Ki-36
General information
Type	Two-seat Army Co-operation Aircraft
Manufacturer	Tachikawa Aircraft Company Ltd
Primary users	Imperial Japanese Army Air Force Royal Thai Air Force
Number built	1,334
History
Manufactured	1938 - 1944
First flight	20 April 1938
Variants	Tachikawa Ki-55

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.

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).^[1]

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.^[2]

• 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.

 People's Republic of China

• Chinese Communist Air Force operated two captured aircraft postwar as trainers until their retirement in early 1950s.

 Indonesia

• Indonesian People's Security Force

 Japan

• Imperial Japanese Army Air Force

 Thailand

• Royal Thai Air Force

Data from Japanese Aircraft of the Pacific War,^[2] and The Concise Guide to Axis Aircraft of World War II ^[3]

General characteristics

• 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^[4]
• 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 (5,600 ft)

Performance

• 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 (9,800 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)

Armament

• 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 350 kg (772 lb) external bombload

Related development

• Tachikawa Ki-55

Related lists

• List of military aircraft of Japan

• Francillon, René J. (1979). Japanese aircraft of the Pacific War. London: Putnam. ISBN 0-370-30251-6. OCLC 6124909. (new edition 1987 by Putnam Aeronautical Books, ISBN 0-85177-801-1.)
• Mondey, David (1996). Axis aircraft of World War II. London: Chancellor Press. ISBN 1-85152-966-7. OCLC 46705109.
• Soumille, Jean-Claude (September 1999). "Les avions japonais aux coleurs françaises" [Japanese Aircraft in French Colors]. Avions: Toute l'Aéronautique et Son Histoire (in French) (78): 6–17. ISSN 1243-8650.

Wikimedia Commons has media related to Tachikawa Ki-36.

• The Ki-55 at the Royal Thai Air Force Museum
• The Ki-36 at the China Aviation Museum
• Manual for Operating Type 98 Direct Cooperation Plane – National Diet Library