List of Prototype Airplanes
Plane NameMain PurposeModel TypeCrewMain SpecificationsEnginePropOrdnancePerformanceCompletion ScheduleSummary
Full
Width
Full
Length
Full
Height
Empty
Weight
Gross
Weight
Model TypeHorsepowerMachine GunsBombsTorpedoesTop SpeedLanding
Speed
Cruising RangeClimb AbilityFY1941FY1942FY1943
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Mitsubishi 14-Shi Interceptor, M20That which passes exam by end 9/1940 (air-cooled)Constant SpeedFixed 7.7mm x2
Fixed 20mm x2
325kt/6000m
Target: 340kt
≤70ktSL: ≥0.7hr at max speed,
OL: ≥4.5hr at rated, 5040m
≤5’30” to 6000m
Nakajima 13-Shi Long-Range Fighter3930kgSL: 6200kg
OL: 6960kg
Sakae Mod.10 Kai 1
NK1E
1180hp x23-Blade Constant SpeedFixed 20mm x1
Fixed 7.7mm x2
Flex 7.7mm x5
282kt/5000m75ktOL: 11.55hr at 4000m5’20” to 4000mwing loading: 155kg/m2, power loading: 2.95kg/hp
Kūgishō 13-Shi Ship-Based Bomber2100kg3350kgD.B.600950hp x1Constant SpeedFixed 7.7mm x2
Flex 7.7mm x1
250kg x1287kt/4000m64ktBSL: 870NM
ROL: 1645NM
≤5’20” to 3000mwing loading 142kg/m2, power loading: 3.56kg/hp
Nakajima 14-Shi Ship-Based Attacker, N10That which passes exam by end 12/1939Constant SpeedFlex 7.7mm x2500kg x1
or 250kg x2
or 60kg x6
800kg x1245kt/4000m≤60ktTSL: 800NM
RSL: 1600NM
8’0″ to 4000m
Nakajima 13-Shi Large Attacker19350kgSL: 28150kg
OL: 34300kg
Kasei Mod.111530hp x43-Blade Constant SpeedFlex 20mm x2
Flex 7.7mm x4
1,000kg x4
or 800kg x4
or 500kg x6
or 250kg x12
or 60kg x36
800kg x3
or 1500kg x2
237kt/4000mASL: 1800NM
AOL: 2800NM
ROL: 3800NM
≤12’0″ to 5000mwing loading: 140kg/m2, power loading: 5.3kg/hp
Kawanishi 15-Shi Sea-Based Fighter, K20That which passes exam by end 1941.1Fixed 7.7mm x2
Fixed 20mm x2
290kt/6000m
Target: 310kt
about 60ktSL: (Rated) 1.0hr
OL: 4.5+1.5hr
about 6′ to 6000m
Aichi 14-Shi Twin-Seat Sea-Based Recce, A20Kinsei Mod.40
MK8A
Fixed 7.7mm x2
Flex 7.7mm x1
250kg x1
or 60kg x3
250kt/5000maround 55ktBSL: 500NM
BOL: 1000NM
ROL: 1400NM
≤8’30” to 5000m
Kawanishi 14-Shi High-Speed Sea-Based Recce, E15K12820kgSL: 3800kg
OL: 4600kg
Kasei Mod.10 Kai 3
MK4D
1500hp x1Metal Contra-Rotating Constant SpeedFlex 7.7mm x1280kt/6000m
Floats Dropped: 300kt
56.7ktOL: 2060NM2’54” to 2000m
Kawanishi 13-Shi Large Flying Boat, H8K113360kgSL: 23000kg
OL: 31000kg
Kasei Mod.111530hp x43-Blade Constant SpeedFlex 7.7mm x4
Flex 20mm x2
1,500kg x2
or 800kg x2
or 250kg x6
800kg x2
or 1500kg x2
224kt/4000m64.9ktASL: 1200NM
AOL: 2860NM
ROL: 3980NM
10’38.5″ to 4000m
Nippi 13-Shi Small Transporter, L7P13916.4kgSL: 5950kg
OL: 6250kg
Kotobuki Mod.41710hp x23-Blade Variable196kt/2,300m59.7ktOL: 1,234NM6’51” to 3,000m
Kūgishō 15-Shi Large High-Speed Plane (Land-Based), Y20
 
