Technology)
AMT USA (AMT USA, LLC, Cincinnati)
A.M.U.A.L (Établissement A.M.U.A.L)
A.M.U.A.L M.J.5 65° V-8 350  hp 150   mm ×   200   mm (5.9   in ×   7.9   in)  [ 2]   A.M.U.A.L M.J.6 90° V-8 400  hp 150   mm ×   200   mm (5.9   in ×   7.9   in)  [ 2]   A.M.U.A.L M.J.7 90° V-8 600  hp 180   mm ×   210   mm (7.1   in ×   8.3   in)  [ 2]   Ansaldo Ansaldo San Giorgio 4E-145 6I 300  hp [ 2]   [ 29]   Ansaldo San Giorgio 4E-150 6I 300  hp [ 2]   [ 29]   Ansaldo San Giorgio 4E-284 V-12 450  hp [ 2]   [ 29]   Ansaldo San Giorgio 4E-290 V-12 550  hp [ 2]   [ 29]   Antoinette Source: Gunston [ 14]   [ 18]  
Antoinette 32  hp V-8 80   mm ×   80   mm (3.1   in ×   3.1   in)  [ 2]   Antoinette 46  hp? Antoinette 64  hp V-16 80   mm ×   80   mm (3.1   in ×   3.1   in)  [ 2]    Antoinette 67hp V-8  110   mm ×   105   mm (4.3   in ×   4.1   in)  Antoinette 165  hp V-16 Antoinette 134  hp V-8 110   mm ×   105   mm (4.3   in ×   4.1   in)  [ 2]   Antoinette 55  hp V-8 [ 2]   Antoinette V-32 [ 2]   Anzani For British Anzani products see: British Anzani   
Source:  [ 14]   [ 18]   [ 30]  
 Anzani 6  Air-cooled Anzani engines 
Anzani V-2 [ 31]    Anzani 3-cylinder fan engines  Anzani 14  hp  85  mm ×  85  mm (3.3  in ×  3.3  in) [ 31]   Anzani 15  hp  85  mm ×  100  mm (3.3  in ×  3.9  in) [ 31]   Anzani 24.5  hp  105  mm ×  130  mm (4.1  in ×  5.1  in) [ 31]   Anzani 31.6  hp  120  mm ×  130  mm (4.7  in ×  5.1  in) [ 31]   Anzani 42.3  hp  135  mm ×  150  mm (5.3  in ×  5.9  in) [ 31]   Anzani 10-12  hp  85  mm ×  85  mm (3.3  in ×  3.3  in) Anzani 12-15  hp  85  mm ×  100  mm (3.3  in ×  3.9  in) Anzani 25-30  hp  105  mm ×  130  mm (4.1  in ×  5.1  in) Anzani 30-35  hp  120  mm ×  130  mm (4.7  in ×  5.1  in) Anzani 40-45  hp  135  mm ×  150  mm (5.3  in ×  5.9  in) Anzani 45-50  hp [ 31]     Anzani 30hp 3-cyl radial  105  mm ×  120  mm (4.1  in ×  4.7  in) [ 31]   Anzani 45  hp 5-cyl radial [ 31]   Anzani 60  hp 5-cyl radial  Anzani 6-cylinder  Anzani 40-45  hp radial 90  mm ×  120  mm (3.5  in ×  4.7  in) [ 31]   Anzani 50-60  hp radial 105  mm ×  120  mm (4.1  in ×  4.7  in) [ 31]   Anzani 70  hp radial 105  mm ×  120  mm (4.1  in ×  4.7  in) Anzani 80  hp radial 115  mm ×  140  mm (4.5  in ×  5.5  in) [ 32]    Anzani 95  hp 7-cyl radial  Anzani 10-cylinder  Anzani 60-70  hp radial 90  mm ×  120  mm (3.5  in ×  4.7  in) [ 31]   Anzani 100-110  hp radial 105  mm ×  140  mm (4.1  in ×  5.5  in) [ 31]   Anzani 95-100  hp radial 105  mm ×  145  mm (4.1  in ×  5.7  in) [ 31]   Anzani 125  hp radial 115  mm ×  150  mm (4.5  in ×  5.9  in) [ 31]   Anzani 125  hp radial 115  mm ×  155  mm (4.5  in ×  6.1  in) [ 31]   Anzani 200  hp radial [ 31]    Anzani 100  hp 14-cyl radial 105  mm ×  140  mm (4.1  in ×  5.5  in) [ 31]   Anzani 150-160  hp 14-cyl radial 90  mm ×  120  mm (3.5  in ×  4.7  in) [ 32]    Anzani 20  200  hp 20-cyl radial 105  mm ×  140  mm (4.1  in ×  5.5  in) [ 33]   Water-cooled Anzani engines 
Anzani 30-32  hp V-4 100   mm ×   120   mm (3.9   in ×   4.7   in)  [ 31]   Anzani 56-70  hp V-4 135   mm ×   150   mm (5.3   in ×   5.9   in)  [ 31]   Anzani 600-700  hp 20-cyl radial 140   mm ×   150   mm (5.5   in ×   5.9   in)  [ 31]   In-line radial 10 banks of 2 cylinders [ 34]   [ 35]   Anzani W-6 [ 31]   Anzani 6A3 (6-cyl radial 60  hp) ARDEM (Avions Roger Druine Engines M)
Argus Motoren Source:Gunston [ 14]   except where noted 
 Argus Type I  ("50hp") – 4-cyl. 50-70  hp 4.88  in ×  5.12  in (124  mm ×  130  mm)) [ 2]   [ 37]   Argus Type II (4-cyl. 100  hp 5.51  in ×  5.51  in (140  mm ×  140  mm)) [ 2]    Argus Type III  (aka Argus 110  hp) – 6-cyl 4.88  in ×  5.12  in (124  mm ×  130  mm))  Argus Type IV  (aka 140/150  hp) – 4-cyl. 140  hp 6.1  in ×  6.5  in (150  mm ×  170  mm)) [ 2]   Argus Type V (6-cyl. 140  hp 5.51  in ×  5.51  in (140  mm ×  140  mm)) [ 2]   Argus Type VI (6-cyl. 140  hp 6.1  in ×  6.5  in (150  mm ×  170  mm)) [ 2]   Argus Type VII (6-cyl. 115-130  hp 5.12  in ×  5.12  in (130  mm ×  130  mm)) [ 2]   Argus Type VIII (6-cyl. 190  hp 5.91  in ×  5.7  in (150  mm ×  145  mm)) [ 2]    Argus As I  4-cylinder, 100-hp, year 1913  Argus As II , 6-cylinder, 120-hp, year 1914 [ 38]    Argus As III  6-cylinder upright inline  Argus As 5  24-cylinder in-line radial  (6 banks of four cylinders) Argus As VI 700  hp V-12 [ 35]   Argus As VIA [ 35]   Argus As 7 9R 700  hp [ 37]    Argus As 8  4-cylinder inverted inline [ 37]    Argus As 10  8-cylinder inverted V [ 37]   Argus As 12 16H 550  hp [ 37]   Argus As 16 4-cylinder horizontally opposed 35  hp [ 39]    Argus As 17    Argus As 014  (aka "Argus 109-014") – pulse jet engine  for V-1 flying bomb  and Tornado boat Argus As 044 [ 37]   Argus As 16 4-cylinder inverted inline 40  hp [ 37]    Argus As 17  6-cylinder inverted inline 225  hp / 285  hp [ 37]    Argus As 401  development and renumbering of the As 10 Argus As 402 [ 37]    Argus As 410  12-cylinder inverted V [ 37]    Argus As 411  12-cylinder inverted V [ 37]   Argus As 412 24-cylinder H-block, prototyped [ 37]   Argus As 413 – similar to 412, never built [ 37]    Argus 109-044   [ 37]    Argus 115 hp  6-cylinder upright inline 130  mm ×  130  mm (5.1  in ×  5.1  in) [ 11]    Argus 130 hp  6-cylinder upright inline 130  mm ×  130  mm (5.1  in ×  5.1  in) [ 11]    Argus 145 hp  6-cylinder upright inline 140  mm ×  140  mm (5.5  in ×  5.5  in) [ 11]   Argus 190  hp 6-cylinder upright inline 150  mm ×  145  mm (5.9  in ×  5.7  in) [ 11]   Armstrong Whitworth Armstrong Whitworth 1918 30° V-12 [ 11]   [ 2]   Arsenal Source: Gunston [ 14]  
Asahina Asahina 9-cyl 100  hp rotary [ 2]   Ashmusen (Ashmusen Manufacturing Company)
Ashmusen 1908 60  hp 8HOA [ 2]   Ashmusen 1908 105  hp 12HOA [ 11]   [ 2]   Aspin (F.M. Aspin & Company)
Aster Aster 51  hp 4-cylinder-line [ 18]   [ 2]   Astrodyne (Astrodyne Inc.)
Astrodyne 16NS-1000 [ 21]   Astrodyne XM-34 (ZELL  booster) [ 21]   ATAR (Atelier Technique Aéronautique de Rickenbach – pre SNECMA take-over)
 ATAR 101   ATAR 103 ATAR 104 (Vulcain) ATAR 201 ATAR 202 ATAR 203 Atwood (Atwood Aeronautic Company, Williamsport, PA / Harry N. Atwood )
Atwood 120-180  hp V-12 (3.5   in ×   4.5   in (89   mm ×   114   mm)  bore x stroke [ 2]   [ 40]   Atwood M-1 (1916) Atwood M-2 (1916) Atwood Twin Six Data from: Italian Civil & Military Aircraft 1930–1945 [ 17]  
Aubier & Dunne 2-cyl 17  hp [ 15]   Aubier & Dunne 3-cyl [ 15]   Aubier-Dunne V.2D Austin Austin V-12 [ 2]   Austin rotary engine [ 2]   Austro-Daimler Source: Gunston [ 14]  
Auto Diesels 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]   Auto Diesels 7660.001.020 [ 41]   Ava (L'Agence General des Moteurs Ava)
Avia Motors Avia Wytwórnia Maszyn Precyzjnych Avia Akciova Spolecnost pro Prumysel Letecky Avia Narodny Podnik 
A.V. Roe A.V. Roe 20  hp 2-cyl. [ 3]   Axelson Axelson A-7-R 115  hp [ 48]   Axelson-Floco B 150  hp Axial Vector Engine Corporation Aztatl Aztatl 3-cyl radial [ 2]   Aztatl 6-cyl 80  hp radial [ 2]   [ 49]   Aztatl 10-cyl radial [ 2]   B Bailey Bailey C-7-R "Bull's Eye" 1927 = 140  hp 7RA. (Claudio Baradat Guillé & Carlos Esteve)
Baradat toroidal engine [ 1]   Basse und Selve Basse und Selve BuS. 120  hp (125   mm ×   160   mm (4.9   in ×   6.3   in)  120-130  hp) [ 2]   Basse und Selve BuS.III 150  hp Basse und Selve BuS.IV (160   mm ×   200   mm (6.3   in ×   7.9   in)  / 155   mm ×   200   mm (6.1   in ×   7.9   in)  260  hp / 270  hp) [ 2]    Basse und Selve BuS.IVa  300  hp [ 11]   Bayerische (Bayerische Motoren Gesellschaft)
Bayerische 7-cyl 50  hp rotary [ 2]   Beardmore Source: Lumsden  [ 3]  
Construction Mécanique du Béarn/Société de Construction et d'Exploitation de Matériels et de Moteurs 
Beatty Beatty 40  hp 4-cyl.(4.375   in ×   4   in (111.1   mm ×   101.6   mm) ) [ 2]   Beatty 50  hp 4-cyl.(4.375   in ×   4.5   in (111.1   mm ×   114.3   mm) ) [ 2]   [ 3]   Beatty 60  hp 4-cyl. (geared 0.66:1 4.375   in ×   5   in (111.1   mm ×   127.0   mm) ) [ 2]   Beatty 80  hp 8-cyl. V-8 (4.375   in ×   4   in (111.1   mm ×   101.6   mm) ) [ 2]   [ 3]   Beck Beck 1910 toroidal engine [ 2]   Beck 35  hp 4cyl toroidal engine 80   mm ×   130   mm (3.1   in ×   5.1   in)  [ 32]   Beck 50  hp 4cyl toroidal engine 110   mm ×   130   mm (4.3   in ×   5.1   in)  [ 32]   Beck 75  hp 4cyl toroidal engine 120   mm ×   130   mm (4.7   in ×   5.1   in)  [ 32]   Beecher (B.L. Beecher Company, New Haven, Connecticut)
Berliner Berliner 6  hp rotary helicopter engine Bertin Bertin 50  hp X-4 [ 4]   Bertin 100  hp X-8 [ 4]   Beaussier (Moteurs Beaussier )
Blackburn Includes engines of Cirrus Engine Division of Blackburn Source: Lumsden  [ 3]  
Bliss (E.W. Bliss Company)
BMW Source: Gunston [ 14]   except where noted 
 BMW 801  Boeing Source:Pelletier [ 58]    except where noted 
Bonner (Aero Bonner Ltd.)
