This page is a list of all the known rocket & jet engines for aircraft that were developed by Japan during World War II, including production, prototypes, and paper.
*Tables scroll on mobile!
Rocket:
Engine Name | Format | Mean Thrust | Weight | Fuel | Len. x Dia. | Fuel Cons. | Designer | Mfr. | Service | Notes |
---|---|---|---|---|---|---|---|---|---|---|
4FR110, Type 4 Mk.1 Rocket Mod.10 | Solid Rocket | 700kgf ~3.0s | 11.2kg (powder) | 343 Special FDT2 | 3.73kg/s | Navy | carrier RATO for Tenzan etc | |||
4FH110, Type 4 Mk.1 Rocket Mod.10 | Solid Rocket | 400kgf ~10.0s | 22.2kg (powder) 70kg | 500 Special FDT6 | 1290x257mm | 2.22kg/s | Navy | aerial wing booster, Ōka Mod.11 | ||
4FR120, Type 4 Mk.1 Rocket Mod.20 | Solid Rocket | 800kgf ~10.0s | 43.9kg (powder) 120kg | 500 Special FDT6 | 4.39kg/s | Navy | RATO for large planes | |||
4FH120, Type 4 Mk.1 Rocket Mod.20 | Solid Rocket | 800kgf ~10.0s | 43.9kg (powder) 120kg | 500 Special FDT6 | 2090x257mm | 4.39kg/s | Navy | Ōka Mod.11 engines | ||
4FH121, Type 4 Mk.1 Rocket Mod.21 | Solid Rocket | 800kgf ~10.0s | 43.9kg (powder) 120kg | 500 Special FDT6 | 1790x252mm | 4.39kg/s | Navy | aerial fuselage booster, Suisei Mod.43 | ||
4FH130, Type 4 Mk.1 Rocket Mod.30 | Solid Rocket | 400kgf ~10.0s | 22.2kg (powder) | 500 Special FDT6 | 2.22kg/s | Navy | Ōka trainer engine | |||
4FR140, Type 4 Mk.1 Rocket Mod.40 | Solid Rocket | 2,100kgf ~3.5s | 44kg (powder) | 343 Special FDT2 | 12.57kg/s | Navy | Ōka Mod.43 catapult cart rockets | |||
Toku-Ro Mk.1 Mod.1* | Liquid Rocket | 130kgf (150kgf) | H₂O₂ | 820x[?]mm | Mitsubishi | Mitsubishi | Army | Ki-148 engine, Ki-48, Ki-102 aux? | ||
Toku-Ro Mk.1 Mod.2* | Liquid Rocket | 240kgf (300kgf) | H₂O₂ | Mitsubishi | Mitsubishi | Army | Ki-147 engine, (Ki-67 aux?) | |||
Toku-Ro Mk.1 Mod.3* | Liquid Rocket | 500kgf | H₂O₂ | Mitsubishi | Mitsubishi | Army | Maybe 2 Mod.2s taped together, Ki-109 aux | |||
KR10, Toku-Ro Mk.2 | Liquid Rocket | 1,500kgf | 170kg | Ro-Gō Otsu Fuel | 2523x904mm | 8.75kg/s | Mitsubishi | Mitsubishi, Kūgishō, Army Air Arsenal | Navy/Army, Army control | Shūsui engine |
KR20 | Liquid Rocket | 1,500kgf | 170kg | Ro-Gō Otsu Fuel | 2523x904mm | 8.75kg/s | Mitsubishi | Mitsubishi | Navy | Shūsui engine, thicker turbopump shaft |
KR22 | Liquid Rocket | 1,500kgf | 170kg | Ro-Gō Otsu Fuel | 2523x904mm | 8.75kg/s | Hiro Arsenal | Hiro Arsenal | Navy | Shūsui engine, triple turbopump shaft support |
Toku-Ro Mk.3 | Liquid Rocket | 1,500kgf +80-400kgf | Ro-Gō Otsu Fuel | Army Air Arsenal | Army | Toku-Ro Mk.2 + cruise rocket | ||||
Toku-Ro Mk.4 | Liquid Rocket | Army Air Arsenal | Army | unknown |
Turbojet (‘Turbine Rocket’):
Engine Name | Format | Output | RPM | Weight | Len. x Dia. | SFC | Designer | Mfr. | Service | Notes |
---|---|---|---|---|---|---|---|---|---|---|
TR | 1C-AN-1AT | 300kgf | 16,000 | Kūgishō | Ebara | Navy | 1st IJN jet | |||
Ne-3 | 3A-AN-1AT | 350kgf | 8,300 | 309kg | 2321x760mm | 2.9kg/kgf/hr | Giken | Kawasaki | Army | 1st IJA turbojet |
Ne-4 | 1C-AN-1AT | 280kgf | 11,000 | 270kg | 1700x750mm | 2.5kg/kgf/hr | Giken | Kawasaki | Army | |
TR10/Ne-10 | 1C-AN-1AT | 300kgf | 16,000 | 1600x850mm | Kūgishō | Kūgishō, Mitsubishi, Hitachi Mfg, Ishikawajima Air, IST, Nakajima | Navy | improved TR for trial and error production | ||
