Super-Heavy Tank "O-I"
- Introduced Year : -
- Weight : 120 ton
- Dimensions: 10.0 x 4.2 x 4.0(h) m
- Armor (max) : 200 mm
- Speed (max) : 25 km/hr
- Engine : Gasoline Engine 550 HP/1500 rpm x 2
- Armaments : 105 mm Cannon x 1, Type 1 47 mm x 1, Type 97 7.7 mm x 3
- Crew : 11
Heavy armored and heavy armed tank. One prototype was built in 1943. But, it was an unpractical tank and the project of O-I was abandoned. The prototype was scrapped before the WWII ended. No photo of O-I is known and the above picture is based on presumption.