Bonner Super Sapphire [ 44]   Botali Botali Diesel – eight-cylinder air-cooled 118  hp [ 19]   Bramo Source: Gunston [ 14]   except where noted
Breguet-Bugatti  Breguet-Bugatti U.16   Breguet-Bugatti U.24 Breguet-Bugatti U.24bis Breguet-Bugatti Quadrimotor Type A Breguet-Bugatti Quadrimotor Type B Breguet-Bugatti H-32B Breitfeld & Danek Perun I 6-cylinder 170  hp Breitfeld & Danek Perun II 6-cylinder 276  hp Breitfeld & Danek BD-500 500  hp Breitfeld & Daněk Hiero IV Breitfeld & Daněk Hiero L Breitfeld & Daněk Hiero N Breese Breese 40  hp 3-cyl radial [ 2]   Breuer (Breuer Werke G.m.b.H. )
Brewer (Captain R.W.A. Brewer)
Brewer Type M Gryphon O-8 [ 42]   Brewer 250  hp O-12 [ 42]   Brewer 500  hp X-16 [ 42]   Division of Bristol Aeroplane Company  formed when Cosmos Engineering  was taken over in 1920. Became Bristol Aero Engines in 1956. Merged with Armstrong Siddeley in 1958 to form Bristol Siddeley. Sources:  Piston engines, Lumsden, [ 3]   gas turbine and rocket engines, Gunston. [ 14]  
  Bristol Pegasus  radial  Ramjets Bristol BE.25 [ 9]   Bristol BRJ.1 6in ramjet, Initial development model using Boeing combustor. Bristol BRJ.2 16in ramjet. Scaled up BRJ1 with Boeing combustor. Bristol BRJ.2/5 16in M2 ramjet. Used on early Red Duster. Known to the MoS as BT.1 Thor Bristol BRJ.3 16in M2 ramjet. Fitted with NGTE combustor and used on XRD. Rated at 100,000  lbf (440  kN) at M3, Ø = 16  in (41  cm) Bristol BRJ.4/1 16in M2 ramjet. Used on early Red Duster and Bloodhound I. Known to the MoS as BT.2 Thor Bristol BRJ.5/1 16in M2 ramjet. Used on Bloodhound II. Became BT.3 Thor Bristol BRJ.601 16in M3 ramjet. Tested on Bobbin. Bristol BRJ.701 23in M3 ramjet project study. Bristol BRJ.801 [ 21]   Bristol BRJ.801 18in M3 ramjet. Initial M3 ramjet developed for Stage 13 ⁄ 4 Blue Envoy . Bristol BRJ.811 18in M3 ramjet. M3 ramjet developed for Stage 13 ⁄ 4  Bristol BRJ.824 18in M3 ramjet. Cancelled with Blue Steel Mk2. British Anzani For French Anzani engines see: Anzani   
British Rotary British Rotary 100  hp 10-cyl. rotary [ 2]   Brooke (Brooke, Chicago)
Brooke 85  hp 10-cyl. rotary [ 2]   Brooke 24  hp 6-cyl. rotary [ 2]   Brooke Multi-X [ 2]   Brott (A. Brott, Denver, Colorado)
Brott 35  hp V-4 air-cooled [ 2]   Brott 45  hp V-4 water-cooled [ 2]   Brott 60  hp V-8 air-cooled [ 2]   Brownback (Brownback Motor Laboratories Inc.)
Brownback C-400 (Tiger 100) [ 43]   Bucherer Bucherer 2-cyl rotary [ 2]   Buchet Buchet 6 in-line [ 2]   Buchet 8-12  hp 3-cyl inline [ 60]   Buchet 24  hp 6-cyl radial 80   mm ×   80   mm (3.15   in ×   3.15   in)  [ 18]   [ 2]   Budworth (David Budworth Limited)
Budworth Puffin [ 61]   Budworth Brill [ 62]   [ 61]   Budworth Buzzard Bugatti  King Bugatti U-16  Burgess-White (W. Starling Burgess, Rollin H. White / Burgess Company of Marblehead, MA and White Company of Cleveland, OH)
Burlat  Share of the Société des Moteurs Rotatifs Burlat, issued 1. November 1911  (Société des Moteurs Rotatifs Burlat )
Burlat 8cyl. 35  hp rotary – 26   kW (35   hp)  at 1800  rpm, 95   mm ×   120   mm (3.74   in ×   4.72   in) . 85   kg (187   lb) . 6 500F [ 64]   [ 2]   [ 32]   Burlat 8cyl. 60  hp rotary – 45   kW (60   hp)  at 1800  rpm, 120   mm ×   120   mm (4.72   in ×   4.72   in) , 120   kg (264   lb) , 11000F [ 64]   [ 2]   [ 32]   Burla 8cyl. 75  hp rotary – 56   kW (75   hp)  at 1800  rpm, 120   mm ×   170   mm (4.72   in ×   6.69   in) , 140   kg (308   lb) , 11000F [ 64]   [ 2]   Burlat 16cyl. 120  hp rotary – 89   kW (120   hp) p at 1750  rpm, 120   mm ×   120   mm (4.72   in ×   4.72   in) , 225   kg (495   lb) , 22000 F [ 64]   [ 2]   [ 32]   C Caffort (Anciens Etablissements Caffort Frères )
Cal-Aero (Cal-aero Institute, California)
CAM (Canadian Airmotive Inc.)
Cameron (Cameron Aero Engine Division / Everett S. Cameron)
Cameron C4-I-E1 [ 5]   Cameron C6 [ 5]   Cameron C12 [ 5]   Campini Source:Gunston [ 14]   
CANSA (Fabbrica Italiana Automobili Torino  – Costruzioni Aeronautiche Novaresi S.A. )
Carden Aero Engines Source:Ord-Hume . [ 68]  
CAREC (China National Aero-Engine Corporation)
Centrum Centrum 150  hp 6-cyl radial [ 2]   Ceskoslovenska Zbrojovka Data from:  [ 18]  
Ceskoslovenska Zbrojovka ZOD 260-B 2-stroke radial diesel engine – 260  hp [ 19]   Chaise (Societe Anonyme Omnium Metallurgique et Industriel / Etablissements Chaise et Cie ) [ 69]  
Chamoy (M. Fernand Chamoy)
Chamberlin Chamberlin L-236 Chamberlin L-267 Changzhou (Changzhou Lan Xiang Machinery Works)
Charomskiy Source:Gunston [ 14]   
Chelomey  Chelomey D-3  Pulse-jet Chelomey D-5 Pulse-jet Chelomey D-6 Pulse-jet Chelomey D-7 Pulse-jet Chenu Chenu 50-65  hp 4-cyl DD 110   mm ×   190   mm (4.3   in ×   7.5   in)  [ 32]   [ 2]   Chenu 75  hp 6-cyl in-line 110   mm ×   190   mm (4.3   in ×   7.5   in)  [ 32]   Chenu 90  hp 4-cyl GD 120   mm ×   130   mm (4.7   in ×   5.1   in)  [ 32]   [ 2]   Chenu 80-90  hp 6-cyl DD [ 2]   Chenu 80-90  hp 6-cyl GD [ 2]   Chenu 200-250  hp 6-cyl DD 150   mm ×   120   mm (5.9   in ×   4.7   in)  [ 32]   (for dirigibles) [ 2]   Chevrolair (The Arthur Chevrolet Aviation Motors Corporation)
Chevrolair 1923 Water-cooled in-line 4 upright [ 73]   Chevrolair D-4 [ 43]   Chevrolair D-6 [ 43]   [ 74]   Chevrolair 1923 Air-cooled in-line 4 upright and inverted [ 73]   Christoffersen (Christoffersen Aircraft Company)
Christoffersen 120  hp 6-cyl in-line [ 2]   Christoffersen 120  hp V-12 [ 2]   Citroen 2cyl Citroën 2CV – 18  hp Citroen 4cyl Citroën GS 1.2 – 65  hp at 5,700 rpm Data from:  [ 18]  
Clément-Bayard 30  hp 2-cyl HOW [ 2]  130.2   mm ×   111.1   mm (5.125   in ×   4.375   in)  Clément-Bayard 29  hp 4-cyl in-line [ 2]  100   mm ×   120   mm (3.94   in ×   4.72   in)  Clément-Bayard 40  hp 4-cyl in-line [ 2]  100   mm ×   120   mm (3.94   in ×   4.72   in)  Clément-Bayard 100  hp 4-cyl in-line 135   mm ×   160   mm (5.3   in ×   6.3   in)  [ 32]   Clément-Bayard 118.5  hp 4-cyl in-line [ 2]  190   mm ×   230   mm (7.48   in ×   9.06   in)  Clément-Bayard 117.5  hp 6-cyl in-line [ 2]  155   mm ×   185   mm (6.1   in ×   7.28   in)  Clément-Bayard 250  hp 6-cyl in-line [ 2]  155   mm ×   200   mm (6.1   in ×   7.87   in)  (for dirigibles) Clément-Bayard 50  hp 7-cyl Radial [ 2]  100   mm ×   115   mm (3.94   in ×   4.53   in)  Clément-Bayard 300  hp 8-cyl in-line [ 2]  165   mm ×   225   mm (6.5   in ×   8.86   in)  (for airships) Clément-Bayard V-16 [ 2]   (for airships) Cleone Cleone 1930 25  hp 2-cyl hor opp 2 stroke Clerget ( Société Clerget-Blin et Cie    / Pierre Clerget)
Source:Lumsden [ 3]   except where noted
 Clerget 9B on display at the Pima Air & Space Museum    Clerget 50  hp 7-cyl water-cooled radial (1907) [ 76]    Clerget 50 hp  4-cyl [ 2]   110  mm ×  120  mm (4.33  in ×  4.72  in)  Clerget 100 hp  4-cyl [ 2]   140  mm ×  160  mm (5.51  in ×  6.3  in)  Clerget 200 hp  V-8 [ 2]   140  mm ×  160  mm (5.51  in ×  6.3  in) [ 76]   Clerget 2K 16  hp [ 2]   83  mm ×  100  mm (3.25  in ×  3.94  in) [ 76]   Clerget 4V 40  hp 4-cyl in-line water-cooled (1908) [ 76]   Clerget 4W 40  hp 4-cyl in-line water-cooled (1910) [ 76]    Clerget 7Y  60  hp [ 2]   120  mm ×  120  mm (4.72  in ×  4.72  in)  Clerget 7Z    Clerget 9A  (Diesel radial engine)  Clerget 9B    Clerget 9Bf  British version of 9B 140  hp [ 2]   120  mm ×  160  mm (4.72  in ×  6.3  in)  Clerget 9C   Clerget 9F [ 2]   120  mm ×  172  mm (4.72  in ×  6.77  in) Clerget 9J 100  hp [ 2]   105  mm ×  140  mm (4.13  in ×  5.51  in)  Clerget 9Z  110  hp Clerget 11A 200  hp variable compression [ 2]    Clerget 11Eb   Clerget 11G 250  hp [ 2]   120  mm ×  190  mm (4.72  in ×  7.48  in) 5.7:1 compression Clerget 14D [ 76]   Clerget 14E [ 76]   Clerget 14F [ 42]   [ 76]   [ 77]   (Diesel radial engine)  Clerget 14U [ 76]   Clerget 16H diesel V-16 (180x200=81.43L)  Clerget 16SS diesel [ 76]    Clerget 16X   Clerget 18 rotary 300  hp [ 2]   Clerget 32 diesel [ 76]   Clerget Type Transatlantique (H type) [ 14]   Clerget monocylinder powder powdered coal test engine [ 76]   Clerget monocylinder 2x variable compression [ 76]   Clerget monocylinder 4x variable compression [ 76]   Clerget 180-2T V-8 2x variable compression [ 76]   Clerget 180-4T V-8 4x variable compression [ 76]   Clerget 100  hp diesel 1928 9-cyl. radial [ 42]   Clerget 200  hp diesel 1929 9-cyl. radial [ 42]   Clerget 250  hp diesel 9-cyl. radial [ 42]   Clerget 300  hp diesel 9-cyl. radial [ 19]   [ 42]   Cleveland (Walter C. Willard / Cleveland Aero Engines)
Cleveland 150  hp 6-cyl axial engine 6x130   mm ×   150   mm (5   in ×   6   in)  [ 2]   Cleveland (Cleveland Engineering Laboratories Company)
Cleveland Weger 400  hp 6-cyl 2-stroke radial 4.25   in ×   5   in (108   mm ×   127   mm)  [ 2]   C.L.M. (Compagnie Lilloise de Moteurs S.A )
CMB (Construction Mécanique du Béarn ) See: Béarn   
Coatalen Source:Brew [ 79]  
Coatalen 12Vrs-2 [ 16]   diesel Colombo Colombo C.160 [ 2]   Colombo D.110 [ 2]   Colombo E.150 [ 2]   Colombo S.53 [ 17]   Colombo S.63 [ 17]   Comet (Comet Engine Corp, Madison WI.)
Compagnie Lilloise de Moteurs See:C.L.M.  
