Yokosuka D3Y

Specifications

1st Flight 1945

Crew: 1

Length: 11.515 m (37 ft 9 in)

Wingspan: 14 m (45 ft 11 in)

Height: 4.2 m (13 ft 9 in)

Wing area: 30.5 m2 (328 sq ft)

Empty weight: 3,050 kg (6,724 lb)

Gross weight: 4,630 kg (10,207 lb)

Powerplant: 1 × Mitsubishi Kinsei 62 14-cylinder two-row air-cooled radial piston engine, 1,160 kW (1,560 hp) for take-off

1,000 kW (1,340 hp) at 2,100 m (6,900 ft)

890 kW (1,190 hp) at 5,800 m (19,000 ft)

Propellers: 3-bladed constant-speed metal propeller

Performance

Maximum speed: 470 km/h (290 mph, 250 kn) at 5,000 m (16,000 ft)

Cruise speed: 296 km/h (184 mph, 160 kn) at 3,000 m (9,800 ft)

Range: 1,472 km (915 mi, 795 nmi)

Time to altitude: 6,000 m (20,000 ft) in 11 minutes 45 seconds

Power/mass: 4.0 kg/kW (6.5 lb/hp)

Armament

Guns: 2x 20 mm (0.787 in) Type 99 Mark 1 machine gun in the engine cowling.

Bombs: 1x 800 kg (1,800 lb) bomb.

Variants

D3Y1-K Myojo (Navy Type 99 Bomber Trainer Myojo Model 22) – A two seat wooden dive-bomber trainer.

Powered by a 1,300 hp (970 kW) Mitsubishi Kinsei 54 radial engine, based on the Aichi D3A2-K, with significant changes to allow production in wood.

Two prototypes and three production aircraft built.

D3Y2-K Myojo – Single-seat special attack version (Kamikaze) of the D3Y1.

The undercarriage would be jettisoned on takeoff since the aircraft was not expected to return.

The prototype had begun construction, but was still incomplete, when the war ended.

D5Y1 Myojo Kai (Navy Special Attacker Myojo Kai) – Production designation given to the D3Y2-K.

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