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Ki-102 “Randy”, Japanese Light Bomber


Photograph of Ki-102 "Randy"

Wikipedia Commons


Kawasaki Ki-102b “Randy”


Specifications:


Crew 2
Dimensions 51’1” x 37’7” x 12’3”
15.57m by 11.45m by 3.7m
Wing area 366 square feet
34 square meters
Weights 10,913-16,094 lbs
4950-7300 kg
Maximum speed       360 mph at 19,685 feet
580 km/h at 6000 feet
Climb rate 40 feet per second
12.2 meters per second
Service ceiling 32,810 feet
10,000 meters
Power plant
Two 1500 hp (1118 kW) Mitsubishi Ha-112-II Ru 14-cylinder two-row radial engines driving constant speed three bladed metal propellers.
Armament 57mm Ho-401 cannon in the nose
Two 20mm Ho-5 cannon fixed in the belly
One manually aimed 12.7mm Ho-103 machine gun in the rear cockpit
External stores
Two 250kg (551 lb) bombs or two 44 gallon (167 liter) drop tanks
Range 1243 miles
2000 km
Production 238 Ki-102, including 215 Ki-102b production aircraft at Kawasaki Kokuki Kogyo KK from 1944-10 to 1945-7
Variants The Ki-102c was a night fighter version armed with two 30mm Ho-105 cannon in the fuselage belly and two 20mm Ho-5 cannon mounted obliquely in the fuselage. It carried a revolving dish radar in a plexiglass dome on the top of the fuselage. This version could not carry bombs. The war ended before it came into full production.


The Ki-102 was derived from the Ki-96 heavy fighter, a twin-engined aircraft with a pressurized cabin for high altitude that never went into production.  The design team, led by Doi Takeo, suggested to the Army that a ground attack version of the Ki-96 should be developed to replace the Ki-45 "Nick". Approval was given in August 1943 and the first prototype flew in March 1944.

The Ki-102 added armor and fuel tank protection and heavier armament to the Ki-96, yielding a capable ground attack aircraft. Its performance and handling were considered highly satisfactory. Most were held in reserve in Japan against a possible Allied invasion, but a few were released for action in Okinawa. The aircraft was also the intended platform for the Igo-1-B air-to-surface guided missile, which was being rushed through development for use against any Allied invasion of the home islands.

A night-fighter version (Ki-102c) was prototyped but never saw combat.

References

Francillon (1979)



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