Conrad (Deutsche Motorenbau G.m.b.H.  / Robert Conrad)
 Conrad C.III  – (licence built by N.A.G. as the C.III N.A.G.) Continental  Continental IO-520  Cors-Air (Cors-Air srl, Barco di Bibbiano, Italy)
Corvair (conversions and derivatives of the Chevrolet Turbo-Air 6 engine)
C.R.M.A. (Société de construction et de Reparationde Materiel Aéronautique )
 Curtiss OX-5 at the Lone Star Flight Museum    D D'Hennian 10-12  hp rotary [ 2]   D'Hennian 50  hp 7-cyl rotary [ 2]   Daimler-Benz Source:Gunston [ 14]   except where noted 
Mercedes 50  hp 4-cyl in-line [ 2]   Mercedes 60  hp 4-cyl in-line 110  mm ×  140  mm (4.3  in ×  5.5  in) [ 2]   Mercedes 70  hp 4-cyl in-line inverted 120  mm ×  140  mm (4.7  in ×  5.5  in) [ 2]   Mercedes 80  hp 6-cyl in-line 105  mm ×  140  mm (4.1  in ×  5.5  in) [ 2]   Mercedes 90  hp 4-cyl in-line 140  mm ×  150  mm (5.5  in ×  5.9  in) [ 2]   Mercedes 120  hp 4-cyl in-line (airship engine) 175  mm ×  165  mm (6.9  in ×  6.5  in) [ 2]   Mercedes 160  hp 6-cyl in-line 140  mm ×  160  mm (5.5  in ×  6.3  in) [ 2]   Mercedes 180  hp 6-cyl in-line 160  mm ×  180  mm (6.3  in ×  7.1  in) [ 2]   Mercedes 240  hp 8-cyl in-line 140  mm ×  160  mm (5.5  in ×  6.3  in) [ 2]   Mercedes 240  hp V-8 (airship engine) 175  mm ×  165  mm (6.9  in ×  6.5  in) [ 2]    Mercedes 260hp 6-cyl in-line  160  mm ×  180  mm (6.3  in ×  7.1  in) [ 2]   Mercedes 650  hp V-12 235  mm ×  250  mm (9.3  in ×  9.8  in) [ 2]   Mercedes Typ E4F 70  hp 120  mm ×  140  mm (4.7  in ×  5.5  in) [ 2]   Mercedes Typ E6F 100  hp 120  mm ×  140  mm (4.7  in ×  5.5  in) [ 2]   Mercedes Typ J4L 120  hp 160  mm ×  170  mm (6.3  in ×  6.7  in) [ 2]   Mercedes Typ J8L 240  hp V-8 160  mm ×  170  mm (6.3  in ×  6.7  in) [ 2]   Mercedes W-18 [ 2]   Mercedes Fh 1256  Mercedes D.I    Mercedes D.II    Mercedes D.III    Mercedes D.IIIa    Mercedes D.IIIaü    Mercedes D.IIIav    Mercedes D.IV    Mercedes D.IVa    Mercedes D.VI   Damblanc-Mutti Damblanc-Mutti 165  hp [ 84]   Damblanc-Mutti 11-cyl. rotary 220  hp [ 2]   Danek (Ceskomorarsk-Kolben-Danek & Co.)
Danek Praga 500  hp V-12 [ 43]   Daniel (Daniel Engine Company)
Dansette-Gillet Dansette-Gillet Type A 45  hp 4-cyl in-line 105   mm ×   160   mm (4.1   in ×   6.3   in)  [ 32]   Dansette-Gillet Type C 32  hp 4-cyl in-line 98   mm ×   125   mm (3.9   in ×   4.9   in)  [ 32]   Dansette-Gillet Type D 70  hp 4-cyl in-line 130   mm ×   160   mm (5.1   in ×   6.3   in)  [ 32]   Dansette-Gillet 100  hp 6-cyl in-line 130   mm ×   160   mm (5.1   in ×   6.3   in)  [ 32]   Dansette-Gillet 120  hp V-8 114   mm ×   160   mm (4.5   in ×   6.3   in)  [ 32]   Dansette-Gillet 200  hp 6-cyl in-line 180   mm ×   200   mm (7.1   in ×   7.9   in)  [ 32]   Darracq Data from:  [ 18]  
Darracq 25  hp O-2 130   mm ×   120   mm (5.1   in ×   4.7   in)  [ 2]   Darracq 50  hp O-4 130   mm ×   120   mm (5.1   in ×   4.7   in)  [ 2]   Darracq 43  hp 4-cyl in-line 120   mm ×   140   mm (4.7   in ×   5.5   in)  [ 2]   Darracq 84  hp 4-cyl in-line 170   mm ×   140   mm (6.7   in ×   5.5   in)  [ 2]   Darracq 12Da 420  hp V-12 Dayton (Dayton Airplane Engine Co.)
de Dietrich de Dietrich 4-cyl in-line [ 2]   Delafontaine Delafontaine Diesel – seven-cylinder air-cooled Demont (Messrs Demont, Puteaux, France)
Demont 300  hp 6-cyl double acting rotary 175   mm ×   80   mm (6.9   in ×   3.1   in)  [ 2]   Deschamps Data from:  [ 18]   (D.J.Deschampsdesigner – Lambert Engine & machine Co., Illinois manufacturer)
Deschamps v-12 inverted 2-stroke diesel Detroit Aero Detroit Aero 25-30  hp 2OA [ 2]   DGEN (Price_Induction, Anglet, France)
Diemech Turbine Solutions (DeLand, Florida, United States)
DKW (A.G.-Werk DKW, Zschopau S.a.)
Dobrotvorskiy Dobrotvorskiy MB-100 Dobrotvorskiy MB-102 Dobrynin Source:Gunston [ 14]   
Dongan (also known as Harbin Engine Factory) Dodge Dodge 125  hp 6-cyl rotary Victory 5   in ×   6   in (130   mm ×   150   mm)  [ 2]   Dorman (W. H. Dorman and Co., Ltd)
Dorman 60-80  hp V-8 4   in ×   4.75   in (102   mm ×   121   mm)  [ 2]   [ 88]   Douglas Mostly developed from Douglas  motorcycle engines
Douglas 350cc Douglas 500cc [ 89]   Douglas Dot [ 89]   Douglas 736cc (some sources 737cc) [ 89]   Douglas 750cc [ 89]   Douglas Digit 22  hp at 3,000rpm [ 89]   Douglas Dryad [ 89]   Douglas/Aero Engines Sprite/ [ 89]   Aero Engines 1500cc [ 89]   Douseler Douseler 40  hp 4-cyl in-line [ 2]   Dreher (Dreher Engineering Company)
Duesenberg Duesenberg Special A [ 91]   Duesenberg Special A3 [ 91]   Duesenberg H 850  hp V-16 6   in ×   7.5   in (150   mm ×   190   mm)  [ 2]   [ 11]   [ 91]   Duesenberg 100  hp 4-cyl. direct drive in-line 4.75   in ×   7   in (121   mm ×   178   mm)  [ 2]   Duesenberg 125  hp 4-cyl. geared in-line 4.75   in ×   7   in (121   mm ×   178   mm)  [ 2]   [ 11]   [ 91]   Duesenberg 300  hp V-12 4.875   in ×   7   in (123.8   mm ×   177.8   mm)  [ 2]   [ 11]   [ 91]   Duesenberg A-44 70  hp 4-cyl 4.375   in ×   6   in (111.1   mm ×   152.4   mm)  [ 2]   Dufaux Dufaux 5-cyl tandem double-acting in-line engine [ 2]   Dushkin Dushkin D-1-A-1100 Dushkin RD-A-150 Dushkin RD-A-300  Dushkin S-155   Dushkin RD-2M Dutheil et Chalmers Data from:  [ 18]   (some sources erroneously as Duthiel-Chambers)
Dutheil et Chalmers 20  hp O-2 125   mm ×   120   mm (4.9   in ×   4.7   in)  [ 2]   Dutheil et Chalmers 25  hp O-2 128   mm ×   130   mm (5.0   in ×   5.1   in)  [ 2]   Dutheil et Chalmers 37.25  hp O-2 110   mm ×   300   mm (4.3   in ×   11.8   in)  [ 2]  [  clarification needed  ]  Dutheil et Chalmers 40  hp O-4 125   mm ×   120   mm (4.9   in ×   4.7   in)  [ 2]   Dutheil et Chalmers 50  hp O-4 Dutheil et Chalmers 60  hp O-6 125   mm ×   120   mm (4.9   in ×   4.7   in)  [ 2]   Dutheil et Chalmers 72.5  hp O-6 128   mm ×   130   mm (5.0   in ×   5.1   in)  [ 2]   Dutheil et Chalmers 76  hp O-4 Dutheil et Chalmers 38  hp OP-2 Dutheil et Chalmers 56.5  hp O-3 110   mm ×   300   mm (4.3   in ×   11.8   in)  [ 2]   Dutheil et Chalmers 75  hp O-4 110   mm ×   300   mm (4.3   in ×   11.8   in)  [ 2]   Dutheil et Chalmers 97  hp O-4 125   mm ×   300   mm (4.9   in ×   11.8   in)  [ 2]   Dutheil et Chalmers 100  hp O-4 160   mm ×   140   mm (6.3   in ×   5.5   in)  [ 2]   Dutheil et Chalmers 72.5  hp O-6 128   mm ×   130   mm (5.0   in ×   5.1   in)  [ 2]   F Fahlin Fahlin Plymouth conversion [ 42]   Fairchild For Ranger and Fairchild Ranger engines see: Ranger   Source:Gunston [ 14]   except where noted 
Falconer (Ryan Falconer Racing Engines)
Farcot Farcot 8-10  hp V-2 [ 2]   Farcot Fan-6 [ 2]   Farcot 100-110  hp V-8 [ 2]   Farcot 30  hp 8cyl radial [ 2]   Farcot 65  hp 8cyl radial 105   mm ×   120   mm (4.13   in ×   4.72   in)  [ 2]   Farcot 100  hp 8cyl radial [ 18]   [ 2]   Farina (S.A. Stabilimenti Farina)
Farman Source:Liron  [ 95]   [ 96]  Note:  Farman engine designations differ from other French manufacturers in using the attributes as the basis of the designation, thus; Farman 7E (7-cyl radial E – Etoile / Star / Radial) or Farman 12We (W-12 fifth type – the e is not a variant or sub-variant it is the type designator). As usual there are exceptions such as the 12Gvi, 12B, 12C and 18T.
Farman 7E Farman 7Ea [ 36]   Farman 7Ear Les Établissements lipton Farman 7Ears Farman 7Ec [ 43]   Farman 7Ed [ 36]   Farman 7Edrs  Farman 8V 200  hp [ 2]   Farman 9E Farman 9Ea Farman 9Ears Farman 9Eb [ 36]   Farman 9Ebr Farman 9Ecr Farman 9Fbr  Farman 12B  Farman 12C Farman 12Crs [ 36]   Farman 12Crvi  Farman 12D  Farman 12G inverted V-12 350  hp  Farman 12V  Farman 12W Farman 12Wa 40° W-12 1919 Farman 12Wb Farman 12Wc Farman 12Wd  Farman 12We    Farman 12Wers   Farman 12Wh Farman 12Wiars Farman 12Wirs Farman 12Wkrs Farman 12Wkrsc Farman 12WI  Farman 18T Farman 18W  Farman 18Wa 120  mm ×  180  mm (4.7  in ×  7.1  in), 450  kW (600  hp) [ 2]   Farman 18Wd Farman 18We 130  mm ×  160  mm (5.1  in ×  6.3  in), 520  kW (700  hp)  Farman 18Wi 110  mm ×  125  mm (4.3  in ×  4.9  in), 370  kW (500  hp)  Fasey Fasey 200  hp V-12 127   mm ×   127   mm (5.0   in ×   5.0   in)  [ 2]   Fatava Source:  [ 32]  
Fatava 45  hp 4IL 110   mm ×   120   mm (4.3   in ×   4.7   in)  [ 2]   Fatava 90  hp V-8 110   mm ×   120   mm (4.3   in ×   4.7   in)  [ 2]   Fatava 180  hp X-16 110   mm ×   120   mm (4.3   in ×   4.7   in)  [ 2]   Faure and Crayssac Faure and Crayssac 80  hp rotary [ 2]   Faure and Crayssac 350  hp 6-cyl. 2st barrel engine 100   mm ×   180   mm (3.9   in ×   7.1   in)  [ 2]   Fedden Designed post war by Roy Fedden   formerly of Cosmos Engineering and Bristol. Roy Fedden Ltd went into liquidation in 1947
Fiat Data from: Italian Civil & Military Aircraft 1930–1945 [ 17]  
Firewall Forward Aero Engines FKFS FKFS Gruppen-Flugmotor A [ 98]   FKFS Gruppen-Flugmotor B? FKFS Gruppen-Flugmotor C [ 98]   FKFS Gruppen-Flugmotor D [ 98]   FKFS Gruppen-Flugmotor 37.6 L 48-cyl [ 98]   Flader Source:Geen and Cross  [ 99]  
Fletcher Fletcher 5  hp [ 3]   Fletcher 9  hp [ 3]   Fletcher Empress 50  hp rotary [ 3]   Fox (Dean Manufacturing Company, Newport, Kentucky)
Fox 45  hp 3-cyl in-line 2-stroke 4   in ×   4   in (100   mm ×   100   mm)  [ 2]   Fox 36  hp 4-cyl in-line 2-stroke 3.5   in ×   3.5   in (89   mm ×   89   mm)  [ 2]   Fox 60  hp 4-cyl in-line 2-stroke 4   in ×   4   in (100   mm ×   100   mm)  [ 2]   Fox 90  hp 6-cyl in-line 2-stroke 4   in ×   4   in (100   mm ×   100   mm)  [ 2]   Fox 200  hp 8-cyl in-line 2-stroke 6   in ×   6   in (150   mm ×   150   mm)  [ 2]   Fox De-luxe 50  hp 4-cyl in-line 2-stroke 4.75   in ×   4.25   in (121   mm ×   108   mm)  [ 2]   Franklin Source:Gunston.  [ 14]  
Fredrickson (World's Motor Company, Bloomington, Illinois)
Fredrickson Model 5a [ 2]   Fredrickson Model 10a [ 2]   Frontier (Frontier Iron Works, Buffalo, New York)
Frontier 35  hp 4-cyl in-line 4.125   in ×   4.75   in (104.8   mm ×   120.7   mm)  [ 2]   Frontier 55  hp V-8 4.125   in ×   4.75   in (104.8   mm ×   120.7   mm)  [ 2]   Fuji Fuji JO-1 [ 9]   (Nippon JO-1) Fuji J3-1 [ 21]   (Nippon J3-1) Funk (Akron Aircraft Company / Funk Aircraft Company)
H Haacke (Haacke Flugmotoren)Source: RMV  [ 1]  
 Haacke HFM 2  – 2cyl.  25/28  hp 112   mm ×   140   mm (4.4   in ×   5.5   in)  [ 2]    Haacke HFM 2a  – 2cyl.  35  hp 120   mm ×   140   mm (4.7   in ×   5.5   in)  [ 2]   Haacke HFM 3 – 3cyl. fan 40  hp [ 2]   Haacke 55/60  hp 5-cyl. radial [ 2]   Haacke 60/70  hp radial [ 2]   Haacke 90  hp 7-cyl. radial [ 2]   Haacke 120  hp 10-cyl. radial [ 2]   Hallett (Hallett Aero Motors Corp, Inglewood CA.)
