| FY1942 Prototype Engine List (Part 1) | April 15, 1942 3rd Department | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Designation | Company | Priority Order | Type (Reduction Ratio) | Bore x Stroke Displacement (CR) | Rated Revs x Altitude HP Altitude | Takeoff Revs x HP | Diameter x Length Length x Width x Height | Weight | Private Order Date | Completion Schedule (Unit 1) | Mounted Airframes | Summary |
| Ha-112 | Mitsubishi | I-A | 14-Cylinder Twin-Row Radial Air-Cooled (0.633) | 140mm x 150mm 32.3ℓ (7.0) | 2500rpm x 1210HP (I) 2500rpm x 1090HP (II) 2750m (I) 5900m (II) | 2600rpm x 1300HP | 1218mm x 1660mm | 618kg | 12/1940 | 11/1941 Completed | Ki-71 (Aviation Arsenal) | A8-E2S36 |
| Ha-212 | I-B | 14-Cylinder Twin-Row Radial Air-Cooled (0.625) with Extended Shaft | 140mm x 130mm 28.0ℓ (7.0) | 2600rpm x 1050HP (I) 2600rpm x 950HP (II) 2800m (I) 5800m (II) | 2700rpm x 1080HP | 1118mm x 1860mm | 595kg | 12/1940 | 3/1941 Completed | A14-F1S36 | ||
| Ha-312 | II | 14-Cylinder Twin-Row Radial Air-Cooled (0.625) with Extended Shaft and Turbocharger | 140mm x 130mm 28.0ℓ (7.0) | Expected: 2600rpm x 1050HP (I) 2600rpm x 1050HP (II) 2800m (I) 9000m (II) | 2700rpm x 1080HP | 1118mm x 1460mm (short shaft) 1118mm x 1860mm (long shaft) | ~595kg | 12/1940 | 4/1942 (short shaft) 7/1942 (long shaft) | A14-F1S39T | ||
| Ha-412 | II | 14-Cylinder Twin-Row Radial Air-Cooled with Turbocharger | 140mm x 130mm 28.0ℓ | 11/1941 | 1/1943 | |||||||
| Ha-111 (Plan 1) | I-B | 14-Cylinder Twin-Row Radial Air-Cooled (0.684) Fluid Coupling | 150mm x 170mm 42.1ℓ (6.5) | Expected: 2500rpm x 1540HP 5700m | 2620rpm x 1850HP | 1340mm x 1607mm | 740kg | 12/1940 | 2/1942 Completed | A10-F2S6M with cooling fan | ||
| Ha-111 (Plan 2) | I-B | 14-Cylinder Twin-Row Radial Air-Cooled (0.54 & 0.684) Fuel Injection | 150mm x 170mm 42.1ℓ (6.5) | Expected: 2500rpm x 1720HP (I) 2500rpm x 1550HP (II) 2100m (I) 5700m (II) | 2620rpm x 1850HP | 1340mm x 1607mm | ~740kg | 12/1940 | 3/1942 | Ki-85 (Kawasaki) | A10-F2S26FM up to unit 5 uses 0.684 red. ratio with cooling fan | |
| Ha-211 (Plan 1) | I-B | 18-Cylinder Twin-Row Radial Air-Cooled (0.47) | 140mm x 150mm 41.6ℓ (7.0) | Expected: 2700rpm x 1960HP (I) 2700rpm x 1800HP (II) 2000m (I) 6000m (II) | 2800rpm x 2200HP | 1230mm x 1988mm | 1050kg | 12/1940 | 12/1941 Completed | Ki-65 (Aviation Arsenal) Ki-74 (Tachikawa) Ki-83 (Mitsubishi) Ki-85 Performance Improvement (Kawasaki) | A20-A1S26M with cooling fan | |
| Ha-211 (Plan 2) | I-B | 18-Cylinder Twin-Row Radial Air-Cooled (0.47) 2-Stage Supercharger, Fluid Coupling, Fuel Injection | 140mm x 150mm 41.6ℓ (7.0) | Expected: 2700rpm x 1960HP (I) 2700rpm x 1740HP (II) 2000m (I) 8500m (II) | 2800rpm x 2200HP | 1230mm x 2184mm | ~1150kg | 12/1940 | 5/1942 | A20-B1S29FM with cooling fan | ||
