The first prototype Ki-21 with angular, turreted nose, a semi-hemispherical dorsal turret and a ventral rear-fuselage step. The second prototype differed essentially in having a lengthy dorsal greenhouse later adopted for the series model.
The third prototype of the Ki-21 which featured Ha-5 engines, a hemispherical glazed nose fundamentally similar to that of the Ki-19 and the dorsal greenhouse of the second prototype.
Ki-21-I-Ko bomber assigned to the Hamamatsu Army Flying School for instructional tasks after withdrawal from first-line units and replacement by the Ki-21-I-Otsu from late 1939.
Ki-21-I-Ko bomber assigned to the Hamamatsu Army Flying School for instructional tasks after withdrawal from first-line units and replacement by the Ki-21-I-Otsu from late 1939.
Ki-21-I-Ko bombers assigned to the Hamamatsu Army Flying School for instructional tasks after withdrawal from first-line units and replacement by the Ki-21-I-Otsu from late 1939.
Ки.21-II-Оцу уходит от американских истребителей, 1943 г.
A Ki-21-II-Olsu photographed shortly before its destruction by a US fighter. The distinguishing feature of this type was its dorsal turret which was operated by bicycle pedals with a chain drive for gun traverse.
The Ki-21-II-Ko possessed a significantly higher performance than preceding models of the Mitsubishi bomber as a result of die introduction of Ha-101 engines which were enclosed by aerodynamically cleaner engine nacelles, their increased size permitting the mainwheels to be fully enclosed for the first time.
A Ki-21-II-Ko of the Hamamatsu Army Flying School.
The Ki-21-II-Ko possessed a significantly higher performance than preceding models of the Mitsubishi bomber as a result of die introduction of Ha-101 engines which were enclosed by aerodynamically cleaner engine nacelles, their increased size permitting the mainwheels to be fully enclosed for the first time.
An MC-21-I transport conversion of the Ki-21-I assigned to the Dai Nippon Koku KK, and retaining the fully-glazed nose of the bomber. Most Dai Nippon Koku aircraft were used on military contract routes between the home islands, Manchuria and China.
An MC-21-I transport conversion of the Ki-21-I assigned to the Dai Nippon Koku KK
An example of the MC-21-II transport (J-BMOO) converted from a Ki-21-II-Ko bomber.
Mitsubishi Ki.21-II-Ko Army Type 97 Heavy Bomber Model 2-ko