Hallett H-526 7-cyl radial 130  hp [ 35]   Hansa-Lloyd (Hansa-LLoyd Werke AG)
Hansen-Snow (W.G. Hansen & L.L. Snow, Pasadena, CA)
Hansen-Snow 35  hp 4-cyl in-line 4   in ×   4.5   in (100   mm ×   110   mm)  [ 2]   Hardy-Padmore Hardy-Padmore 100  hp 5-cyl rqdial 4   in ×   4   in (100   mm ×   100   mm)  [ 2]   Harkness (Donald (Don) Harkness, built by Harkness & Hillier Ltd)
Harriman (Harriman Motors Company, South Glastonbury, Conn.)
Harriman 30  hp 4-cyl in-line [ 2]   Harriman 60  hp 4-cyl in-line 5   in ×   5   in (130   mm ×   130   mm)  [ 2]   Harriman 100  hp 4-cyl in-line 5   in ×   5   in (130   mm ×   130   mm)  [ 2]   Harris-Gassner Harris-Gassner 50/60  hp V-8 [ 2]   Harroun Harroun 24  hp 2-cyl HOA 4   in ×   4   in (100   mm ×   100   mm)  [ 2]   Hart Hart 150  hp 9-cyl rotary 5   in ×   6   in (130   mm ×   150   mm)  [ 2]   Hart 156  hp 9-cyl radial (?) 6   in ×   5   in (150   mm ×   130   mm)  [ 2]   [ 3]   H.C.G. (Les Établissements lipton)
Heath (Heath Aircraft Corp)
Heath 4-B Heath 4-C  Heath B-4   [ 42]   Heath B-12 Heath C-2 Heath C-3 Heath C-6 Heath (Heath Aerial Vehicle Company, Chicago Illinois)
Heath 25/30  hp 4-cyl in-line [ 2]   Heinkel-Hirth Source:  [ 14]  
Helium From Flight  [ 32]  
Helium 45  hp 3-cyl radial Helium 60  hp 3-cyl radial Helium 75  hp 5-cyl radial Helium 100  hp 5-cyl radial Helium 45  hp 3-cyl rotary 2-stroke Helium 60  hp 3-cyl rotary 2-stroke Helium 100  hp 5-cyl rotary 2-stroke Helium 120  hp 6-cyl rotary 2-stroke Helium 200  hp 10-cyl rotary 2-stroke Helium 120  hp 6-cyl rotary 2-stroke Helium 200  hp 10-cyl rotary 2-stroke Hendee Hendee Indian 60/65  hp V-8 4   in ×   4.5   in (100   mm ×   110   mm)  [ 2]   Hendee Indian 50  hp 7-cyl rotary 4.375   in ×   4.875   in (111.1   mm ×   123.8   mm)  [ 2]   Hendee Indian 60  hp 9-cyl rotary [ 109]  [  clarification needed  ]  Henderson Henderson 6  hp 4-cyl in-line 2.375   in ×   2.1875   in (60.33   mm ×   55.56   mm)  [ 2]   Hess (Aubrey W. Hess / Alliance Aircraft Corporation)
Hiero (Otto Hieronimus  – designer – several manufacturers)
Hiero 50/60  hp 4-cyl in-line  [ 2]    Hiero 6  – generic title for all the Hiero 6-cyl. engines Hiero B Hiero C Hiero D  Hiero E    Hiero L    Hiero N   Hiero 85/95  hp 4-cyl in-line  [ 2]   [ 110]   Hiero 145  hp  [ 111]   Hiero 185  hp Hiero 180/190  hp 4-cyl inline  [ 2]   Hiero 200  hp 6-cyl inline  [ 2]   [ 111]   Hiero 230/240  hp 6-cyl inline  [ 2]   Hiero 240/250  hp 6-cyl inline HC  [ 2]   Hiero 200/220  hp V-8 [ 2]   [ 111]   Hiero 300/320  hp 6-cyl inline  [ 2]   Hiero 270/280  hp 6-cyl inline  [ 2]   Hiero 35/40  hp 2-cyl HOA  [ 2]   Hill Helicopters Hill Helicopters GT50 [ 112]   Hiller Hiller 1910 Hiller 30  hp Hiller 60  hp Hiller 90  hp Hilz Hilz 45/50  hp 4-cyl in-line 120   mm ×   130   mm (4.7   in ×   5.1   in)  [ 2]   Hilz 50/55  hp 4-cyl in-line 120   mm ×   130   mm (4.7   in ×   5.1   in)  [ 2]   Hilz 65  hp 4-cyl in-line 124   mm ×   140   mm (4.9   in ×   5.5   in)  [ 2]   Hindustan Aeronautics Limited Hispano-Suiza Note:On French engine designations 
—even—  sub-series numbers (for example 
Gnome-Rhône 14N-68 ) rotated anti-clockwise (LH rotation) and were generally fitted on the starboard side, 
—odd—  numbers (for example 
Gnome-Rhône 14N-69 ) rotated clockwise (RH rotation) and were fitted on the port side.
Hodge Hodge 320  hp 18-cyl radial 4   in ×   4   in (100   mm ×   100   mm)  [ 2]   Hofer (Al Hofer)
Hofer 10-12  hp 4cyl in-line 3.125   in ×   3.75   in (79.4   mm ×   95.3   mm)  [ 2]   Holbrook (Holbrook Aero Supply)
Holbrook 35  hp [ 2]   Holbrook 50  hp Hopkins & de Kilduchevsky 30-40  hp Hopkins & de Kilduchevsky 60-80  hp Howard Howard 120  hp 6-cyl in-line 150   mm ×   105   mm (5.9   in ×   4.1   in)  [ 2]   Hudson (John W Hudson)
Hudson 100  hp 10-cyl radial 4.3125   mm ×   4.75   mm (0.16978   in ×   0.18701   in)  [ 2]   Hummel (James Morris (Morry) Hummel of Bryan, Ohio)  [ 119]  
Hummel 28  hp 1/2 VW Hummel 32  hp 1/2 VW Hummel 45  hp 1/2 VW Hummel 50  hp VW Hummel 60  hp VW Hummel 70  hp VW Hummel 85  hp VW HuoSai (HuoSai  – Piston engine)
Hurricane Hurricane C-450 (8-cyl 2-stroke radial) [ 43]   K Kalep (Fyodor Grigoryevich Kalep)
Kawasaki Source:Gunston [ 14]    except where noted
Kelly Kelly 200  hp 2-stroke 4-cyl inline 6.5   in ×   6.3   in (170   mm ×   160   mm)  [ 2]   Kemp  Kemp G-2 flat-twin  (a.k.a. Grey Eagle)
Kemp D-4 Kemp E-6 Kemp G-2 Kemp H-6 (55  hp 6IL) 4.25   in ×   4.5   in (108   mm ×   114   mm)  [ 2]   Kemp I-4 (35  hp 4IL) 4.25   in ×   4.5   in (108   mm ×   114   mm)  [ 2]   Kemp J-8 (80  hp V-8) 4.25   in ×   4.75   in (108   mm ×   121   mm)  [ 2]   Kemp K-2 Kemp M-2 Kemp O-101 Kemp-Henderson 27  hp Kessler Kessler 200  hp 4.75   in ×   5   in (121   mm ×   127   mm)  [ 2]   Kessler 6C-400 5.5   in ×   6   in (140   mm ×   150   mm)  [ 2]   Kimball Kimball Beetle K Kimball Gnat M King (Chas. B. King)
King 550  hp V-12 5.5   in ×   7   in (140   mm ×   180   mm)  [ 2]   Kinner Source:Gunston [ 14]    except where noted
Kirkham Kirkham 50  hp 4IL (C-4?) 4.3125   in ×   5.125   in (109.54   mm ×   130.18   mm)  [ 2]   Kirkham 75-85  hp Kirkham 110  hp Kirkham 180  hp 9-cyl. radial Kirkham B-4 4.125   in ×   4.75   in (104.8   mm ×   120.7   mm)  [ 2]   Kirkham B-6 4.125   in ×   4.75   in (104.8   mm ×   120.7   mm)  [ 2]   Kirkham B-12 Kirkham BG-6 (geared) 4.3125   in ×   5.125   in (109.54   mm ×   130.18   mm)  [ 2]   Kirkham C-4  Kirkham K-12   [ 83]   Kishi Kishi 70  hp V-8  96   mm ×   120   mm (3.8   in ×   4.7   in)  [ 2]   Klimov Source:Gunston [ 14]   
Knox (Knox Motors Company, Springfield Mass.)
Knox 300  hp V-12 4.75   in ×   7   in (121   mm ×   178   mm)  [ 2]   Knox H-106 Knox R-266 Koerting Koerting 65  hp V-8 116   mm ×   126   mm (4.6   in ×   5.0   in)  [ 2]   Koerting 185  hp V-8 110   mm ×   140   mm (4.3   in ×   5.5   in)  [ 2]   Koerting 250  hp V-12 120   mm ×   140   mm (4.7   in ×   5.5   in)  [ 2]   Kosoku (Kosokudo Kikan KK)
(Dr. Kröber und Sohn GmbH, Treuenbrietzen)
(Compact Radial Engines)
Konrad (Oberbayische Forschungsanhalt Dr. Konrad )
Konrad 109-613 Konrad Enzian IV rakatenmotor [ 37]   Konrad Enzian V rakatenmotor [ 37]   Konrad Rheintochter R 3 rakatenmotor [ 37]   Körting Kg IV V-8 [ 4]   Körting 8 SL Kostovich (O.S. Kostovich)
Kostovich 2-cyl airship engine [ 72]   Kostovich 80  hp 8-cyl airship engine [ 72]   Krautter (Dipl. Ing. Willi Krautter)
Krautter-Leichtflugmotor [ 37]   Kroeber (Doktor Kroeber & Sohn G.m.b.H.)
Kruk Kruk rotary 130   mm ×   130   mm (5.1   in ×   5.1   in)  [ 2]   Kuznetsov Source:Gunston [ 14]   except where noted 
L L'Aisle Volante C.C.4 [ 42]   Labor Labor 70  hp 4-cyl in-line 100   mm ×   210   mm (3.9   in ×   8.3   in)  [ 32]   Lambert Engine Division (Monocoupe Corporation – Lambert Engine Division)
Lambert M-5 [ 43]   Lambert R-266 [ 42]   Lambert R-270 Lamplough Lamplough 6-cyl 2-stroke rotary 116   mm ×   126   mm (4.6   in ×   5.0   in)  [ 2]   Lamplough 6-cyl 2-stroke axial [ 139]   Lancia (Lancia & Company. / Vincenzo Lancia)
Laviator Laviator 35  hp 3-cyl rotary 2-stroke 110   mm ×   100   mm (4.3   in ×   3.9   in)  [ 32]   Laviator 50  hp 6-cyl rotary 2-stroke 100   mm ×   130   mm (3.9   in ×   5.1   in)  [ 2]   [ 32]   Laviator 65  hp 6-cyl rotary 2-stroke 100   mm ×   130   mm (3.9   in ×   5.1   in)  [ 2]   Laviator 75  hp 9-cyl rotary 2-stroke 100   mm ×   130   mm (3.9   in ×   5.1   in)  [ 32]   Laviator 100  hp 12-cyl rotary 2-stroke 100   mm ×   130   mm (3.9   in ×   5.1   in)  [ 32]   Laviator 80  hp 6-cyl 2-stroke water-cooled radial 100   mm ×   130   mm (3.9   in ×   5.1   in)  [ 2]   Laviator 120  hp 4IL 145   mm ×   174   mm (5.7   in ×   6.9   in)  [ 2]   Laviator 110  hp 6IL 130   mm ×   160   mm (5.1   in ×   6.3   in)  [ 2]   Laviator 250  hp 6IL 180   mm ×   200   mm (7.1   in ×   7.9   in)  [ 2]   Laviator 80  hp V-8 100   mm ×   130   mm (3.9   in ×   5.1   in)  [ 2]   Laviator 120  hp V-8 114   mm ×   160   mm (4.5   in ×   6.3   in)  [ 2]   Laviator 200  hp V-8 145   mm ×   175   mm (5.7   in ×   6.9   in)  [ 2]   Lawrance  Lawrance A-3   Lawrance B 60  hp 3-cyl. [ 11]   Lawrance C-2  Lawrance J-1   Lawrance J-2 Lawrance L-2 65  hp 4.25   in ×   5.25   in (108   mm ×   133   mm)  [ 2]   [ 83]    Lawrance L-3    Lawrance L-4  a.k.a. 'Wright Gale' Lawrance L-5 Lawrance L-64 Lawrance N [ 14]   Lawrance N-2 40HP 2OA 4.25   in ×   4.25   in (108   mm ×   108   mm)  [ 2]   Lawrance R [ 14]   Lawrance R-1 [ 83]   Lawrance-Moulton A (France) [ 2]   Lawrance-Moulton B (200  hp V-8 USA) 4.75   in ×   6.5   in (121   mm ×   165   mm)  [ 2]   Lawrance 140  hp 9-cyl radial 4.25   in ×   5.25   in (108   mm ×   133   mm)  [ 2]   Lawrance 200  hp 9-cyl radial 4.5   in ×   5.5   in (110   mm ×   140   mm)  [ 2]   Lawrence Radiation Laboratory Le Gaucear Le Gaucear 150  hp 10-cyl rotary [ 2]   Le Maitre et Gerard Le Maitre et Gerard 700  hp V-8 180   mm ×   210   mm (7.1   in ×   8.3   in)  [ 2]   LeBlond LeBlond was sold to Rearwin and engines continued under Ken-Royce name.
