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Japan's Imperial Army flag

Japan's Kawasaki Ki-32 bomber, Army Type 98
Allied code: Mary

Photos

  • Kawasaki Ki-32, Army Type 98 bomber
  • Kawasaki Ki-32, Army Type 98 bomber

 

Design

Kawasaki and Mitsubishi were asked by the Japanese Army in 1936 to develop a monoplane that had:

  • Single engine
  • Carry 660 - 990 lbs / 661 - 992 lbs / 300 - 450 kg of bombs
  • Cruise at 186 mph / 187.5 mph / 300 kph
  • Fly between 6,500' and 13,000' / 6,560' - 13,125' / 2,000 - 4,000 m
  • Maximum speed of 248.5 mph / 250 mph / 400 kph at 9,845' / 10,000' / 3,000 m
  • Armament of two machine guns, one forward firing the other a flexible rear firing

Isamu Imashi and Shiro Ota designed the plane with a liquid cooled engine. The Mitsubishi and Kawasaki designs were similar and the Mitsubishi Ki-30 was put into production. With war coming it was decided to produce both of them side by side.

Construction

The Ki-32 was of an all metal construction with fabric covered control surfaces.

Engine

The Kawasaki Ki-32 was the last bomber used by the Japanese Army that used a liquid cooled engine as they were more vulnerable than air cooled.

Landing Gear

The landing gear was fixed.

Wings

The wings were mid-wing cantilevers.

Prototype

The prototype first flew in March 1937. There were many engine problems which resulted in the crankshaft being made stronger and the engine nacelle being improved.

The Army liked the flying ability of the Ki-32 but the Ki-30 was ordered for production as it had the more reliable engine.

In July 1938 the Ki-32 was put into production.

Production

  • Prototypes: 8
    • Production: 1937
  • Kawasaki Ki-32: 846, 854
    • Production: 1938 - May 1940, July 1938 - May 1940
  • Manufacturer: Kawasaki Kokuki Kogyo K.K.

Usage

The Ki-32 was first used in China and was used until the beginning of 1942. After which it was moved to be a trainer.

Units

  • Sentais: 3, 6, 10, 35, 45, 65, 75

Hong Kong

The Ki-32s were used in the bombing of Hong Kong before the surrender of the British forces.

Specifications

  Kawasaki Ki-32
Type Bomber, Light Bomber
Crew 2
Pilot, Radio Operator/Bombardier
Engine (Type) Kawasaki Ha-9-IIb
Cylinders V 12
Cooling Liquid
Net HP 850
Propeller blades 3 metal variable pitch
Dimensions  
Span 49' 2", 49' 2 9/16"
15 m
Length 38' 2", 38' 2 9/32"
11.64 m
Height 9' 6", 9' 6 3/16"
2.9 m
Wing area 365.972 sq ft
34 sq m
Weight  
Empty 5,179 lb
2,349 kg
Loaded 7,802 lb
3,539 kg
Performance  
Speed at 12,925' / 5,000 m 263 mph
423 kph
Cruising speed 186 mph
300 kph
Climb to 16,405' / 5,000 m 10 minutes 55 seconds
Service ceiling

29,265'
8,920 m

Range 826 miles
1,300 km
Range - Maximum 1,218 miles
1,960 km
Armament 2: MG
Nose 1: 7.7 mm Type 89 MG
Cockpit - Rear 1: 7.7 mm Type 89 MG
Bombs 992 lb
Bombs - Normal 661 lb
300 kg
Bombs - Maximum 450 kg
992 lb

Sources:

  1. World War II Airplanes Volume 2, Enzo Angelucci, Paolo Matricardi, 1976
  2. Japanese Aircraft of the Pacific War, René J Francillon, 1970
20th Century American Military History Crucial Site