The Type-60 self-propelled 106 mm recoilless gun (or rifle) (60式自走無反動砲, roku-maru-shiki-jisou-muhandou-hou) is a light anti-tank vehicle developed by Japan in the late 1950s.
In the mid-1950s the Japan Ground Self-Defense Force contracted for one prototype each from Komatsu (SS1) and Mitsubishi Heavy Industries (SS2) powered by a 110 hp six-cylinder diesel engine and fitted with two 105-millimeter (4.1 in) recoilless rifles.
The Type 60 was designed for ambush attacks against enemy tanks, and mounting four weapons gave the vehicle a rather high profile.
The commander is seated to the left of the two weapons and his position is attached to their mounting so that he remains at the same height when they are elevated for firing.
The loader is seated to the left of the commander and must exit through his rear-opening hatch to reload the recoilless rifles while on top of the engine deck or behind the vehicle.