(F. Lefèrve)
Lefèrve 2-cyl. 33  hp [ 15]   Lenape Lenape AR-3 [ 42]   Lenape LM-3 Papoose 3-cyl. Lenape LM-5 Brave 5-cyl. Lenape LM-7 Chief 7-cyl. Lenape LM-125 Brave (suspect should be LM-5-125) Lenape LM-365 Papoose (suspect should be LM-3-65) Lenape LM-375 Papoose (suspect should be LM-3-75) Lessner Lessner 1908 4-cyl airship engine [ 72]   Levi Levi 7-cyl barrel engine [ 2]   Leyland Motors  J. G. Parry-Thomas , the chief engineer at Leyland Motors .
A single X-8 engine was built in August 1918 but failed during testing and with the end of WWI development was abandoned. [ 141]   LFW LFW 0 LFW I LFW II LFW III LFW-12 X-1 Liberty Source:Gunston [ 14]   except where noted 
Ligez Ligez 3-cyl rotary 115   mm ×   130   mm (4.5   in ×   5.1   in)  [ 32]   Light Light Kitten 20 Light Kitten 30 Light Tiger 100 Light Tiger 125 Light Tiger Junior 50 Lindequist (Konsortiert Överingeniör Sven Lindequist's Uppfinninggar  – Consortium Senior Engineer Sven Lindqvist Inventions)
Lindewqiuist 1,000  hp Stratospheric engine [ 42]   LOM (Letecke Opravny Malesice, Praha )
Lorraine-Dietrich (Société Lorraine des Anciens Établissements de Dietrich ) Source:Jane's All the World's Aircraft 1938  [ 42]   [ 143]   [ 144]   except where noted
Note:On French engine designations even sub-series numbers (for example 
Gnome-Rhône 14N-68 ) rotated anti-clockwise (LH rotation) and were generally fitted on the starboard side, odd numbers (for example 
Gnome-Rhône 14N-69 ) rotated clockwise (RH rotation) and were fitted on the port side.
Lorraine 3B licence-built Potez 3B? Lorraine 3D licence-built Potez 3B Lorraine 5P Ecole – 5 cyl radial [ 43]   Lorraine 6A – (AM) 110  hp Lorraine 6Ba – 6 cyl two-row radial 130CV  Lorraine 7M Mizar  – 7 cyl radial Lorraine 8A – V-8 Lorraine 8Aa Lorraine 8Ab Lorraine 8Aby  Lorraine 8B – V-8 Lorraine 8Ba Lorraine 8Bb Lorraine 8Bd Lorraine 8Be Lorraine 8BI (inverted?)  Lorraine 9A  Lorraine 9N Algol  – Type 120 9 cyl radial Lorraine Dietrich 12Cc  ? Dc in error? Lorraine 12? Hibis 450  hp  Lorraine 12D   Lorraine 12 DOO 460  hp O-12 [ 16]    Lorraine 12E Courlis  – W-12 450  hp  Lorraine 12F Courlis  – W-12 600  hp  Lorraine 12H Pétrel  – V-12 Lorraine 12Q Eider  Lorraine 12R Sterna – V-12 Type 111 700  hp Lorraine 12Rs Sterna – V-12 Type 111 700  hp  Lorraine 12Rcr Radium  – inverted V-12 with turbochargers 2,000  hp  Lorraine 14A Antarès  – 14 cylinder radial 500  hp  Lorraine 14E  – 14 cylinder radial 470  hp [ 145]   Lorraine 18F Sirius – Type 112 Lorraine 18F.0 Sirius Lorraine 18F.00 Sirius Lorraine 18F.100 Sirius  Lorraine 18G Orion – W-18 Lorraine 18Ga Orion – W-18 Lorraine 18Gad Orion – W-18  Lorraine 18K – W-18 Lorraine 18Ka Lorraine 18Kd Lorraine 18Kdrs  Lorraine 24 – W-24 1,000  hp (3 banks of 8 cylinders) Lorraine 24E Taurus – 24 cyl in-line radial (six banks of 4-inline?) 1,600  hp Lorraine P5 Lorraine AM (moteur d’Aviation Militaire (A.M.) ) – derived from German 6-cyl in-line engines Lorraine Algol Junior – 230  hp Lorraine-Latécoère 8B Lorraine Diesel – built in 1932, rated at 200  hp Lorraine DM-400 LPC LPC Fang 1-KS-40 LPC Sword 3.81-KS-4090 LPC Meteor 33-KS-2800 LPC Mercury 0.765-KS-53,600 LPC Viper I-C 5.6-KS-5,400 LPC Viper II-C 3.77-KS-8,040 LPC Lance I-C 6.65-KS-38,800 LSA-Engines (LSA-Engines GmbH, Berlin, Germany)
Lutetia (Marcel Echard / Moteurs Lutetia)
 Lutetia 4.C.02  V-4, 2-stroke, 1267 cc, 40-45  hp at 2800rpm [ 1]   Lutetia 6-cyl radial 70  hp a 2600 rpm [ 1]   Lycoming  Lycoming O-540  Lyulka Source:Gunston.  [ 14]  
M M&D Flugzeugbau TJ-42 [ 148]   MAB 4-cylinder air-cooled "fan" engine 4-cylinder vertical water-cooled in-line engine Macchi Macchi MB.2 – 2.cyl 20  hp at 3,000 rpm Macomber Avis Macomber Rotary Engine Company with Avis Engine Company
Mantovani Mantovani Citroën 2CV car engine conversion [ 1]   Marchetti (Marchetti Motor Patents)
Mark (Stahlwerk Mark Flugzeugbau)
Marcmotor (Macerata, Italy)
Marquardt Corporation Marquardt PJ40 pulsejet   Marquardt PJ46 pulsejet   Marquardt RJ30 [ 9]   C-20 ramjet Marquardt RJ31 C-30 Ramjet Marquardt RJ34 ramjet   Marquardt RJ39 ramjet  Marquardt RJ43   Marquardt RJ57 [ 10]   ramjet Marquardt RJ59 [ 10]   ramjet Marquardt MA-19 [ 9]   [ 21]   Marquardt MA-20 [ 10]   [ 9]   [ 21]   Marquardt MA-24 [ 21]    Marquardt MA-74   Marquardt MA-196 [ 24]   Marquardt C-20 [ 80]   (2x C-20s fitted to P-51 and 2x Marquardt C20-85D fitted to P-80A 44-85042) Marquardt C-30 (2x Marquardt C30-10B fitted to P-80A 44-85214) Marquardt C-48 Marquardt R-1E [ 24]   Marquardt R-40A [ 24]   Martin Martin 133? typo? Martin 333 [ 154]   [ 43]   Martin 500 [ 43]   Martin 8200 (190  hp V-8) 4.625   in ×   7   in (117.5   mm ×   177.8   mm)  [ 2]   Martin L-330 Masson Masson 50  hp 6-cyl in-line [ 2]   Mathis Note:On French engine designations even sub-series numbers (for example 
Gnome-Rhône 14N-68 ) rotated anti-clockwise (LH rotation) and were generally fitted on the starboard side, odd numbers (for example 
Gnome-Rhône 14N-69 ) rotated clockwise (RH rotation) and were fitted on the port side.
Mawen (Mawen S.A.)
Mawen 150  hp rotary [ 42]   Mawen 350  hp rotary [ 42]   Mawen 700  hp two row rotary [ 42]   Max Ams (Max Ams machine Company)
Max Ams 75  hp V-8 3.9375   in ×   5.125   in (100.01   mm ×   130.18   mm)  [ 2]   Maxim Maxim 87  hp 4-cyl in-line 5   in ×   5.625   in (127.0   mm ×   142.9   mm)  [ 2]   Maximotor Makers Maximotor 50  hp Maximotor 60-70  hp Maximotor 70-80  hp Maximotor 80-100  hp Maximotor 100  hp Maximotor 120  hp Maximotor 150  hp Maximotor A-4 (50  hp 4ILW) 4.5   in ×   5   in (110   mm ×   130   mm)  [ 2]   Maximotor A-6 (75  hp 6ILW) 4.5   in ×   5   in (110   mm ×   130   mm)  [ 2]   Maximotor A-8 (110  hp V-8)5   in ×   5.5   in (130   mm ×   140   mm)  [ 2]   Maximotor B-6 (115 6ILW) 5   in ×   6   in (130   mm ×   150   mm)  [ 2]   Maximotor 70  hp 4-in-line 5.25   in ×   5.5   in (133   mm ×   140   mm)  [ 2]   McDowell (Geo. McDowell. Brooklyn NY.)
McDowell Twin-Piston V-4 2-stroke [ 2]   Mead (Mead Engine Co.)
Mead 50  hp 4-cyl in-line 4.75   in ×   4.5   in (121   mm ×   114   mm)  [ 2]   Menasco Sources:Gunston and Jane's. [ 14]   [ 162]   
Mengin (Établissements Pierre Mengin )
 Mengin B   Mengin C (later 2A.01), Poinsard design [ 42]   Mengin G.M.H. (Genete, Mengin, and Hochet) [ 42]   Mengin 2A.01 Poinsard design [ 42]   Hochet-Mengin Merkulov (Ivan A. Merkulov)
Merkulov DM-4 ramjet [ 163]   Data from:  [ 18]  
Métallurgique 32  hp 4-cyl in-line 100   mm ×   150   mm (3.94   in ×   5.91   in)  [ 2]   Métallurgique 40  hp 4-cyl in-line 85   mm ×   130   mm (3.35   in ×   5.12   in)  [ 4]   Métallurgique 48  hp 4-cyl in-line 125   mm ×   150   mm (4.92   in ×   5.91   in)  [ 2]   Métallurgique 60  hp 4-cyl in-line 100   mm ×   150   mm (3.94   in ×   5.91   in)  [ 4]   Métallurgique 90  hp 4-cyl in-line 125   mm ×   150   mm (4.92   in ×   5.91   in)  [ 4]   Meteor (Meteor S.p.A. Constuzioni Aeronautiche )
Metz (Metz Company, Waltham, Mass.)
Metz 125  hp rotary 6.75   in ×   6.75   in (171   mm ×   171   mm)  [ 2]   Michel Michel IV-AT3 Michel 4A-14 Michel RAT-3 [ 164]    100  hp Michel A.M. 14 MARK II [ 165]   Michel A.M.7 6L 200  hp [ 35]   Michel A.M.14 Type I 4L 100  hp [ 35]   [ 43]   Michel A.M.14 Type II [ 43]   Michel A.M.14 Type III [ 43]   Michel A.M.16 6L 40  hp [ 35]   Michigan Michigan 2-cyl 2-stroke rotary 5   in ×   5   in (130   mm ×   130   mm)  [ 2]   Michigan Rover Miese Data from:  [ 18]  
Miese 50-60  hp 8-cyl [ 4]   Miese 100  hp 8-cyl radial 130   mm ×   130   mm (5.1   in ×   5.1   in)  [ 2]   [ 4]   Mikulin-Stechkin (A.A. Mikulin & B.S. Stechkin)
Milwaukee Tank Milwaukee Tank V-470 Milwaukee Tank V-502 Miller (Harry A. Miller Manufacturing Company)
Miller 125  hp 4-cyl in-line 4   in ×   7   in (100   mm ×   180   mm)  [ 2]   Miller V-12 5   in ×   6   in (130   mm ×   150   mm)  [ 2]   Data from:  [ 168]    (Établissements Minié, Colombes, Seine, France)
Minié 4.B0 Horus  Minié 4.D   Minié 4.E0 Horus Minié 4.E2 Horus Modena Avio Engines (Rubiera, Italy)
Monaco (Monaco Motor and Engineering Co. Ltd.)