| Ha-104 | I-A | 18-Cylinder Twin-Row Radial Air-Cooled (0.588) | 150mm x 170mm 54.1ℓ (6.5) | 2350rpm x 1870HP (I) 2350rpm x 1730HP (II) 1700m (I) 5000m (II) | 2450rpm x 1900HP | 1372mm x 1802mm | 956kg | 12/1938 | 3/1942 | Ki-67 (Mitsubishi) Ki-70 (Tachikawa) | A18-A1S25 (unit 8 onward) direct-drive type completed 12/1939 | |
| Ha-114 | III | 18-Cylinder Twin-Row Radial Air-Cooled (0.588) | 150mm x 170mm 54.1ℓ (6.5) | Expected: 2400rpm x 2000HP (I) 2400rpm x 1860HP (II) 1200m (I) 5000m (II) | 2500rpm x 2200HP | 1372mm x 1870mm | ~960kg | 12/1940 | 3/1942 | A18-A4S25 with cooling fan | ||
| Ha-214 | I-B | 18-Cylinder Twin-Row Radial Air-Cooled (0.457) Fluid Coupling, Fuel Injection | 150mm x 170mm 54.1ℓ (6.7) | Expected: 2450rpm x 2350HP (I) 2450rpm x 2000HP (II) 1500m (I) 8000m (II) | 2600rpm x 2700HP | 1340mm x 2357mm | 1340kg | 12/1940 | 1/1942 Completed | Ki-67 Performance Improvement (Mitsubishi) | A18-E1S28FM research with twin contra-rotating propeller with cooling fan | |
| Ha-108 | III | 28-Cylinder Multi-Row Radial Air-Cooled (0.457) | 140mm x 160mm 69.0ℓ (7.0) | Expected: 2600rpm x 2220HP 6000m | 2800rpm x 3000HP | 1300mm x 3000mm | Expected: 1750kg | 12/1938 | 4/1943 | A19-A1S6FM | ||
| Ha-203 | II | 24-Cylinder H Liquid-Cooled (0.5) Double Contra-Rotating Propeller, Fuel Injection | 150mm x 170mm 72.0ℓ (6.5) | Expected: 2500rpm x 2450HP (I) 2500rpm x 2250HP (II) 2000m (I) 5000m (II) | 2650rpm x 2600HP | 3218mm x 860mm x 1414mm | ~1490kg | 12/1938 | 4/1942 | B6-A2S25F | ||
| Ha-123 | III | 24-Cylinder H Liquid-Cooled | Required: 2000HP | 11/1941 | 2/1944 | |||||||
| Ha-302 | IV-A | 24-Cylinder H Liquid-Cooled (0.5) with Turbocharger, Fuel Injection | 150mm x 170mm 72.0ℓ (7.0) | Expected: 2500rpm x 2750HP (I) 2500rpm x 2750HP (II) 2000m (I) 8000m (II) | 2650rpm x 3000HP | 3218mm x 860mm x 1414mm | Expected: 1490kg | 10/1939 | 9/1943 | B6-B2S28FTM weight doesn’t include turbo | ||
| Ha-300 | IV-A | 16-Cylinder H Liquid-Cooled (0.44) Compression Ignition, with Turbocharger | 110mm x (170mm x 2) 51.7ℓ (16) | Expected: 2600rpm x 2700HP 7000m | Expected: 2800rpm x 3000HP | 3395mm x 1100mm x 1400mm | Expected: 1700kg (incl. turbo) | 10/1939 | 12/1943 | D4-A1S6T | ||
| Ha-112 II | I-A | 14-Cylinder Twin-Row Radial Air-Cooled (0.633) | 140mm x 150mm 32.3ℓ (7.0) | Expected: 1350HP (I) 1200HP (II) 2000m (I) 6000m (II) | Expected: 1400HP | 1218mm x 1660mm | 614kg | 4/1942 | Ki-45 Performance Improvement (Kawasaki) Ki-46 2nd Performance Improvement (Mitsubishi) | A8-E3S26MF | ||
