Tachikawa Ki-36 IDA


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Tachikawa Ki-36 IDA

First flown in prototype form on 20 April 1938, the Tachikawa Ki-36 was a cantilever low-wing monoplane of all-metal basic structure, covered by a mix of light alloy and fabric. Landing gear was of fixed tailwheel type, the main units enclosed in speed fairings, and power was provided by a 336kW Hitachi Ha-13 radial engine. The two-man crew was enclosed by a long 'greenhouse' canopy and both men had good fields of view, that of the observer being improved by clear-view panels in the floor. The type was ordered into production in November 1938 as the Army Type 98 Direct Co- Operation Plane. Generally similar to the prototypes, the type was armed with two 7.7mm machine guns and introduced the more powerful Hitachi Ha-13a engine. When construction ended in January 1944, a total of 1,334 had been built by Tachikawa (862) and Kawasaki (472).

The handling characteristics and reliability of the Ki-36 made the army realize that it was ideal for use as an advanced trainer, resulting in development of the Ki-55, intended specifically for this role and having armament reduced to a single forward- firing machine-gun. Following the testing of a prototype in September 1939, the army ordered this aircraft as the Army Type 99 Advanced Trainer; when production was terminated in December 1943 a total of 1,389 had been built by Tachikawa (1,078) and Kawasaki (311).

Both versions were allocated the Allied codename 'Ida', and the Ki-36 was first deployed with considerable success in China. However, when confronted by Allied fighters at the beginning of the Pacific War it was found to be too vulnerable, being redeployed in China where it was less likely to be confronted by such aircraft. It was also considered suitable for kamikaze use in the closing stages of the war, being modified to carry internally a bomb of up to 500kg.

Tachikawa Ki-36 IDA

 ENGINE1 x Hitach Ha-13a, 380kW
  Take-off weight1660 kg3660 lb
  Empty weight1247 kg2749 lb
  Wingspan11.8 m39 ft 9 in
  Length8 m26 ft 3 in
  Height3.64 m12 ft 11 in
  Wing area20 m2215.28 sq ft
  Max. speed348 km/h216 mph
  Cruise speed236 km/h147 mph
  Ceiling8150 m26750 ft
  Range1235 km767 miles
 ARMAMENT2 x 7.7mm machine-guns, 150kg of bombs

Tachikawa Ki-36 IDAA three-view drawing (752 x 978)

Trervor Webb, e-mail, 09.02.2012 03:49

Near the end of the was, a development of the Ki-36 was planned. It was designated Ki-72, had a retracting undercarriage and a 600 hp (447 kW) Hitachi Ha-38 engine. None were completed by the end of the war.


lxbfYeaa, e-mail, 14.03.2024 Trervor Webb



huaren, 20.06.2011 14:32

The last surviving Tachikawa Ki-36 Ida can be found at the Royal Thai Air Force Museum at Don Muang Airport, Bangkok,


ABC, e-mail, 23.10.2007 18:03

The one in Thailand is a Ki-55, and it's not the last one in the world. There is also one in Beijing, china


Roger Ward, e-mail, 20.12.2006 04:10

The last surviving Tachikawa Ki-36 Ida can be found at the Royal Thai Air Force Museum at Don Muang Airport, Bangkok, Thailand. www.rtaf.mi.th /museum /BLDG2-2.HTM


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