Derived from the Ki-67 Hiryu bomber as a heavy interceptor, the Ki-109 was originally conceived in two versions: the Ki-109-ko mounting two obliquely-firing 37mm cannon and the Ki-109-otsu equipped with radar and a 40cm searchlight. The intention was
that the two versions of the aircraft would work as a team. Soon thereafter the Ki-109 project was redefined as a bomber interceptor mounting a 75mm Type 88 cannon with which it could attack its quarry while remaining beyond the range of opposing defensive armament. Converted from a Ki-67 airframe and retaining the dorsal, lateral and tail gun positions of the bomber, and the Mitsubishi Ha-104 engines each rated at 1900hp for take-off, the first Ki-109 prototype was completed in August 1944. The second prototype was powered by Ha-104ru engines with Ru-3 turbo-superchargers, and it was intended that these would be installed in the final 22 aircraft of an initial batch of 42 Ki-109s. The first series Ki-109 dispensed with the dorsal and lateral gun positions, retaining only the tail position which mounted a single 12.7mm machine gun. Primary armament was the single 75mm cannon with 15 shells individually loaded by the co-pilot. In the event, production difficulties with the Ru-3 turbo-supercharger prevented its application to any series Ki-109s, and only 20 production aircraft were completed, these having standard Ha-104 engines.
| ENGINE||2 x Army Type 4, 1425kW|
| Take-off weight||10800 kg||23810 lb|
| Empty weight||7424 kg||16367 lb|
| Wingspan||22.5 m||74 ft 10 in|
| Length||17.95 m||59 ft 11 in|
| Height||5.8 m||19 ft 0 in|
| Wing area||65.85 m2||708.80 sq ft|
| Max. speed||550 km/h||342 mph|
| Range||2200 km||1367 miles|
| ARMAMENT||1 x 75mm cannon, 1 x 12.7mm machine-guns|
|A three-view drawing (752 x 989)|
This plane has a GUN.
Looking to find a 1/72 model of this plane to complete my collection.........thanks D
Do you have any comments about this aircraft ?