| FY1942 Prototype Engine List (Part 2) | April 15, 1942 3rd Department | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Designation | Company | Priority Order | Type (Reduction Ratio) | Bore x Stroke Displacement (CR) | Rated Revs x Altitude HP Altitude | Takeoff Revs x HP | Diameter x Length Length x Width x Height | Weight | Private Order Date | Completion Schedule (Unit 1) | Mounted Airframes | Summary |
| Ha-105 Special | Nakajima | I-B (1941) | 14-Cylinder Twin-Row Radial Air-Cooled (0.5) Farman-Style Reduction Gear | 130mm x 150mm 27.9ℓ (7.0) | 2700rpm x 1100HP (I) 2700rpm x 1030HP (II) 1600m (I) 4550m (II) | 2750rpm x 1180HP | 1150mm x 1629mm | 585kg | 10/1940 | 4/1941 Completed | Ki-77 (Tachikawa) | NAM-3T |
| Ha-115 | I-A | 14-Cylinder Twin-Row Radial Air-Cooled (0.6875) | 130mm x 150mm 27.9ℓ (7.0) | 2700rpm x 1150HP (I) 2700rpm x 990HP (II) 2800m (I) 5600m (II) | 2800rpm x 1140HP | 1150mm x 1470mm | 570kg | 12/1940 | 8/1941 Completed | Ki-43 Performance Improvement (Nakajima) Ki-48 Performance Improvement (Kawasaki) Ki-66 (Kawasaki) | NAM-3 Kai (Normal Rotation) | |
| Ha-215 | II | 14-Cylinder Twin-Row Radial Air-Cooled (0.5825) with Extended Shaft | 130mm x 150mm 27.9ℓ (7.0) | Expected: 2700rpm x 1100HP (I) 2700rpm x 980HP (II) 2850m (I) 6000m (II) | 2800rpm x 1130HP | 1150mm x 2139mm | 630kg | 12/1940 | 12/1941 Completed | NAM-3 Extended Shaft | ||
| Ha-315 | II | 14-Cylinder Twin-Row Radial Air-Cooled (0.5825) with 2-Stage 2-Speed Supercharger | 130mm x 150mm 27.9ℓ (7.0) | Expected: 3000rpm x 1360HP (Stage-I) 3000rpm x 1250HP (Stage-II I) 3000rpm x 1120HP (Stage-II II) 2000m (Stage-I) 5000m (Stage-II I) 8000m (Stage-II II) | 3000rpm x 1380HP | 1150mm x 1931mm | 730kg | 12/1940 | 12/1941 Completed | Ki-66 Performance Improvement (Kawasaki) | NAM-5 | |
| Ha-109 | I-A | 14-Cylinder Twin-Row Radial Air-Cooled (0.6875) | 146mm x 160mm 37.5ℓ (6.7) | 2600rpm x 1440HP (I) 2600rpm x 1320HP (II) 2100m (I) 5200m (II) | 2650rpm x 1520HP | 1263mm x 1575mm | 720kg | 6/1939 | 7/1941 Completed | Ki-44 Performance Improvement (Nakajima) Ki-49 1st Performance Improvement (Nakajima) | NAL-7 | |
| Ha-119 | I-B | 14-Cylinder Twin-Row Radial Air-Cooled (0.6875) | 146mm x 160mm 37.5ℓ (6.7) | 2600rpm x 1460HP (I) 2600rpm x 1360HP (II) 2700m (I) 6400m (II) | 2650rpm x 1520HP | 1263mm x 1575mm | ~720kg | 4/1942 | enlarged carburetor | |||
| Ha-45 | I-B | 18-Cylinder Twin-Row Radial Air-Cooled (0.5) | 130mm x 150mm 35.8ℓ (7.0) | 2900rpm x 1670HP (I) 2900rpm x 1450HP (II) 1800m (I) 5700m (II) | 2900rpm x 1820HP (Special) 2950rpm x 1650HP | 1180mm x 1786mm | 820kg | 12/1940 | 12/1941 Completed | Ki-84 (Nakajima) Ki-82 Test Plane (Nakajima) | NBA-11 | |
| Ha-145 | I-B | 18-Cylinder Twin-Row Radial Air-Cooled (0.5) with 2-Stage 2-Speed Supercharger | 130mm x 150mm 35.8ℓ (8.0) | Expected: 3000rpm x 1880HP (Stage-I) 3000rpm x 1700HP (Stage-II I) 3000rpm x 1450HP (Stage-II II) 2100m (Stage-I) 6000m (Stage-II I) 10500m (Stage-II II) | 3000rpm x 2000HP | 1180mm x 1995mm | ~950kg | 11/1941 | 9/1942 | Ki-82 (Nakajima) | NBA-21 | |
