[1][2] The Ki-67 was designed by a team led by Kyūnojō Ozawa, chief engineer at Mitsubishi, and was a mid-winged monoplane of all-metal construction, with a retractable tailwheel undercarriage.
It was fitted with self-sealing fuel tanks and armor,[2][3] features common in US fighters and bombers but frequently lacking in Japanese aircraft.
With these features and its two 1,417 kW (1,900 hp) 18-cylinder air-cooled radial engines, the Ki-67 was perhaps one of the most sturdy and damage-resistant Japanese aircraft of World War II.
In the last stages of World War II, the Japanese Navy also used the design as the basis for the Mitsubishi Q2M1 "Taiyo" radar-equipped anti-submarine aircraft.
In the last stages of World War II, special attack versions of the Ki-67 (the I KAI and Sakura-dan models) were used in kamikaze missions.
Seiji Moriyama, a crew member in Fugaku Special Attack Unit, who witnessed Ki-67's being converted into To-Gō suicide planes with two 800 kg/1,760 lb bombs during Okinawa operations.