Mitsubishi Ki-67

from Wikipedia, the free encyclopedia
Mitsubishi Ki-67 Hiryu
Mitsubishi Ki-67
Mitsubishi Ki-67
Type: Bomb plane
Design country:

Japanese EmpireJapanese Empire Japan



First flight:

December 27, 1942

Number of pieces:


The Mitsubishi Ki-67 Hiryu ( Flying Dragon ) proved to be the best heavy bomber in the Japanese Army Air Force during the Pacific War . The Allied code name for the Ki-67 was Peggy .


Its development began in 1941 using structural elements from the G4M1 naval bomber to succeed the Nakajima Ki-49 , again as a twin-engine machine with radial engines . In addition to the ability to fall, the Japanese Army's tender explicitly required strong defensive armament and a high degree of survivability in the event of severe fire damage. Hence the aircraft was also classified as a heavy bomber (by the Army, although twin-engine aircraft are commonly classified as medium bombers). The first of three prototypes was completed in December 1942 and made its maiden flight on December 27, 1942. Series production was initiated using all available manufacturing capacity with the highest level of urgency, but the number remained due to the increasing American bombing raids on suppliers and final manufacturing companies of the Japanese aviation industry relatively low (698 Ki-67-I were built).

It was used from October 1944 on both land and sea, since torpedo suspensions were attached to all machines as standard after the flight tests were completed. A three-seat variant that had been converted for Kamikaze missions was called the Ki-67-I KAI , a heavy fighter version with a 75 mm cannon ( Ki-109a or Ki-109b ) that appeared in August 1944 was only 22 times built.

The Ki-67 proved to be fast and maneuverable, but the effectiveness of its use increasingly suffered from the lack of experienced flight personnel, most of the crews came directly from the flying schools to the front. Towards the end of the war, a test version called To-Go with a modified bow and the radio observation aircraft Ki-167 were created , both of which, however, were no longer used.

Technical specifications

Mitsubishi Ki-67
Parameter Data (Mitsubishi Ki-67-I)
Conception heavy bomber / torpedo bomber in all-metal construction
crew 7th
length 18.70 m
height 7.70 m
span 22.40 m
Wing area 64.90 m²
Empty mass 8,650 kg
Takeoff mass 14.097 kg
Engine two Mitsubishi Ha-42-11 with 1,900 HP (approx. 1,400 kW) takeoff power each
Top speed 550 km / h
Rate of climb 510 m / min
Range 3,200 km
practical summit height 9,150 m
Armament one posable 20mm MK Ho-5
four posable 12.7mm MG Ho-103
Bomb load 1,600 kg

See also

List of aircraft types

Web links

Commons : Mitsubishi Ki-67  - collection of pictures, videos and audio files