| Ha-245 | II | 18-Cylinder Twin-Row Radial Air-Cooled (0.5) with Turbocharger | 130mm x 150mm 35.8ℓ (8.0) | 3000rpm x 2000HP | 1180mm x 1995mm | Expected: 970kg | 11/1941 | NBA-51 | ||||
| Ha-103 | I-B (1941) | 14-Cylinder Twin-Row Radial Air-Cooled (0.5) | 155mm x 170mm 45.0ℓ (6.5) | 2500rpm x 1750HP (I) 2500rpm x 1600HP (II) 1400m (I) 4900m (II) | 2600rpm x 1870HP | 1390mm x 1817mm | 899kg | 2/1938 | 5/1940 Completed | NAK | ||
| Ha-113 | II | 14-Cylinder Twin-Row Radial Air-Cooled (0.578) with 2-Stage 2-Speed Supercharger | 155mm x 170mm 45.0ℓ (7.0) | Expected: 2600rpm x 2140HP (Stage-I) 2600rpm x 1900HP (Stage-II I) 2600rpm x 1750HP (Stage-II II) 2000m (Stage-I) 5500m (Stage-II I) 9000m (Stage-II II) | 2700rpm x 2300HP | 1390mm x 1841mm | ~1000kg | 12/1940 | NAK-3 Supercharger Research | |||
| Ha-107 | I-B | 18-Cylinder Twin-Row Radial Air-Cooled (0.5) | 150mm x 180mm 57.2ℓ (6.8) | 2400rpm x 2270HP (I) 2400rpm x 2100HP (II) 2150m (I) 4800m (II) | 2450rpm x 2300HP | 1442mm x 1957mm | 1104kg | 12/1938 | 8/1941 Completed | NAN | ||
| Ha-117 | I-B | 18-Cylinder Twin-Row Radial Air-Cooled (0.578) | 150mm x 180mm 57.2ℓ (7.0, 7.5) | Expected: 2450rpm x 2330HP (I) 2450rpm x 2200HP (II) 2600m (I) 5500m (II) | 2500rpm x 2600HP | 1443mm x 2069mm | ~1140kg | 12/1940 | 3/1942 Completed | Ki-49 2nd Performance Improvement (Nakajima) | NAN-3 | |
| Ha-217 | II | 18-Cylinder Twin-Row Radial Air-Cooled (0.415) Double Contra-Rotating Propeller, 2-Stage Vulkan | 155mm x 170mm 57.8ℓ (7.5) | Expected: 2600rpm x 2750HP (Stage-I) 2600rpm x 2450HP (Stage-II I) 2600rpm x 2200HP (Stage-II II) 2000m (Stage-I) 5500m (Stage-II I) 8500m (Stage-II II) | 2700rpm x 3000HP | 1380mm x 2878mm | Expected: 1450kg | 11/1941 | 1/1943 | BD-11 | ||
| Ha-39 | II | 18-Cylinder Inverted W Liquid-Cooled (0.5) | 146mm x 170mm 51.0ℓ (7.0) | Expected: 2500rpm x 1960HP (I) 2500rpm x 1780HP (II) 2000m (I) 5500m (II) | 2600rpm x 2100HP | 2427mm x 1112mm x 1350mm | 950kg | 3/1938 | 2/1942 Completed | NLH-11 | ||
| Ha-139 | III | 18-Cylinder Inverted W Liquid-Cooled (0.5) | 146mm x 170mm 51.0ℓ (7.0) | Expected: 2600rpm x 2160HP (I) 2600rpm x 1950HP (II) 1800m (I) 5800m (II) | 2700rpm x 2300HP | 2380mm x 975mm x 946mm | Expected: 900kg | 11/1941 | 12/1942 | NLH-21 | ||
| Ha-301 | IV-A | Required: 2500HP~3000HP ≥8000m | 10/1939 | NBB-11 | ||||||||
| FY1942 Prototype Engine List (Part 3) | April 15, 1942 3rd Department | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Designation | Company | Priority Order | Type (Reduction Ratio) | Bore x Stroke Displacement (CR) | Rated Revs x Altitude HP Altitude | Takeoff Revs x HP | Diameter x Length Length x Width x Height | Weight | Private Order Date | Completion Schedule (Unit 1) | Mounted Airframes | Summary |
