Japanese Army Nakajima Ki-44 Shoki interceptor fighters at Akeno Army Flight School, Japan. 1942-45, exact date unknown.
The Nakajima Ki-44 Shoki -Allied codename ‘Tojo’ - was Nakajima’s answer to a Japanese Army’s requirement for an interceptor. The first prototype flew in August 1940 with the first production variant entering service in September 1942.
The design and development of the Ki-44 differed greatly from other Japanese fighters of the time, focusing on speed and rate-of-climb instead of manoeuvrability.
When first introduced into service, the high landing speeds and limited manoeuvrability of the Ki-44 made it unpopular among pilots accustomed to more nimble and manoeuvrable fighters such as the Ki-43 Hayabusa.
During the war several variants of the Ki-44 were built, differing mainly on engine power and armament, the latter being upgraded from two 7,7 mm and two 12,7 mm MG in the Ki44-I series to two 12,7mm MG and two 40 mm cannons (not always mounted due to poor combat performance) or four 12,7mm MG on the Ki44-IIb. Later versions such as the Ki-44-IIIa and b are supposed to have had combinations of 20 and 37 mm cannons but apparently never achieved operational status.
While there were performance restrictions at high altitude, its high rate-of-climb, speed and comparatively heavy armament made the Ki-44 an effective B-29 Superfortress interceptor and its name became commonly associated with Home Island defence operations although some units were also deployed to protect vital targets such as the oil fields of Palembang in Sumatra.
Production of the Ki-44 ended in late 1944 in favour of the more advanced Nakajima Ki-84. Of the 1,225 aircraft built, none survived the war.
Also of note in this photo is the excellent view of a Toyota GB Starter truck. In the background is an Isuzu TX-40 Fuel Truck.
Original: Japanese Army