14-Shi Basic Trainer658.7kgHitachi inverted air-cooled110hp/0mWooden101.5kt47.5kt3.7hr, 331NM at 90kt12’56” to 2,000mwing loading: 46.8kg/m2
14-Shi Intermediate TrainerKotobuki Mod.2 Kai 2
(or Tenpū Kai)
500hp/2500m (450hp/2500m)Wooden 2-Blade≥140kt/1500m≤55kt≥4.5hr at 1000m, 110kt≤10′ to 3,000m
15-Shi Plane-Operations TrainerKotobuki Mod.2 Kai 2
(or Tenpū Kai)
500hp/2500m (450hp/2500m)WoodenFlex 7.7mm x130kg x2
4kg x2
≥130kt/1500m≤60kt≥5hr at 1000m, 100kt≤9′ to 1,500m
15-Shi Training Fighter (Twin-Seat)Kotobuki Mod.41680hp/3000mMetal Fixed PitchFixed 7.7mm x1
(20mm armament is left)
about 200kt/3,000mabout 55kt≥3hr at 1000m, 125kt≤4′ to 3,000m
15-Shi Training Fighter (Single-Seat)
Type 99 Training Bomber Kai
Type 97 Training Attacker Kai5250kgSL: 7000kg
OL: 7500kg
near end of service testing, scheduled to be adopted
13-Shi Training Flying Boat
(13-Shi Small Flying Boat)
Kotobuki Mod.41 x2Max 780hp x2Metal 3-Blade Variable Pitch174kt/3,050m676NM at 130kt13’03” to 3,000m
 
Type 0 Mk.2 Ship-Based Fighter1,780kgSL: 2,340kg
(same as Type 0 Mk.1)
Sakae Mod.10 Kai 21070hp/3000m
1000hp/6000m
3-Blade Constant SpeedFixed 7.7mm x2
Fixed 20mm x2
30kg x2290kt/6000mSL: 0.8hr at full power
OL: 1.6hr at full power
6’40” to 6000mplanned performance enhancement by replacing engine of Type 0 Mk.1 Ship-Based Fighter
Mk.1 Sea-Based FighterSL: 2,490kgSakae Mod.12950hp/4200m3-Blade Constant SpeedFixed 7.7mm x2
Fixed 20mm x2
30kg x2230kt/5000mSL: 0.7hr at full power6’43” to 5000mmodification of Type 0 Mk.1 Ship-Based Fighter to float-type
Mk.2 Sea-Based FighterSL: 2,490kgSakae Mod.10 Kai 21070hp/3000m
1000hp/6000m
3-Blade Constant SpeedFixed 7.7mm x2
Fixed 20mm x2
30kg x2250kt/6000mmodification to Type 0 Mk.2 Ship-Based Fighter as soon as modification countermeasures are complete
Type 0 Observation Plane KaiZuisei Mod.13780hp/0m2-Blade Constant SpeedFixed 7.7mm x2
Flex 7.7mm x1
250kg x1
or 60kg x2
to allow dive bombing with a No.25 with a single float (expected 70kg weight increase, 5kt speed decrease)
Type 96 Land-Based Attacker Kai
(Kinsei Mod.40 Kai 1)
SL: 8000kg
OL: 9250kg
Kinsei Mod.40 Kai 11180hp/2000m
1100hp/5000m
3-Blade Constant SpeedFlexible 7.7mm x4
or + (Flex 20mm x1)
250kg x2
or 500kg x1
or 800kg x1
800kg x1214.8kt/3000m
232kt/5900m
ROL: 16hr, 2250NM at 140kt10’30” to 5000m
13’0″ to 6000m
planned performance improvement by replacing the engine of Type 96 Land-Based Attacker.
w/ Kinsei Mod.45:
198kt/3,000m, 200kt/6,000m, 16’0″/6,000m
13-Shi Long-Range Fighter Mod.2Sakae Mod.10 Kai 2,31130hp/1600m
1050hp/4650m
3-Blade Constant Speed250kg x1
or 500kg x1
or 800kg x1
800kg x1modification to 13-Shi Long-Range Fighter to allow dive bombing with a No.25 or No.50
Type 99 Mk.2 Ship-Based BomberKinsei Mod.40 Kai 11180hp/2,000m
1100hp/5,000m
3-Blade Constant SpeedFixed 7.7mm x2
Flex 7.7mm x1
250kg x1
or 60kg x2
planned performance enhancement by replacing engine of Type 99 Ship-Based Bomber
Type 97 Mk.2 Flying Boat
(Kinsei Mod.40 Kai)
SL: 17000kg
OL: 23000kg
Kinsei Mod.40 Kai1210hp/2750m
1080hp/5900m
3-Blade Constant SpeedFlex 7.7mm x(4+3)
Flex 20mm x1
800kg x2
or 500kg x2
or 60kg x12
800kg x2204.5kt/5900m3060NM at 130kt8.5′ to 4000m
Type 1 Land-Based Transportermodification of Type 1 Land-Based Attacker for cargo and troop transport
Radio-Controlled Target(400kg)AVA-4M30hp(2-Blade)≥55kt (?), 180kt/3,000m≤50kt≥30min at max speedprototype testing underway according to 1940 Secretariat Confidential Directive No. 3583
(full width: 10m, full length: 7m)
wing loading: 30.8kg/m2, power loading: 11.41kg/hp
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Provisional Type 0 Mk.2 Ship-Based FighterShip-Based CombatLow-Wing Single-Engine Retractable Gear112.000m9.121m3.509m1,840kg2,460kgSakae Mod.211100hp/2850m
980hp/6000m
Hamilton 3-Blade Constant SpeedType E x2
7.7mm x2
30kg x2285.9kt/6,000m~59ktSL: ~4.5hr, 810NM at 4,000m (180kt)6’12” to 6,000m1
 