Monaco 75  hp [ 5]   Monaco 100  hp [ 5]   Monnett Data from:'  [ 169]  
Monnett AeroVee Monnett 1600cc E-Vee Monnett 1600cc SuperVee Monnett 1700cc E-Vee Monnett 1700cc SuperVee Monnett 1835cc E-Vee Monnett 2007cc E-Vee Morehouse Morehouse 15  hp Morehouse 29  hp Morehouse M-42 Morehouse M-80 Mors Data from:  [ 18]  
Mors 30  hp V-4 100   mm ×   130   mm (3.9   in ×   5.1   in)  [ 2]   Mosler (Mosler, Inc. of Hendersonville, North Carolina)
Mozhaiskiy Mozhaisky gas fired machine [ 72]   Mudry (Moteurs Mudry-Buchoux)
Mulag Mulag 90/113  hp 6-cyl in-line 110   mm ×   170   mm (4.3   in ×   6.7   in)  [ 2]   Murray-Willat Murray Ajax Murray Atlas Murray-Willat 35  hp 6-cyl 2-stroke rotary 75   mm ×   90   mm (3.0   in ×   3.5   in)  [ 2]   Murray-Willat 90  hp 6-cyl 2-stroke rotary 100   mm ×   130   mm (3.9   in ×   5.1   in)  [ 2]   MWfly (MWfly srl, Passirana di Rho, Italy)
P Packard Source:Gunston.  [ 14]   [ 177]  
Packard 1A-258 1922 single Packard 1A-744 1919 V-8(60) 180  hp 4.75  in ×  5.25  in (121  mm ×  133  mm) [ 2]   Packard 1A-825 1921 V-8(60) 5  in ×  5.25  in (127  mm ×  133  mm) [ 2]   Packard 1A-905 225  hp V-12 4  in ×  6  in (100  mm ×  150  mm) [ 2]   Packard 1A-1100 1917 V-8(45) – small scale production of Liberty L-8   Packard 1A-1116 1919 V-12(60) 282  hp 4.75  in ×  5.25  in (121  mm ×  133  mm) [ 2]   Packard 1A-1237 1920 V-12(60) 315  hp 5  in ×  5.25  in (127  mm ×  133  mm) [ 2]   Packard 2A-1237 1923 V-12(60) Packard 1A-1300 1923 V-12(60) Packard 1A-1464 1924 V-12(60) 1st redesign of 1A-1300  Packard 1A-1500  1924 V-12(60) variants: Packard 2A-1500 1925 V-12(60), Packard 3A-1500 1927 V-12(60)  Packard 1M-1551 test engine Packard 1A-1551 1921 IL-6 Packard 1A-1650 1919 Packard's post war Liberty Packard 1A-2025 1920 V-12(60) 540  hp 5.75  in ×  6.5  in (146  mm ×  165  mm) [ 2]   Packard 1A-2200 1923 V-12(60) (made as 6 cyl.)  Packard 1A-2500  1924 V-12 variants include 2A-2500, 2A-2540, 3A-2500, 4A-2500, 5A-2500, 3M-2500, 4M-2500, 5M-2500   Packard X-2775  – experimental X-24, three engines built  Packard 1A-3000 193? H-24 "H" exp. Packard 1A-5000 1939 X-24(60) exp. Packard 2A-5000 1939 H-24 exp. Packard 3A-5000 1939 X-24(90) exp. sleeve valve Packard 1D-2270 1952 V-16(TD60)  Packard DR-980  1928 R-9(D) 1st diesel to fly Packard DR-1340 1932 R-9(D) 2-cycle Packard DR-1520 1932 R-9(D) 2-cycle Packard DR-1655 1932 R-9(D) exp. diesel Packard 299 1916 V-12(60) "299" racer engine Packard 452 1917 IL-6 aero exp. Packard 905-1 1916 V-12(40) Packard 905-2 1917 V-12(40) Packard 905-3 1917 V-12(40) (1A-905) Packard IL-6 (1A-1551) Packard L-8 (1A-1100) – licence-built Liberty L-12   Packard L-12 1917 Liberty L-12 engines Packard L-12E 1918 U-12 Duplex – 2 crankshafts[  citation needed  ]  Packard V-1650 – inverted Liberty L-12  Packard V-1650 Merlin  – licence-built Rolls-Royce Merlin   Packard W-1 1921 W-18(40) Air Service-designed and Packard-built Packard W-1-A 1923 W-18(40) Air Service-designed and Packard-built Packard W-1-B 1923 W-18(40) Air Service-designed and Packard-built Packard W-2 1923 W-18(40) Air Service designed  Packard XJ41  1946 Turbo-Jet Experimental turbojet. 7 were contracted  Packard XJ49  1948 Turbo-Fan Experimental fan jet. Highest thrust—10,000  lbf (44  kN)—jet built up to that time Palmer (Palmer Motor Company)
Palons & Beuse 2-cyl opposed [ 2]   Source: [ 178]   (Société Panhard & Levassor )
Inline engines Panhard & Levassor 4M – Dirigible  engine with power outputs of 50 to 120  hp (1905–1911) Panhard & Levassor 4I – 35/40  hp (1909) Panhard & Levassor 6I – 55  hp (1910) Panhard & Levassor 6J – 65  hp (1910) V8 engines Panhard & Levassor V8 – 100  hp (1912) V12 engines Panhard & Levassor 12J – 220  hp (1915) Panhard & Levassor 12M – 500  hp (1918) V12 sleeve valve engines Panhard & Levassor VL 12L – 450  hp (1924) Panhard & Levassor VK 12L – 450  hp (1925) W16 engines Panhard & Levassor 16W – 650  hp (1920) Parker (Aero Parker Motor Sales Company)
Parker 1912 3 cyl Parker 1912 6 cyl Parma Technik (Luhačovice, Zlín Region, Moravia, Czech Republic)
PBS (První Brnenská Strojírna Velká Bíteš, a.s.)
Peterlot Peterlot 80  hp 7-cyl radial Peugeot  Peugeot 8Aa , or L112, V-8 100   mm ×   180   mm (3.9   in ×   7.1   in)  [ 2]   [ 183]   Peugeot Type 16AJ 440  hp double V-8 120   mm ×   160   mm (4.7   in ×   6.3   in)  [ 2]   Peugeot L41 600  hp V-12 160   mm ×   170   mm (6.3   in ×   6.7   in)  [ 2]   Peugeot Type 16X X-16 130   mm ×   170   mm (5.1   in ×   6.7   in)  [ 2]   Peugeot 12L13 [ 43]   Pheasant Aircraft Company Phillips (Phillips Aviation Company)
Phillips 333 (Martin 333) Phillips 500 Piaggio Data from: Italian Civil & Military Aircraft 1930–1945 [ 17]   and Jane's 1938 [ 42]  
Pierce (Samuel S Pierce Airplane Company)
Pierce B 35  hp 3RA 4   in ×   6   in (100   mm ×   150   mm)  [ 2]   Pieper (Pieper Motorenbau GmbH )
Pieper Stamo MS 1500 [ 44]   Pieper Stamo 1000 [ 44]   Pipe Data from:  [ 18]  
Pipe 50  hp V-8 3.94   in ×   3.94   in (100   mm ×   100   mm)  [ 2]   [ 4]   Pipe 110  hp V-8 [ 4]   Potez Potez A-4 50  hp 4IL upright 100  mm ×  120  mm (3.9  in ×  4.7  in) [ 2]   Potez 1C APU Potez 1D APU  Potez 2D APU Potez 2D-2 APU Potez 2D-5 APU  Potez 2C APU Potez 3B [ 42]    Potez 4D    Potez 4E   Potez 6A Potez 6Aa Potez 6Ab [ 43]   Potez 6Ac  Potez 6B [ 42]    Potez 6D   Potez 6E [ 10]    Potez 8D   Potez 9A [ 42]  Potez 9Ab [ 36]   Potez 9Abr [ 36]   Potez 9Ac  Potez 9B [ 42]  Potez 9Ba Potez 9Bb Potez 9Bd  Potez 9C  Potez 9E [ 42]   Potez 12As Potez 12D (a.k.a. D.12) [ 42]   [ 36]  Potez 12D-00 Potez 12D-01 Potez 12D-03 Potez 12D-30  Poyer (Poyer Aircraft Engine Company)
Praga Source: Jane's All the World's Aircraft 1938 [ 42]  
Pratt & Whitney Rzeszów PZL-10 Primi-Berthand Primi-Berthand 4-cyl in-line 2-stroke 100   mm ×   180   mm (3.9   in ×   7.1   in)  [ 2]   PZI (Państwowe Zakłady Inżynieryjne  – National Engineering Works)
PZL (PZL  Państwowe Zakłady Lotnicze )
R Rasmussen (Hans L Rasmussen)
Rausenberger Rausenberger A-8 45  hp V-8 3.5   in ×   3.75   in (89   mm ×   95   mm)  [ 2]   Rausenberger B-8 75  hp V-8 4.125   in ×   4.75   in (104.8   mm ×   120.7   mm)  [ 2]   Rausenberger C-12 150  hp V-12 4.125   in ×   6   in (104.8   mm ×   152.4   mm)  [ 2]   Rausenberger D-23 250  hp V-12 5   in ×   6.5   in (130   mm ×   170   mm)  [ 2]   Rausenberger E-6 150  hp 6IL 5   in ×   6   in (130   mm ×   150   mm)  [ 2]   Rausenberger 500  hp Rearwin Rearwin 1909 30-45  hp Rearwin 1909 40-60  hp Rearwin 1910 50-75  hp Rearwin 1911 80-90  hp Rectimo (Rectimo Aviation SA) / (Rectimo-Savoie Aviation)
Rectimo 4 AR 1200 [ 44]   Rectimo 4 AR 1600 [ 67]   RED RED Aircraft GmbH
 RED A03  – V12 four-stroke diesel engine Redrup Redrup 1910 50  hp 10-cyl contra-rotating rotary Redrup 1914 150  hp 7-cyl radial Redrup 5-cyl barrel engine Redrup Fury (barrel engine built by Aero Syndicate Ltd.) Reggiane Reggiane Re 101 R.C.50 I (sometimes designated Re L 101 R.C.50 I) [ 188]   Reggiane Re 102 R.C.50 I (inverted W-18) [ 188]   Reggiane Re 103 R.C.40 I (inverted W-18) [ 188]   Reggiane Re 103 R.C.50 I (inverted W-18) [ 188]   Reggiane Re 103 R.C.57 I (inverted W-18) [ 188]   Reggiane Re 103 R.C.48 (inverted W-18) [ 188]   Reggiane Re 104 R.C.38 (V-12 derived from the Isotta Fraschini Asso L.121 R.C.40 ) [ 188]   Reggiane Re 105 R.C.100 I (inverted W-18) [ 188]   Reggiane H-24 [ 188]   Régnier R1 Régnier 2 [ 16]   [ 36]   Régnier 4B (derived from de Havilland Gipsy) Régnier 4D.2 Régnier 4E.0 Régnier 4F.0 Régnier 4JO [ 189]   Régnier 4KO  Régnier 4LO    Régnier 4L   [ 36]   Régnier 4R [ 36]   Régnier 6B Régnier 6C Régnier 6GO Régnier 6R [ 36]   Régnier 6RS [ 36]   Régnier R161-01 [ 190]   Régnier Martinet [ 190]   Régnier 12Hoo Renard (Société anonyme des avions et moteurs Renard  / Alfred Renard, Belgium) [ 191]  
Renault Source: Hartmann [ 192]   except where noted.
