An enlarged version of the earlier Maeda Ku-1 glider, it was developed during 1942. The use of a twin boom design allowed for a large, square cargo door, which meant that the aircraft was capable of carrying either thirty-two soldiers, 7600 kg of cargo, or even a light tank. It required a powerful towing aircraft, either the Nakajima Ki-49 or the Mitsubishi Ki-67, which were in short supply. As a result, the aircraft were modified by fitting them with engines, which were designated the Ki-105 Ohtori (鳳 "Phoenix").[2] Intended for use as fuel transports, only nine, of 300 ordered, were produced before development priorities were shifted elsewhere.[3]
Ku-7: Large experimental military transport glider.
Ku-7-II: Original designation for the Ki-105.
Kokusai Ki-105 Ohtori: Long-range fuel tanker aircraft, powered by 2x 940 hp (700 kW) Mitsubishi Ha26-II 14-cylinder radial engines; nine built. Maximum take-off weight:12,500 kg (27,600 lb); normal payload:3,300 kg (7,300 lb); cruising speed:220 km/h (140 mph; 120 kn); maximum range: 2,500 km (1,600 mi; 1,300 nmi).[3]
^Rottman, Gordon L.; Akira Takizawa (2005). Japanese Paratroop Forces of World War II. Elite. Vol. 127. Botley, Oxford: Osprey Publishing. p. 12. ISBN978-1-84176-903-5.