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14-Shi InterceptorInterceptionLow-Wing Single-Engine Retractable Gear110.800m9.900m3.820m2,103.3kg2,791.2kgKasei Mod.10 Kai 21450hp/3000m
1300hp/6000m
Hamilton 3-Blade Constant SpeedType E x2
Fixed 7.7mm x2
325kt/6,000m65kt2.6hr, 598NM at 6,000m (230kt, 40% power)6’0″ to 6,000m1
 
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14-Shi Interceptor KaiInterceptionLow-Wing Single-Engine Retractable Gear110.800m9.900m3.820m~2,200kg3,030kgKasei Mod.1031750hp/2100m
1580hp/5700m
Hamilton 3-Blade Constant SpeedType E x2
7.7mm x2
349kt/5,700m70.4kt3.3hr, 825NM at 6,000m (250kt, 40% power)4’59” to 6,000m122]
Provisional Mk.1 InterceptorInterceptionLow-Wing Single-Engine Retractable Gear112.000m8.000m3.950m2,550kg3,500kg15-Shi Ru-Gō
(performance enhanced model)
1700hp/6000mConstant SpeedType E x4
7.7mm x2
354kt/6,000m~66kt2.0hr, 500NM at 6,000m (250kt)~5.5′ to 6,000m11222]
13-Shi Twin-Engine FighterEscort FightingLow-Wing Twin-Engine Retractable Gear317.000m12.300m3.970m3930kg6200kgSakae Mod.201100hp x2/2850m
980hp x2/6000m
Hamilton 3-Blade Constant SpeedType E x1
Flex Type Bi x4
Fixed Type Bi x2
Flex Type Ru x1
282kt/5,000m75ktOL: 2020NM at 4000m, (175kt)5’20” to 4000m1
 
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Provisional Type 99 Ship-Based Bomber Mod.12
(Kinsei Mod.51)
Dive BombingLow-Wing Monoplane214.360mKinsei Mod.51
MK8A
1200hp/3000m
1100hp/6000m
Fixed 7.7mm x2
Flex 7.7mm x1
250kg x1
or 60kg x2
or 30kg x2
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13-Shi Ship-Based BomberDive BombingMid-Wing Monoplane Retractable Gear211.500m10.220m3-point:
3.295m
2440kg3650kgAE1A965hp/4450m3-Blade Constant SpeedFixed 7.7mm x2
Flex 7.7mm x1
250kg x1
or 500kg x1
288kt/4540m≤65ktBSL: 820NM, BOL: 1270NM at 3000m (230kt)5’45” to 3000m1]
 
 
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14-Shi Ship-Based AttackerShip-Based AttacksLow-Wing Monoplane Retractable Gear314.900m10.500m3-point:
3.770m
3070kgSL: 5150kgMamori Mod.111750hp/1400m
1600hp/4900m
4-Blade Constant SpeedFixed 7.7mm x1
Flex 7.7mm x2
800kg x1
or 500kg x1
or 250kg x2
or 60kg x6
800kg x1≥245kt/4000m≤65ktASL: 800NM, PSL: 1600NM at 4000m (180kt)≤8’0″ to 4000m1
 
