TheKawasaki Ki-102 orType 4 Attack Plane (四式襲撃機,Yonshiki shūgeki-ki) was a twin-engine, two-seat, long-rangeheavy fighter developed to replace theKi-45Toryū. Three versions were planned: the Ki-102 Kō dayfighter, Ki-102 Bground-attack, and Ki-102 Cnight fighter. This aircraft'sAlliedreporting name was "Randy".
The Ki-102 entered service in 1944 but saw limited action. The main type (Ki-102 B) was kept in reserve to protect Japan, although it did see some limited duty in theOkinawa campaign. It was kept out of front line service because it was hoped that it would be the carrier of theKi-148 air-to-surface guided missile when the Allied invasion of Japan occurred.
Externally similar to the Ki-102 B, but withturbosuperchargers that enabled the engines to maintain their rating at higher altitudes. The 57 mm (2.24 in) cannon was swapped in favor of a 37 mm (1.46 in) cannon, and the 12.7 mm (.50 in) rear gun was deleted, 26 built.
Ki-102 B (otsu/乙)
Ground-attack variant similar to prototypes, except with revised tail wheel, 207 built
Ki-102 C (hei/丙)
Night fighter version with lengthenedfuselage and span.Radar under aPlexiglas dome, oblique-firing 20 mm cannons, and the 20 mm cannons in the belly replaced with 30 mm (1.18 in) cannons inSchräge Musik behind the cockpit, two built.
Ki-108
High-altitude fighter prototype withpressurised cabin, two conversions from Ki-102 B aircraft using the structural improvements used on the Ki-102 C.
Ki-108 Kai
Improved version of the Ki-108 with longer fuselage and enlarged wings. Two built.