| Ha-40 | Kawasaki | I-A | 12-Cylinder Inverted V Liquid-Cooled (0.645) Fluid Coupling, Fuel Injection | 150mm x 160mm 33.9ℓ (6.7) | 2400rpm x 1100HP 4500m | 2500rpm x 1170HP | 1722mm x 712mm x 1027mm | 575kg | 5/1939 | 7/1941 | Ki-61 (Kawasaki) | |
| Ha-140 | I-B | 12-Cylinder Inverted V Liquid-Cooled (0.593) Fluid Coupling, Fuel Injection | 150mm x 160mm 33.9ℓ (7.2) | Expected: 2600rpm x 1400HP 6000m | 2740rpm x 1500HP | 2050mm x 800mm x 1020mm | Expected: 680kg | 12/1940 | 6/1942 | Ki-61 Performance Improvement (Kawasaki) Ki-64 (Kawasaki) | ||
| Ha-240 | II | 12-Cylinder Inverted V Liquid-Cooled with 2-Stage or Turbocharger | 150mm x 160mm 33.9ℓ | Expected: 2650rpm x 1500HP (req.) 8000m | 2770rpm x 1600HP | 11/1941 | 3/1943 | |||||
| Ha-201 | I-B | 12-Cylinder Inverted V Liquid-Cooled (0.752) 2-Unit Special Coupling | 150mm x 160mm 67.8ℓ (6.7) | Expected: 2400rpm x 2200HP 4500m | 2500rpm x 2350HP | 5800mm x 712mm x 1027mm | 1400kg | 12/1938 | 6/1941 | Ki-64 Test Plane (Kawasaki) | ||
| Ha-321 | II | 12-Cylinder Inverted V Liquid-Cooled 2-Unit Special Coupling | 150mm x 160mm 67.8ℓ (7.2) | Expected: 2600rpm x 2800HP 6000m | 2740rpm x 3000HP | 11/1941 | ||||||
| Ha-303 | VI-A | Required: 2500HP~3000HP ≥8000m | 10/1939 | |||||||||
| Ha-200 | Hitachi | IV-A | 12-Cylinder Inline Opposed Air-Cooled (0.510) Sliding Valve | 130mm x 140mm 22.3ℓ (6.5) | Expected: 3000rpm x 850HP 5000m | 3000rpm x 920HP | 2720mm x 600mm x 1210mm | 820kg | 12/1938 | 8/1940 Completed | ||
| Ha-120 | IV-A | 12-Cylinder Inline Opposed Air-Cooled (0.510) Sliding Valve | 130mm x 140mm 22.3ℓ (6.5) | Expected: 3300rpm x 1000HP 5000m | 3300rpm x 1100HP | 2420mm x 450mm x 1210mm | Expected: 700kg | 12/1940 | 12/1942 | |||
| Ha-43 | II | 6-Cylinder Inverted Inline Air-Cooled Sliding Valve | 130mm x 140mm 11.1ℓ (6.5) | Expected: 2300rpm x 280HP 2000m | 2500rpm x 330HP | 1850mm x 450mm x 650mm | 330kg | 10/1939 | 4/1941 Completed | |||
| Ha-143 | III | 6-Cylinder Inverted Inline Air-Cooled Sliding Valve | 130mm x 140mm 11.1ℓ (6.5) | Expected: 2300rpm x 300HP 2000m | 2500rpm x 350HP | Expected: 270kg | 11/1941 | 3/1943 | ||||
| Ha-47 | I | 4-Cylinder Inverted Air-Cooled | 105mm x 125mm 4.33ℓ (5.8) | 2400rpm x 100HP | 2500rpm x 110HP | 1070mm x 430mm x 695mm | 115kg | 3/1942 | 2/1943 | Ki-86 (Kokusai) | GK4A | |
| Ha-46 | Aviation Arsenal | 12-Cylinder Inverted V Liquid-Cooled Two-Stroke | 140mm x 140mm 25.8ℓ (6.0) | Expected: 3000rpm x 1100HP 3000m | 3150rpm x 1200HP | 1668mm x 700mm x 702mm | Expected: 520kg | 4/1940 | 3/1943 | |||