|Role||Two-seat Army Co-operation Aircraft|
|Manufacturer||Tachikawa Aircraft Company Ltd|
|First flight||20 April 1938|
|Primary users||Imperial Japanese Army Air Force|
Royal Thai Air Force
|Produced||1938 - 1944|
The Tachikawa Ki-36 (named Ida in Allied reporting code) was a Japanese army co-operation aircraft of World War II. It was a two-seat, low-wing monoplane with a single piston engine and fixed, tailwheel-type undercarriage.
Design and development
The prototype, fitted with a 450 hp (336 kW) Hitachi Army Type 98 Ha-13 engine, first flew on 20 April 1938. Having outperformed the Mitsubishi Ki-35 in comparative trials, the Ki-36 was designated the Army Type 98 Direct Co-operation Aircraft and ordered into production in November 1938. Production ended in January 1944 after a total of 1,334 Ki-36 had been built (Tachikawa 862 and Kawasaki 472).
The Ki-36 first saw action in China where it saw success. Later, in the Pacific, it proved excessively vulnerable to opposing fighters. It was thereafter redeployed to the safer theater of China. Towards the end of the war, the Ki-36 was employed as a kamikaze aircraft with a bomb of 500-kg (1,102-lb) fitted externally.
- Ki-55 : Two-seat advanced trainer version.
- Ki-72 : An evolved version with a 600-hp (447-kW) Hitachi Ha-38 engine and retractable undercarriage. Not built.
- Chinese Communist Air Force operated two captured aircraft postwar as trainers until their retirement in early 1950s.
- Crew: 2
- Length: 8 m (26 ft 3 in)
- Wingspan: 11.8 m (38 ft 9 in)
- Height: 3.64 m (11 ft 11 in)
- Wing area: 20 m2 (220 sq ft)
- Airfoil: root: NACA 23014; tip: NACA 23006
- Empty weight: 1,247 kg (2,749 lb)
- Gross weight: 1,660 kg (3,660 lb)
- Powerplant: 1 × Hitachi Ha13a (Army Type 98 450hp Air Cooled Radial) 9-cylinder air-cooled radial piston engine, 380 kW (510 hp) for take-off
- 350 kW (470 hp) at 1,700 m (5,577 ft)
- Maximum speed: 348 km/h (216 mph; 188 kn)
- Cruise speed: 235 km/h (146 mph; 127 kn)
- Range: 1,235 km (767 mi; 667 nmi)
- Service ceiling: 8,150 m (26,740 ft)
- Time to altitude: 3,000 m (9,843 ft) in 6 minutes 39 seconds
- Wing loading: 83 kg/m2 (17 lb/sq ft)
- Power/mass: 0.23 kW/kg (0.14 hp/lb)
- Guns: one fixed, forward-firing 7.7 mm (0.303 in) Type 89 machine gun , one flexible 7.7 mm (0.303 in) Type 89 machine gun in the rear cockpit.
- Bombs: up to 150 kg (331 lb) external bombload
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