 Renault 50/60 hp , 8A & 8Aa, air-cooled V-8  Renault 70 hp , 8Ab & 8C, type WB/WC, air-cooled V-8 Renault 35/40  hp, 4A, water-cooled I-4 Renault 25/30  hp, 4B, air-cooled I-4 Renault 30  hp, 8B, air cooled V-8, reduced 70mm bore  Renault 75 hp , type WX, air-cooled V-8 [ 193]  :   644    Renault 80 hp , 8Ca, type WS, air-cooled V-8  Renault 90 hp , 12A, air-cooled V-12  Renault 100 hp , 12B, air-cooled V12 Renault 110  hp, 12Da, air-cooled V-12 Renault 120  hp, 12Db, air-cooled V-12  Renault 130 hp , 12Dc, air-cooled V-12  Renault 8G  14.7  L (900  cu  in) 50 deg V-8 series  Renault 12E 18  L (1,100  cu  in) 50 deg V-12 series Renault 12Eb 220  hp (160  kW) Renault 12Ec 235  hp (175  kW)   Renault 12F  22  L (1,300  cu  in) 50 deg V-12 series  Renault 12G 330  hp (250  kW) 50 deg V-12 Renault 12H 30.46  L (1,859  cu  in) 50 deg V-12 series Renault 12Ha 450  hp (340  kW) Renault 12Hd 480  hp (360  kW) Renault 12He 500  hp (370  kW) Renault 12Hg 550  hp (410  kW)  Renault 12J 43.4  L (2,650  cu  in) 60 deg V-12 series Renault 12Ja 450  hp (340  kW) Renault 12Jb 500  hp (370  kW) Renault 12Jc 550  hp (410  kW)  Renault 12K 43.4  L (2,650  cu  in) 50 deg V-12 series Renault 12Ka 450  hp (340  kW) Renault 12Kb 450  hp (340  kW) Renault 12Kd 480  hp (360  kW) Renault 12Ke 500  hp (370  kW) Renault 12Kg 550  hp (410  kW)  Renault 12M V-12 series [ 193]  :   649–652  Renault 12M 550  hp (410  kW) 37.17  L (2,268  cu  in) Renault 12Mc 830  hp (620  kW) 43.46  L (2,652  cu  in) Renault 12Md 850  hp (630  kW) 43.46  L (2,652  cu  in)   Renault 4P  6.33  L (386  cu  in) I-4 series (Bengali 4 )    Renault 6P  9.5  L (580  cu  in) inverted I-6 series - (Bengali 6  early models)  Renault 9C 20.7  L (1,260  cu  in) 9-cylinder radial series Renaut 9C 320  hp (240  kW) Renault 9Ca 350  hp (260  kW)  Renault 7A 100  hp (75  kW) 7-cylinder radial Renault 7B 100  hp (75  kW) 7-cylinder radial (short stroke version of the 7A) [ 193]  :   657   Renault 12Ncr 2,000  hp (1,500  kW) (1931 Coupe Schneider ) Renault 18Jbr 700  hp (520  kW) W-18 Renault 9Pa 250  hp (190  kW) 9-cylinder radial  Renault 6Q  9.5  L (580  cu  in) inverted I-6 series (Bengali 6  late models)  Renault 9F 29.15  L (1,779  cu  in) 9-cylinder radial series [ 193]  :   657  Renault 9Fas 600  hp (450  kW) Renault 9Fasr 680  hp (510  kW) - geared version of the 9Fas  Renault 14F 45.34  L (2,767  cu  in) 14-cylinder twin row radial [ 193]  :   657–658  Renault 14Fas 1,000  hp (750  kW). Renault 14Fasr 1,020  hp (760  kW) - geared version of the 14Fas   Renault 12R  19  L (1,200  cu  in) air-cooled inverted V-12 series  Renault 14T 45.34  L (2,767  cu  in) 14-cylinder twin row radial [ 193]  :   658  Renault 14T.01 1,020  hp (760  kW) - Direct drive. Clockwise rotation. Renault 14T.02 1,020  hp (760  kW) - Direct drive. Counterclockwise rotation. Renault 14T.03 1,000  hp (750  kW) - Geared. Clockwise rotation. Renault 14T.04 1,000  hp (750  kW) - Geared. Counterclockwise rotation.  Renault 12Drs 519  hp (387  kW) V-12 [ 193]  :   659   R.E.P. R.E.P. 20/24  hp 5-cyl. 85   mm ×   95   mm (3.35   in ×   3.74   in)  [ 2]   R.E.P. 30/34  hp 7-cyl. 85   mm ×   95   mm (3.35   in ×   3.74   in)  [ 2]   R.E.P. 95  hp 7-cyl. 110   mm ×   160   mm (4.33   in ×   6.3   in)  [ 2]   R.E.P. 40/48  hp 10-cyl. 85   mm ×   95   mm (3.35   in ×   3.74   in)  [ 2]   R.E.P. 60  hp 14-cyl. 85   mm ×   95   mm (3.35   in ×   3.74   in)  [ 2]   R.E.P. 60  hp 5-cyl fan 110   mm ×   160   mm (4.3   in ×   6.3   in)  [ 32]   R.E.P. 50  hp 5-cyl fan 100   mm ×   140   mm (3.9   in ×   5.5   in)  [ 32]   R.E.P. 75  hp 6-cyl R.E.P. 60  hp 7-cyl R.E.P. 85  hp 7-cyl radial 110   mm ×   160   mm (4.3   in ×   6.3   in)  [ 32]   Rex (Flugmachine Rex GesellschaftG.m.b.H. )
Rheinische Rheinische 35  hp 3-cyl fan 105   mm ×   130   mm (4.1   in ×   5.1   in)  [ 2]   Rheinische 50/60  hp 5-cyl radial 120   mm ×   140   mm (4.7   in ×   5.5   in)  [ 2]   Rheinische 70  hp 4-cyl in-line 120   mm ×   140   mm (4.7   in ×   5.5   in)  [ 2]   Rheinische 100  hp 6-cyl in-line 120   mm ×   140   mm (4.7   in ×   5.5   in)  [ 2]   Rheinmetall 109-502 [ 37]   Rheinmetall 109-505 [ 37]   Rheinmetall 109-515 rocket (solid fuel) [ 37]   Rheinmetall Rheintochter R 1 first stage [ 37]   Rheinmetall Rheintochter R 1 second stage [ 37]   Rheinmetall Rheintochter R 3 first stage [ 37]   Rhenania (Rhenania Motorenwerke)
Rhenania 11-cyl. rotary engine [ 2]   [ 11]   Ricardo Ricardo-Burt S55/4 [ 3]   [ 2]   Ricardo-Halford-Armstrong R.H.A. [ 3]   [ 2]   (Rex-Simplex Automobilwerke)
Richard & Hering engines [ 2]   Richardson (Archibald and Mervyn, Sydney Australia)
Roberts (Roberts Motor Company  / E.W. Roberts, Sandusky. Ohio)
Roberts 50  hp 4-cyl in-line 4.5   in ×   5   in (110   mm ×   130   mm)  [ 2]   Roberts 75  hp 6-cyl in-line 4.5   in ×   5   in (110   mm ×   130   mm)  [ 2]   Roberts 4-X. Roberts 6-X 100  hp 5   in ×   5   in (130   mm ×   130   mm)  [ 2]   Roberts 6-XX 200  hp 6.5   in ×   6   in (170   mm ×   150   mm)  [ 2]   Roberts 6-Z Roberts E-12 350  hp 6   in ×   6.5   in (150   mm ×   170   mm)  [ 2]   Robinson (Grinnell Aeroplane Co. / William C. Robinson)
Robinson 60  hp Robinson 100  hp Rocket Propulsion Establishment Rollason Rollason Ardem RTW Rollason Ardem 4 CO2 FH mod Rolls-Royce Limited Sources:  Piston engines, Lumsden, [ 3]   gas turbine and rocket engines, Gunston. [ 14]   [ 59]  
Note: For alternative 'RB' gas turbine designations please see the Rolls-Royce aero engine  template. 
Rolls-Royce Holdings Note: For alternative 'RB' gas turbine designations please see the Rolls-Royce aero engine  template. 
Rossel-Peugeot (Frédéric Rossel et les frères Peugeot )
Rossel-Peugeot 100  hp 4-cyl in-line 140   mm ×   140   mm (5.5   in ×   5.5   in)  [ 2]   Rossel-Peugeot 30  hp 7-cyl rotary 109   mm ×   110   mm (4.3   in ×   4.3   in)  [ 2]   Rossel-Peugeot 40  hp 7-cyl rotary 110   mm ×   110   mm (4.3   in ×   4.3   in)  [ 2]   Rossel-Peugeot 50  hp 7-cyl rotary 110   mm ×   110   mm (4.3   in ×   4.3   in)  [ 2]   [ 197]   Rotex Electric Rotex Electric REB 20 Rotex Electric REB 30 Rotex Electric REB 50  Rotex Electric REB 90   Rotex Electric REG 20 Rotex Electric REG 30 Rotex Electric RET 30 Rotex Electric RET 60 Rotex Electric REX 30 Rotex Electric REX 50 Rotex Electric REX 90 Rover Rover Gas Turbines Ltd.
Rover W.2B Rover Marton [ 59]   Rover Moreton [ 59]   Rover Napton [ 59]   Rover Wolston [ 59]   Rover T.P.90 [ 10]   Rover/Lucas TJ125 (CT3201) [ 146]   Rover 1S60 Rover 1S/60 [ 80]   Rover 2S/150A [ 41]   Rover 748 [ 41]   Rover 801 [ 41]   Rover TJ-125 [ 41]   Royal Aircraft Establishment RRJAEL (Rolls-Royce and Japanese Aero-engines Ltd.)
Ruston-Proctor Ruston-Proctor 200  hp 6-stroke rotary(6-cyl 2-stroke?) [ 2]   Ryan-Siemens (Ryan Aeronautical Corp/Siemens-Halske)
S Safran Helicopter Engines SAI Ambrosini Ambrosini P-25 – 2-cyl. horizontally opposed Salmson  Salmson air-cooled aero-engines   Salmson 3A, 3Ad Salmson 5A, 5Ac, 5Ap, 5Aq Salmson 6A, 6Ad, 6Af Salmson 6TE, 6TE.S [ 36]   Salmson 7A, 7AC, 7ACa, 7Aq Salmson 7M Salmson 7O, 7Om Salmson 9AB, 9ABa, 9ABc Salmson 9AC Salmson 9AD Salmson 9AE, 9AEr, 9AErs Salmson 9NA, 9NAs, 9NC, 9ND, 9NE, 9NH Salmson 11B Salmson 12C W-12? Salmson 12V, 12Vars – V-12  Salmson water-cooled aero-engines   Salmson A – 2x7-cylinder barrel engine, 1 built Salmson B – 2x7-cylinder barrel engine, 1 built Salmson C – 2x7-cylinder barrel engine, 1 built Salmson E – 2x9-cylinder barrel engine, 1 built Salmson F – 2x9-cylinder barrel engine, 1 built Salmson G – 2x7-cylinder barrel engine, 1 built Salmson K – 2x7-cylinder barrel engine, 1 built  Salmson A.7    Salmson A.9    Salmson 2A.9  – a 2-row radial engine  Salmson B.9  water-cooled radial engine  Salmson C.9  water-cooled radial engine  Salmson M.9  water-cooled radial engine  Salmson P.9  water-cooled radial engine  Salmson R.9  water-cooled radial engine  Salmson M.7  water-cooled radial engine  Salmson 2M.7  water-cooled 2-row radial engine Salmson 9.Z, 9.Za, 9.Zc, 9.Zm Salmsons 18 cylinder in-line radial engines Salmson 18Z (1919) 9-bank water-cooled in-line radial 2 x 9Z on common 2-throw crankshaft  Salmson 18AB  (1920s) 9-bank air-cooled in-line radial [ 35]   Salmson 18Cm, 18Cma, 18Cmb – (late 20s early 30s) 9-bank water-cooled (air-cooled heads) in-line radial Salmson-Szydlowski SH.18 – 18-cyl 2-stroke radial diesel engine (nine banks of two in-line) [ 199]   Licence-built Saunders-Roe Saunders-Roe 45  lbf pulse-jet Saunders-Roe 120  lbf pulse-jet Schliha (Schlüpmannsche Industrie und Handelsgesellschaft )
Schmidding Schmidding 109-505 rocket (solid fuel) Schmidding 109-513 [ 37]   Schmidding 109-533 [ 37]   Schmidding 109-543 [ 37]   Schmidding 109-553 [ 37]   Schmidding 109-563 [ 37]   Schmidding 109-573 [ 37]   Schmidding 109-593 [ 37]   Schmidding 109-603 [ 37]   Schroeter Schroeter 89  hp 6-cyl in-line 124   mm ×   160   mm (4.9   in ×   6.3   in)  [ 2]   Schwade (Otto Schwade GmbH, Erfurt, Germany)
Schwade Stahlherz engine [ 2]   Scott Scott A2S Flying Squirrel [ 3]   Scott 40  hp 2-stroke Scott 1939 2-stroke Scott 1950 2-stroke V4 Security (Security Aircraft Corporation)
SELA (Société d'Etude pour la Locomotion Aérienne  [SELA])
Seld (Seld-Kompressorbau G.m.b.H. )
SEPR SEPR 9 SEPR 16 SEPR 24  SEPR 25   SEPR 35 SEPR 44 SEPR 50 SEPR 55 SEPR 57 SEPR 63 SEPR 65 SEPR 66 [ 80]   SEPR 73 SEPR 732 SEPR 734  SEPR 737 SEPR 738 SEPR 739 (Stromboli )  SEPR 78 SEPR 81A SEPR 167 SEPR 178 SEPR 189 SEPR 192 SEPR 200 (Tramontane ) SEPR 201 SEPR 202  SEPR 251 SEPR 481 [ 80]   SEPR 504 SEPR 505 SEPR 5051 SEPR 5052 SEPR 50531 SEPR 5054  SEPR 631 [ 80]   SEPR 683 SEPR 684 SEPR 685  SEPR 686 SEPR 703 SEPR 705 SEPR 706 SEPR 740  SEPR 841    SEPR 844   SEPR Topaze SEPR Diamante SEPR C2 SERMEL SERMEL TRS 12 SERMEL TRS 18 SERMEL TRS 25 SFFA (Société Française de Fabrication Aéronautique , France)
SFFA Type A 100  hp 7-cyl [ 36]   SFFA Type B 45  hp 3-cyl [ 36]   Shimadzu Shimadzu 80  hp 9-cyl rotary 105   mm ×   140   mm (4.1   in ×   5.5   in)  [ 2]   Shimadzu 90  hp V-8  110   mm ×   110   mm (4.5   in ×   4.5   in)  [ 2]   Shvetsov Data from: Russian Piston Aero Engines [ 72]  
S.H.K. S.H.K. 70  hp 7-cyl rotary 110   mm ×   140   mm (4.3   in ×   5.5   in)  [ 2]   S.H.K. 140  hp 14-cyl rotary 110   mm ×   140   mm (4.3   in ×   5.5   in)  [ 2]   S.H.K. 90  hp 7-cyl rotary 124   mm ×   140   mm (4.9   in ×   5.5   in)  [ 2]   S.H.K. 180  hp 14-cyl rotary 124   mm ×   140   mm (4.9   in ×   5.5   in)  [ 2]   Simms Simms 51  hp V-6 4.33   in ×   4.33   in (110   mm ×   110   mm)  [ 2]   [ 18]   Skoda G-594 Czarny Piotruś Skoda L Skoda Lr Skoda S.14 [ 35]   Skoda S.20 [ 35]   Skoda Hispano-Suiza W-12 [ 35]   Skymotors Skymotors 70 Skymotors 70A Smallbone (Harry Eales Smallbone)
Smallbone 4-cyl wobble-plate axial piston engine [ 139]   Smalley (General Machinery Co)
Smith Smith Static [ 3]   Smith 300  hp radial SMPMC (South Motive Power and Machinery Complex SMPMC prev Zhuzhou Aeroengine Factory)
SMPMC HS-5 – Chinese production of ShvetsovvASh-62 SMPMC HS-6 – Chinese production of Ivchenko AI-14   SMPMC WZ-8 – Chinese production of Turbomeca Arriel   SMPMC WZ-9 SMPMC WZ-16 SNCAN SNCAN Ars 600 [ 9]   SNCAN Ars 900 [ 9]   SNCAN Pulse-jet [ 9]   SNECMA Société nationale d'études et de construction de moteurs d'aviation  formed by nationalisation of Gnome et Rhône  in 1945. On French engine designations even sub-series numbers (for example Gnome-Rhône 14N-68 ) rotated anti-clockwise (LH rotation) and were generally fitted on the starboard side, odd numbers (for example Gnome-Rhône 14N-69 ) rotated clockwise (RH rotation) and were fitted on the port side.
