Yokosuka K5Y

Specifications

1st Flight 1933

Crew: 2

Length: 8.78 m (28 ft 10 in)

K5Y1: 8.05 m (26 ft)

Wingspan: 11 m (36 ft 1 in)

Height: 3.68 m (12 ft 1 in)

K5Y1: 3.2 m (10 ft)

Wing area: 27.7 m2 (298 sq ft)

Empty weight: 1,130 kg (2,491 lb)

K5Y1: 1,000 kg (2,205 lb)

Gross weight: 1,650 kg (3,638 lb)

K5Y1: 1,500 kg (3,307 lb)

Powerplant: 1 × Hitachi Amakaze 11 9-cylinder air-cooled radial piston engine, 250 kW (340 hp) for take-off

300 hp (224 kW) normal at sea level

Propellers: 2-bladed wooden fixed-pitch propeller

Performance

Maximum speed: 200 km/h (120 mph, 110 kn) at sea level

K5Y1: 213 km/h (132 mph; 115 kn)

Cruise speed: 139 km/h (86 mph, 75 kn) at 1,000 m (3,281 ft)

Range: 702 km (436 mi, 379 nmi)

K5Y1: 1,018 km (633 mi; 550 nmi)

Service ceiling: 4,330 m (14,210 ft)

K5Y1: 5,700 m (18,701 ft) in

Time to altitude: 3,000 m (9,843 ft) in 19 minutes 35 seconds

K5Y1: 3,000 m (9,843 ft) in 13 minutes 32 seconds

Wing loading: 59.6 kg/m2 (12.2 lb/sq ft)

Power/mass: 0.1537 kW/kg (0.0935 hp/lb)

Armament

Guns: 1× fixed, forward-firing 7.7 mm (.303 in) Type 97 aircraft machine gun and 1× flexible, rearward-firing 7.7 mm (.303 in) Type 92 machine gun

Bombs: Up to 100 kg (220 lb) of bombs on external racks

Variants

K5Y1 – Two-seat intermediate trainer for the Imperial Japanese Navy.

K5Y2 – Floatplane version, with Amakaze 11 engine.

K5Y3 – Floatplane, with 384 kW (515 hp) Amakaze 21.

K5Y4 – Projected land-based version with 358 kW (480 hp) Amakaze 21A. Never built.

K5Y5 – Projected land-based version with 384 kW (515 hp) Amakaze 15. Never built.

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