TR10 Kai/Ne-10 Kai | 4A+1C-AN-1AT | 300kgf | 15,000 | Kūgishō | Kūgishō | Navy | Ne-10 + 4 axial stages | |||
TR12/Ne-12 | 4A+1C-AN-1AT | 315kgf | 15,000 | 388kg | 2102x854mm | Kūgishō | Kūgishō | Navy | original Kikka engine | |
TR12 Kai/Ne-12B | 4A+1C-AN-1AT | 320kgf | 15,000 | 315kg | 1800x855mm | 1.65kg/kgf/hr | Kūgishō | Kūgishō, Yokosuka Yard | Navy | lightened Ne-12 |
TR15/Ne-15 | 8A-AN-1AT | 320kgf | Kūgishō | Navy | Ne-20 predecessor plan | |||||
TR20/Ne-20 | 8A-AN-1AT | 490kgf | 11,000 | 470kg | 2704x620mm | 1.36kg/kgf/hr | Kūgishō | Kūgishō, Yokosuka Yard, IST | Navy | Kikka/Oka 33&43 engine |
Ne-20 Kai | 6A-AN-1AT | 650kgf | 11,000 | Kūgishō | Navy | Kikka fighter engine | ||||
TR30/Ne-30 | 4A+1C-AN-1AT | 850kgf | 15,000 | 900kg | 2470x1030mm | 1.29kg/kgf/hr | Kūgishō | Kūgishō | Navy | upscaled Ne-10 Kai |
Ne-130 (Ne-201II) | 7A-AN-1AT | 908kgf | 9,000 | 900kg | 3850x850mm | 1.28kg/kgf/hr | Kōken, Giken | IST | Army | Ki-201 engine |
TR140/Ne-140 | 9A-AN-1AT? | ~4,000hp equiv. | Kūgishō | Kūgishō, IST | Navy | converted GTPR | ||||
TR230/Ne-230 | 7A-AN-1AT | 885kgf | 8,100 | 870kg | 3430x762mm | 1.32kg/kgf/hr | Nakajima | Nakajima, Hitachi Mfg. | Army/Navy | Ki-201 engine |
TR330/Ne-330 | 7A-7C-1AT | 1,320kgf | 7,600 | 1,200kg | 4000x880mm | 1.40kg/kgf/hr | Mitsubishi | Mitsubishi, Niigata | Army/Navy | R2Y2 engine |
Engine Jet (‘Motor Turbine Propeller Rocket’):
Engine Name | Format | Output | RPM | Weight | Len. x Dia. | SFC | Designer | Mfr. | Service | Notes |
---|---|---|---|---|---|---|---|---|---|---|
TR Hardware, MTPR | Prop-‘Atsuta’-(?)C-AN-(?)T | 3,000hp +1,000kgf | Hitachi Mfg. | Hitachi Mfg. | Navy | Navy DB601-based jet. compound engine, linking of turbojet and piston engine driving prop |
Motorjet (‘Engine Rocket’):
Engine Name | Format | Output | RPM | Weight | Len. x Dia. | SFC | Designer | Mfr. | Service | Notes |
---|---|---|---|---|---|---|---|---|---|---|
Sakae IPR | ‘Sakae’-5A-AN | 604kgf | 4169x912mm | Kūgishō | Kūgishō | Navy | ||||
Homare IPR | ‘Homare’-3A-AN | 1,396kgf | Kūgishō | Navy | ||||||
Ne-1 | Engine-2A-AN | 190kgf | 1050x750mm | 3.9kg/kgf/hr | Giken | Kawasaki | Army | auxiliary engine for Ki-48II | ||
Ne-2 | Engine-1C-AN | 150kgf | Giken | Kawasaki | Army | auxiliary engine for Ki-48II | ||||
Ne-101 | ‘Ha-40’-1A-AN | 1,000kgf | Giken, Kōken | Army | Army DB601-based jet | |||||
Hatsukaze Rocket, Tsu-11 | ‘Hatsukaze’-1A-AN | 220kgf | 9,000 | 200kg | 2200x640mm | 4.33kg/kgf/hr | Kūgishō | Hitachi Air. | Navy | original Kikka substitute engine |
Turboprop (‘Gas Turbine Propeller Rocket’):
Engine Name | Format | Output | RPM | Weight | Len. x Dia. | SFC | Designer | Mfr. | Service | Notes |
---|---|---|---|---|---|---|---|---|---|---|
GT Hardware, GTPR | Prop-16A-AN-5AT | 3,000hp +2,000hp (equiv. thrust) | 5,300 | Kūgishō | Kūgishō, IST | Navy | for large flying boat | |||
GTPR II | Prop-12A-AN-5AT | 3,000hp +2,000hp (equiv. thrust) | 5,000 | 2,500kg | 5500x850mm | Kūgishō | Kūgishō, IST | Navy | iterative design of GTPR | |
Ha-Ta 1, Ken-8, Ne-201 | Prop-19A-4C-5AT | 1,870hp +582kgf | 4,200 | 2,500kg | 5750x1100mm | 0.68kg/shp/hr | Kо̄ken | IST | Army | only completed JP turboprop |
