Mitsubishi Ki-147

The Mitsubishi I-Gо̄ Model 1 Kо̄ (No.1 Model 1A), otherwise known as Ki-147 was a radio-guided air to surface missile developed by Japan in World War II.^[1] The Imperial Japanese Army's main envisioned role for the platform was for strikes against U.S. and allied ships. The Ki-147 was planned to be installed on Ki-67 heavy bombers which would act as the control platform.^[2] The Ki-147 was developed during 1944-1945 along with its sister project of the smaller Kawasaki I-Gо̄ Model 1 Otsu (Ki-148) radio-guided air-to-surface missile and the later Tokyo Imperial University designed I-Gо̄ Model 1 Hei.^[3]

Mitsubishi Ki-147 underneath a Ki-67 heavy bomber.

The first prototype of the Ki-147 was completed in October 1944, and 10 missiles were completed in November. Drop tests were later conducted, but due to malfunction of the gyro stabilizer and difficulties in adjusting the radio equipment for operation, it was not put into practical use.^[4]

Specifications

• Length: 5.77 m (18 ft 11 in)
• Wing Span: 3.60 m (11 ft 10 in)
• Height: 1.06 m (3 ft 6 in)
• Wing Area: 3.60 square metres
• All-Up Weight: 1,400 kg
• Main Engine: 1 x Toku-Ro Mark 1 Model 3 rocket (240 kgf)
• Max Speed: 550 km/h
• Range: 11 km
• Warhead: 800 kg No.80 ordinary bomb