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16-Shi Ship-Based AttackerShip-Based Attacks,
Ship-Based Bombing
Mid-Wing Monoplane Retractable Gear214.400m11.450m3-point:
4.100m
3092kgSL: 4890kg
OL: 5355kg
15-Shi Ru-Gō Kai 11650hp/2000m
1500hp/5000m
4-Blade Constant SpeedFixed 7.7mm x2
Flex 7.7mm x1
800kg x1
or 500kg x1
or 250kg x2
or 60kg x6
800kg x1304kt/6000m65ktBSL: 1000NM, BOL: 1800NM at 4000m (200kt)7’30” to 4000m11222]
Provisional Type 96 Land-Based Attacker Mod.23
(Kinsei Mod.51)
Destroying Ships, Search, Recon, AttacksMid-Wing Monoplane Twin-Engine Retractable Gear725.000m16.450m3-point:
3.690m
Kinsei Mod.511200 hp x2/3000m
1100hp x2/6000m
Flex 20mm x1
Flex 7.7mm x4
(Reserve Flex 7.7mm x2)
800kg x1
or 500kg x1
or 250kg x2
or 60kg x12
800kg x12]
 
 
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Provisional Type 1 Land-Based Attacker Mod.12Destroying Ships, Search, Recon, AttacksMid-Wing Monoplane Twin-Engine Retractable Gear725.000m20.000m3-point:
4.800m
Provisional Kasei Mod.151420hp x2/2600m
1300hp x2/6000m
Flex 20mm x2
Flex 7.7mm x3
(Reserve Flex 7.7mm x2)
800kg x1
or 500kg x1
or 250kg x4
or 60kg x12
800kg x111]
16-Shi Medium AttackerDestroying Ships, Search, Recon, AttacksMid-Wing Monoplane Twin-Engine Retractable Gear425.000m20.000mlevel:
6.100m
10600kgSL: 16000kg
OL: 18000kg
14-Shi Ri-Gō Kai 1012350hp x2/1500m
2,000hp x2/8000m
4-Blade Constant SpeedFlex 20mm x2
Flex 7.7mm x2
800kg x1
or 500kg x2
or 250kg x6
or 60kg x12
800kg x1
or 1000kg x1
280kt/5000mAOL: 3000NM, POL: 3500NM at 4000m (200kt)≤12’0″ to 4000m1
13-Shi Large AttackerDestroying Ships, Search, Recon, AttacksMid-Wing Monoplane 4-Engine Retractable Gear1042.135m31.015mlevel: 6.130m20100kgSL: 28150kg
AL: 34300kg
Kasei Mod.111480hp x4/2200m
1380hp x4/1400m
3-Blade Constant SpeedFlex 20mm x2
Flex 7.7mm x4
1500kg x2
or 800kg x4
or 250kg x12
or 60kg x24
800kg x3
or 1000kg x3
225kt/4000m≤65ktAOL: 2800NM, POL: 3800NM at 4000m (175kt)≤14’0″ to 4000m1111]
42.170m31.050m~6.000mAL: 36000kgMamori Mod.111750hp x4/1400m
1600hp x4/4950m
256.5kt/5000mAOL: 3060NM, POL: 4190NM at 4000m (175kt)≤13’0″ to 5000m
15-Shi Twin-Engine Land-Based BomberDive Bombing, Land-Based BombingMid-Wing Monoplane Twin-Engine Retractable Gear320.000m15.000mlevel: 5.300m6600kgSL: 9900kg
OL: 12000kg
15-Shi Ru-Gō Kai 11650hp x2/2000m
1500hp x2/5000m
3-Blade Constant SpeedFlex 7.7mm x2800kg x1
or 500kg x2
or 250kg x2
800kg x1300kt/5800m76ktBOL: 2400NM at 4000m (200kt)10’30” to 5000m1
 
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Provisional Mk.1 Sea-Based FighterSea-Based CombatLow-Wing Monoplane Single-Engine Single-Float112.000m10.130m4.305m1879kg2460kgSakae Mod.12950hp/4200mHamilton 3-Blade Constant Speed7.7mm x2
Type E x2
600kg x2234.5kt/5,000m59.8kt1188NM at 4000m (180kt)6’49.7″ to 5000m1
 
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15-Shi Sea-Based FighterShort-Range Sea-Based CombatMonoplane Single-Float112.000m10.585m4.650m2590kg3400kgKasei Kai Mod.104
MK4S
1720hp/2100m
1550hp/5700m
2-Blade Double Contra-RotatingFixed 20mm x2
Fixed 7.7mm x2
310kt/5,700m73.7kt6’13” to 6000m1
 
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14-Shi Twin-Seat Sea-Based RecceDive BombingLow-Wing Monoplane Twin-Float212.800m10.840m4.710m2477kg3600kg
3965kg
Kinsei Mod.51
MK8A
1200hp/3000m
1100hp/6000m
3-Blade Constant SpeedFixed 7.7mm x2
Flex 7.7mm x1
250kg x1
or 60kg x3
255kt/6,200m56.5ktBOL: 1034NM, POL: 1468NM at 5000m (190kt)8’9″ to 5000m1
 