Ramjet (‘Dynamic Pressure Rocket’):
Engine Name | Format | Output | RPM | Weight | Len. x Dia. | SFC | Designer | Mfr. | Service | Notes |
---|---|---|---|---|---|---|---|---|---|---|
Ne-0 | AN | 60kgf | 0 | 2100x600mm | 9.8kg/kgf/hr | Kōken | Kawasaki | Army | 1st IJA jet | |
Unknown | AN | n/a | 0 | ~4000x1000mm | Kūgishō? | Kūgishō? | Navy? | unknown 1943 ramjet. maybe Mitsubishi-made | ||
Kayaba Mod.1 | AN | 750kgf | 0 | Kayaba | Kayaba | Army | ramjet for tailless plane, commissioned by IJA, not built |
Pulsejet (‘Intermittent Combustion Rocket’):
Engine Name | Format | Output | RPM | Weight | Len. x Dia. | SFC | Designer | Mfr. | Service | Notes |
---|---|---|---|---|---|---|---|---|---|---|
Ka-10 | Valve-AN | 300kgf | 0 | 150kg | 3700x580mm | 3.84kg/kgf/hr | Kūgishō | Kūgishō, Sagami Arsenal | Navy | based on V1 Argus engine |
Ka-10 (Small) | Valve-AN | 0 | Kūgishō | Kūgishō | Navy | prototype of Ka-10 |
Navy Solid Rocket Naming System
- 1st Number: Type designation
- Lettering:
- F = ‘Funshin-ki’ 噴進器 (Rocket) [?? otherwise English ‘for’]
- R = ‘Ririku’ 離陸 (Takeoff) [takeoff booster use]
- H = ‘Hikouki’ 飛行機 (Airplane) [mid-air booster use]
- F = ‘Funshin-ki’ 噴進器 (Rocket) [?? otherwise English ‘for’]
- 2nd Number: Mark designation
- Remaining Numbers: Model designation
Examples:
4FR110 = Type 4 Mark 1 Rocket Model 10 (for Takeoff)
4FH120 = Type 4 Mark 1 Rocket Model 20 (for Airplane)
Army Early Jet Engine Naming System (Before Autumn 1944)
- Prefix:
- ‘Ne’ = ‘Nenshō Funsha Suishin-ki’ 燃焼噴射推進器 (Combustion Jet – Jet Engine)
- First Number:
- no = low power class engine
- 10 = medium power class engine
- 20 = high power class engine
- Last Number:
- Number in the series, starting from 1
Examples:
Ne-2 = low power class engine 2
Ne-201 = high power class engine 1
(note – this explanation is the author’s theory.)
Navy Early Jet Engine Naming System (Before Autumn 1944)
- Prefix:
- ‘TR’ = Tābin Roketto タービンロケット (Turbine Rocket – Turbojet)
- First Number:
- none = made by Kūgishō
- 1 = made by Ishikawajima Shibaura Turbine
- 2 = made by Hitachi/Nakajima
- 3 = made by Mitsubishi
- Mid Number:
- 1 = 1,000hp class equivalent
- 2 = 2,000hp class equivalent
- 3 = 3,000hp class equivalent
- 4 = 4,000hp class equivalent
- Last Number:
- Engine variant in that series, starting from 0
Examples:
TR10 = Kūgishō 1,000hp-class jet, variant 1.
TR12 = Kūgishō 1,000hp-class jet, variant 3.
TR140 = Ishikawajima 4,000hp-class jet, variant 1.
Army/Navy Unified Jet Engine Naming System (After Autumn 1944)
- Prefix:
- ‘Ne’ ネ = ‘Nenshō Funshin-ki’ 燃焼噴進器 (Combustion Jet – Jet Engine)
- ‘Ka’ カ = ‘Kanketsu Nenshō Roketto’ 間歇燃焼ロケット (Intermittent Combustion Rocket – Pulsejet)
- ‘Tsu’ ツ = Unknown (Motorjet)
- First Number:
- none = made by Kūgishō
- 1 = made by Ishikawajima Shibaura Turbine
- 2 = made by Hitachi/Nakajima
- 3 = made by Mitsubishi
- Mid Number:
- 1 = 1,000hp class equivalent
- 2 = 2,000hp class equivalent
- 3 = 3,000hp class equivalent
- 4 = 4,000hp class equivalent
- Last Number:
- Engine variant in that series, starting from 0
Examples:
Ne-20 = Kūgishō 2,000hp-class jet, variant 1.
Ne-330 = Mitsubishi 3,000hp-class jet, variant 1.