Ke-Go was one of the first guided weapons, deployed by the Yokosuka Naval Air Technical Arsenal of the Imperial Japanese Navy.

Ke-Go
Type	Smart bombs
Place of origin	Japan
Service history
In service	1945
Used by	Imperial Japanese Navy
Wars	World War II
Production history
Manufacturer	Yokosuka Naval Air Technical Arsenal
Specifications
Mass	800 kg (1,764 lb)
Length	5.49 m (18 ft)
Width	2.85 m (9 ft 4 in)
Guidance system	Infrared homing

Testing three models of the first bombs were made in early 1945. The bombs were dropped on the heat target 10 × 30 meters (the fire burning on the raft). The results were not satisfactory, despite the fact that the homing head worked quite satisfactorily. Only 5 or 6 out of 50 bombs dropped hit the target. Based on these results, the fleet created two new models with improved guidance, but by the time the bombs were ready for testing, the war ended.^[1]