Yokosuka B4Y - Specifications

Specifications

Data from Japanese Aircraft of the Pacific War

General characteristics

• Crew: 3 (pilot, navigator, radio operator/gunner)
• Length: 10.15 m (33 ft 3⅝ in)
• Wingspan: 15.00 m (49 ft 2½ in)
• Height: 4.36 m (14 ft 3⅝ in)
• Wing area: 50.0 m² (538 ft²)
• Empty weight: 2,000 kg (4,409 lb)
• Loaded weight: 3,600 kg (7,900 lb)
• Powerplant: 1 × Nakajima Hikari-2 9-cylinder radial engine, 626 kW (840 hp) (take off), 522 kW (700 hp) at 1,200 m (3,940 ft)

Performance

• Maximum speed: 278 km/h (150 knots, 171 mph)
• Range: 1,575 km (850 nmi, 978 mi)
• Service ceiling: 6,000 m (19,700 ft)
• Wing loading: 72 kg/m² (14.7 lb/ft²)

Armament

• Guns: 1× flexibly mounted, rearward-firing 7.7 mm (0.303 in) Type 92 machine gun
• Bombs: 1× 800 kg (1,764 lb) torpedo, or 500 kg (1,102 lb) of bombs