SNCM (Société Nationale de Constructions de Moteurs  – Lorraine post 1936)
SOCEMA (Société de Construction et d'Équipments Méchaniques pour l'Aviation )
SOCEMA TGA 1 [ 208]   [ 47]   SOCEMA TG 1008 [ 47]   SOCEMA TGAR 1008 [ 47]   SOCEMA TP.1 SOCEMA TP.2 Solar Solar PJ32 pulse-jet Solar T45 (Mars 50  hp gas turbine)  Solar T62  Titan  Solar T66  free turbine Titan Solar T-150 [ 10]   Solar Centaur 40 Solar Centaur 50 Solar Jupiter (500  hp gas turbine) Solar Mars 90 [ 209]   Solar Mars 100 [ 209]   Solar Mercury 50 Solar Saturn [ 10]   Solar Saturn 10 Solar Saturn 20 Solar Taurus 60 Solar Taurus 65 Solar Taurus 70 Solar Titan 130 Solar Titan 250 Solar A-103B (early detachable afterburner for J34) [ 52]   Solar AAP-80 [ 210]   Solar M-80 [ 52]   Solar MA-1 (Mars) [ 209]   Solar T-41M-1 [ 80]   Solar T-41M-2 [ 80]   Solar T-41M-5 [ 80]   Solar T-41M-6 [ 80]   Solar T-45M-1 (Mars) [ 209]   Solar T-45M-2 [ 80]   Solar T-45M-7 [ 80]   Solar T-300J-2 [ 80]   Solar T-520J [ 80]   Solar T-522J [ 80]   Solo (Solo Kleinmotoren GmbH)
Soloviev Source:Gunston.  [ 14]  
Soloy (Soloy Conversions / Soloy Dual Pak Inc.)
Soverini (Soverini Freres et Cie)
Soverini-Echard 4D [ 10]   Soverini-Echard 4DR [ 10]   Soviet union experimental engines AD-1 (diesel engine) [ 72]   AD-3 (diesel engine) [ 72]   AD-5 (diesel engine) [ 72]   FED-8 (diesel engine) [ 72]   MB-100 (A.M. Dobrotvorskiy) [ 72]   MB-102 (A.M. Dobrotvorskiy) [ 72]   MSK (diesel engine) [ 72]   AN-1 (diesel engine) [ 72]   AN-1A (diesel engine) [ 72]   AN-1R (diesel engine) (geared) [ 72]   AN-1RTK (diesel engine) (geared, turbo-supercharged) [ 72]   AN-5 (diesel engine) (N – Neftyanoy  – of crude oil type – 24-cyl rhombic opposed piston) [ 72]   AN-20 (diesel engine) (24-cyl rhombic opposed piston) [ 72]   BD-2A (diesel engine) [ 72]   M-1 (aero-engine) (V-12 a.k.a. M-116 – S.D. Kolosov) [ 72]   M-5-400 M-9 (L.I. Starostin – swashplate engine) M-10 (diesel engine) (5-cyl radial) [ 72]   M-16 (aero-engine) (4-cyl horizontally opposed – S.D. Kolosov) [ 72]   M-20 (diesel engine) (48-cyl rhombic opposed piston) [ 72]   M-30 (diesel engine) [ 72]   M-31 (diesel engine) [ 72]   M-35 (diesel engine) [ 72]   M-40 (diesel engine) [ 72]   M-47 (aero-engine) – fitted to Ilyushin Il-20 M-50R (diesel engine) (marine rhombic opposed piston) [ 72]   M-52 (diesel engine) [ 72]   M-87D (diesel engine) [ 72]   M-116 (aero-engine) (V-12 a.k.a. M-1 – S.D. Kolosov) [ 72]   M-127 (X-24 conrod free) [ 72]   M-127K (X-24 conrod free) [ 72]   M-130 (aircraft engine) (H-24) [ 72]   M-224 (diesel engine) [ 72]   M-501 (diesel engine) [ 72]   MB-4 (X-4 MB – O Motor Besshatunniy  – con-rod free engine – S.S. Balandin) [ 72]   MB-4b (X-4 MB – O Motor Besshatunniy  – con-rod free engine – S.S. Balandin) [ 72]   MB-8 (X-8 MB – O Motor Besshatunniy  – con-rod free engine – S.S. Balandin) [ 72]   MB-8b (X-8 MB – O Motor Besshatunniy  – con-rod free engine – S.S. Balandin) [ 72]   MF-45Sh (M-47) D-11 (diesel engine) (5-cyl radial based on the M-11) [ 72]   N-1 (diesel engine) (N – Neftyanoy  – of crude oil type) [ 72]   N-2 (diesel engine) [ 72]   N-3 (diesel engine) [ 72]   N-4 (diesel engine) [ 72]   N-5 (diesel engine) [ 72]   N-6 (diesel engine) [ 72]   N-9 (diesel engine) [ 72]   OMB (OMB – O Motor Besshatunniy  – con-rod free engine – S.S. Balandin) [ 72]   OMB-127 (X-12 MB – O Motor Besshatunniy  – con-rod free engine – S.S. Balandin) [ 72]   OMB-127RN (X-12 MB – O Motor Besshatunniy  – con-rod free engine – S.S. Balandin) [ 72]   Sperry (Lawrence Sperry Aircraft Co)
Spyker Spijker 135  hp rotary [ 11]   Sport Plane Power (Sport Plane Power Inc.)
Sport Plane Power K-100A [ 24]   Star (Star Engineering Co. ltd.)
Stark (Stark Flugzeugbau KG )
Statax (Statax Engine Company Ltd. – prev. Statax-Motor of Zurich)
Statax 3cyl 10  hp axial Statax 5cyl 40  hp axial [ 3]   Statax 7cyl 80  hp axial [ 3]   Statax 10cyl 100  hp axial [ 3]   Straughan (Straughn Aircraft Corp)
Straughan AL-1000 (Ford model 1A) Sturtevant Sturtevant 1913 40  hp [ 2]   Sturtevant 1913 60  hp [ 2]   Sturtevant 5 140  hp V-8 4.5   hp ×   5.5   hp (3.4   kW ×   4.1   kW)  [ 2]   Sturtevant 5A 140  hp V-8 4.5   hp ×   5.5   hp (3.4   kW ×   4.1   kW)  [ 2]   Sturtevant 5A-4 Sturtevant 5A-41 ⁄ 2   hp V-8 5   hp ×   5.5   hp (3.7   kW ×   4.1   kW)  [ 2]   [ 11]   Sturtevant 7 300  hp V-12 5   hp ×   5.5   hp (3.7   kW ×   4.1   kW)  [ 2]   [ 11]   Sturtevant D-4 48  hp 4IL 4.5   hp ×   4.5   hp (3.4   kW ×   3.4   kW)  [ 2]   Sturtevant D-6 86  hp 6IL 4.5   hp ×   4.5   hp (3.4   kW ×   3.4   kW)  [ 2]   Sturtevant E-6 100  hp 6IL 4.5   hp ×   6   hp (3.4   kW ×   4.5   kW)  [ 2]   Survol-de Coucy Survol-de Coucy Pygmée 40  hp T Tatra Tatra T100 [ 36]   Tatra T101 TBS (Turbinenbau Schuberth Schwabhausen GmbH)
Technopower (Technopower Inc.)
Thermo-Jet (Thermo-Jet Standard Inc.)
Thermo-Jet J3-200 [ 24]   Thermo-Jet J5-200 [ 24]   Thermo-Jet J7-300 [ 44]   Thermo-Jet J8-200 [ 44]   Thermo-Jet J10-200 [ 44]   Thermo-Jet J13-202 [ 44]   Thames (Thames Ironworks and Ship[building Co.Ltd.)
Thiokol Data from:Jane's All the World's Aircraft 1962-3 [ 10]  
Thiokol LR44 Thiokol LR58 Thiokol LR62  Thiokol LR99   Thiokol M6 (TX-136) Thiokol M10 (TX-10) Thiokol M12 (TX-12) Thiokol M16 (TX-16) Thiokol M18 (TX-18) Thiokol M19 Thiokol M20 (TX-20) Thiokol M30 (TX-30) Thiokol M33 (TX-33) Thiokol M46 Thiokol M51 (TX-131-15) Thiokol M55 Thiokol M58 (TX-58) Thiokol TU-122 Thiokol TX-135 Thiokol TD-174 Guardian Thiokol TE-29 Recruit Thiokol TD-214 Pioneer Thiokol TE-289 Yardbird Thiokol TE-307 Apache Thomas (Thomas Aeromotor Company, United States)
Thomas 120  hp 4-cyl in-line [ 2]   Thomas 8 135  hp 4   in ×   5.5   in (100   mm ×   140   mm)  [ 2]   Thomas 88 150  hp 4.125   in ×   5.5   in (104.8   mm ×   139.7   mm)  [ 2]   [ 11]   Thomas 890 250  hp 4.8125   in ×   6   in (122.24   mm ×   152.40   mm)  [ 2]   Thorotzkai (Thorotzkai Péter alt, spelling Thoroczkay) [ 221]  
Thorotzkai 12  hp Thorotzkai 22  hp 3cyl. radial Thorotzkai 35  hp opposed twin Thorotzkai typ.7 35  hp Thorotzkai 120  hp Thorotzkai Gamma-III (35  hp 3cyl. radial) Thunder (Thunder Engines Inc.)
Tiger (The Light Manufacturing and Foundry Company)
Tips Tips 480  hp 250  hp 4.5   in ×   6   in (110   mm ×   150   mm)  [ 2]   (18  cyl., 1717.67  ci, air- and water-cooled rotary engine. At rated RPM the crankshaft rotated at 1800  rpm, propeller shaft at 1080  rpm and the engine body at 60  rpm. Cooling was by direct air flow and tubular radiators between the cylinders, with water circulating without hoses or pumps.) [ 2]   Tomonoo (Tomon Naoji)
Tomono 90  hp 6-cyl in-line 4.5   in ×   4.375   in (114.3   mm ×   111.1   mm)  [ 2]   Tone Tone 2V9 180  hp 4.5   in ×   4.375   in (114.3   mm ×   111.1   mm)  [ 2]   Tokyo Gasu Denki Amakaze Tokyo Gasu Denki Hatakaze Tokyo Gasu Denki Jimpu 3 Tokyo Gasu Denki Kamikaze [ 36]   Tokyo Gasu Denki Tempu Gasuden Amakaze Gasuden Hatakaze Gasuden Jimpu 3  Gasuden Kamikaze   Gasuden Tempu Torque Master (Valley Engineering)
Torque Master 1835cc [ 222]   Torque Master 1915cc [ 222]   Torque Master 2180cc [ 222]   Tosi Tosi 450  hp V-12 130   mm ×   190   mm (5.1   in ×   7.5   in)  [ 2]   Train (Établissements E. Train  / Société des Constructions Guinard)
Trebert Trebert 60  hp 6-cyl rotary barrel engine 3.75   in ×   4.25   in (95   mm ×   108   mm)  [ 2]   Trebert 100  hp V-8 [ 2]   Turbomeca Source:Gunston [ 14]   except where noted 
Turbo Research  Turbo Research  was taken over by Avro Canada
Turbo Research TR.1 – abandoned design study Turbo Research TR.2 – abandoned design study Turbo Research TR.3 – abandoned design study Turbo Research TR.4 – see Avro Canada Chinook   Turbo Research TR.5 – see Avro Canada Orenda   Twombly Motor Company Twombly Motor Company  (Willard Irving Twombly)
A 50  hp 7-cylinder rotary; 4   in ×   4.5   in (100   mm ×   110   mm) , 1912. This page is based on this 
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