Specifications (H9A1)
Data from Japanese Aircraft of the Pacific War;[1] Warplanes of the Second World War, Volume Five: Flying Boats[4]
General characteristics
Crew: Normal crew of 5 (and up to 3 pupils)
Length: 16.95 m (55 ft 7.3 in)
Wingspan: 24 m (78 ft 9 in)
Height: 5.25 m (17 ft 2¾ in)
Wing area: 63.3 m² (681.353 ft²)
Empty weight: 4,900 kg (10,803 lb)
Loaded weight: 7,000 kg (15,432 lb)
Useful load: 2,100 kg (4,629 lb)
Max. takeoff weight: 7,500 kg (16,535 lb)
Powerplant: 2 × Nakajima Ha-1 Kotobuki 42 nine-cylinder air-cooled radial engines, 529 kW (710 hp) each
Performance
Maximum speed: 317 km/h (197 mph; 171 kt) at 3,000 m (9,845 ft)
Cruise speed: 222 km/h (138 mph; 120 kt) at 1,000m (3,280 ft)
Range: 2,150 km (1,340 mi; 1,160 nmi)
Service ceiling: 6,780 m (22,245 ft)
Rate of climb: 4.5 m/s (876 ft/min)
Wing loading: 110.6 kg/m² (22.6 lb/ft²)
Power/mass: 0.15 kW/kg (0.20 hp/kg; 0.09 hp/lb)
Armament
Guns: 1× flexible, 7.7 mm (.303 in) Type 92 machine gun in bow and dorsal hatches
Bombs: 2× 250 kg (551 lb) bombs or depth-charges