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14-Shi High-Speed Sea-Based RecceHigh-Speed ReconLow-Wing Monoplane Single-Float214.000m11.465m4.950m2820kgSL: 3800kg
OL: 4100kg
4600kg
Kasei Mod.14
MK4D
1400hp/2700m
1260hp/6100m
2-Blade Double Contra-RotatingFlex 7.7mm x1277.2kt/6,000m
312.5kt/6,000m (ammo & float dropped)
60.2ktSea-Takeoff OL: 1337NM,
Catapult OL: 2140NM at 2500m (180kt)
10’56” to 6000m1
 
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Provisional Type 97 Flying Boat Mod.23
(Kinsei Mod.51)
Attacks, Recon, SearchHigh-Wing Monoplane 4-Engine Boat940.000m~25.625m~6.270m~12220kgSL: 17000kg
OL: 23000kg
Kinsei Mod.51
MK8A
1200hp x4/3000m
1100hp x4/6000m
3-Blade Constant SpeedFlex 20mm x2
Flex 7.7mm x4
(Reserve x3)
800kg x2
or 500kg x2
or 250kg x4
or 60kg x12
800kg x2
or 1000kg x2
204.5kt/5,900mPOL: 3060NM at 1000m (130kt)8’30” to 4000m1]
 
 
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Provisional Type 2 Flying Boat Mod.12Attacks, Recon, SearchHigh-Wing Monoplane 4-Engine Boat10~38.000m~28.130m~9.150mOL: 32,500kgKasei Kai Mod.1021720hp x4/2000m
1550hp x4/5700m
4-Blade Constant SpeedFlex 20mm x2
Flex 7.7mm x4
(Reserve x6)
800kg x2
or 250kg x8
or 60kg x16
800kg x2
or 1000kg x2
245kt/5,700mAOL: 3240NM, POL: 4440NM at 4180m (160kt)7’58” to 4000m 
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scheduled production from 10/1942 (no.18 onward)
Provisional Type 2 Flying Boat Mod.22Attacks, Recon, SearchHigh-Wing Monoplane 4-Engine Boat10~38.000m~28.130m~9.150mOL: 32500kgKasei Kai Mod.1021720hp x4/2000m
1550hp x4/5700m
4-Blade Constant SpeedFlex 20mm x2
Flex 7.7mm x4
(Reserve x6)
800kg x2
or 250kg x8
or 60kg x16
800kg x2
or 1,000kg x2
254kt/5700mAOL: 3500NM, POL: 4440NM at 4000m (160kt)7’30” to 4000m1
 
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scheduled production from 9/1943 (no.138 onward)
14-Shi Land-Based Plane-Operations TrainerBasic TrainingBiplane Fixed Gear27.347m6.620m2.656m401.3kg630.8kgHatsukaze Mod.11100hpWooden 2-Blade99kt/sea level46.5kt334NM/4.45hr5’06” to 1000m2
 
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14-Shi Land-Based Intermediate TrainerIntermediate TrainingLow-Wing Single-Engine Fixed Gear212.350m8.822m3.705m1443kg2100kgKotobuki Mod.2 Kai 2630hpWooden 2-Blade152kt/2000m57.5kt725NM/6.59hr at 1000m (110kt)8’5″ to 3000m1
 
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15-Shi Land-Based Basic TrainerPlane-Operations TrainingMid-Wing Single-Engine Fixed Gear515.000m9.980m3.100m1750kg2800kgTenpū Mod.21540hp/1,500mHamilton 2-Blade Variable Pitch (2-Stage)Flex Type 92 x130kg x2
4kg x2
136kt/1200m55kt725NM/6.59hr at 1000m (110kt)5.2′ to 1500m111]
15-Shi Training FighterCombat TrainingLow-Wing Single-Engine Fixed Gear211.000m7.765m3.350m1321.6kg1697kgKotobuki Mod.41785hp/3000m3-Blade Metal Fixed PitchFixed Type 97 x1
(50 rounds)
204kt/3000m57kt382.5NM/3.06hr at 1000m (125kt)3’44” to 3000m1
 
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Mk.D2 KaiTransportLow-Wing Monoplane Twin-Engine5+2128.954m~19.675m3-point: ~5.487m7305kg11500kgKinsei Mod.51
MK8A
1200hp x2/3000m
1100hp x2/6000m
3-Blade Constant Speed210kt/3000m1395~2060NM at 3000m (140kt)~8′ to 3000m11]