Aichi H9A

The Aichi H9A was an Imperial Japanese Navy Air Service flying boat used during the first years of World War II for crew training. An uncommon type, it was not encountered by Allied forces until spring 1945, and was never assigned an Allied reporting name.

Aichi H9A
Class Aircraft
Type Trainer
Manufacturer Aichi Kokuki
Production Period 1942 - 1945
Origin Japan
Country Name Origin Year
Japan 1942
Country Name Operational Year Retirement Year
Japan 1942 1945 View
ManufacturerName Production From Production To Quantity
Aichi Kokuki 1942 1945 31 View

The H9A was a twin-engined, parasol-wing flying boat, designated by Aichi as their AM-212 design, and was designed in response to an Imperial Japanese Navy requirement for an advanced seaplane trainer for future crew members of the four-engined Kawanishi H8K "Emily" flying boat. Design work started in January 1940 and the first of three prototypes was flown in September 1940. The aircraft had a normal crew of five (pilot, co-pilot, observer, flight engineer and a radio-operator) but seating was provided for an additional three pupil crew members.

From May–June 1942, the Aichi H9A was employed in a variety of second-line roles, including anti-submarine missions along the Japanese coasts, transport, paratroop training and liaison.

Role Flying boat trainer
Manufacturer Aichi
First flight 01/09/40
Introduction 1942
Retired 1945
Primary user IJN Air Service
Number built 31

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

End notes