This fuze is a Japanese Army attempt to produce a remotely controlled bomb detonating device which whould allow the operator to detonate the bomb at any time during its flight. It operate the bomb at any time during its flight. It operates on electronic princip-les, and is fired on reception of the proper radio signal from the operator.

Physically, the fuze is large and cumbersome, being 9 inches in length, exclusive of any provision for an explosive gaine. The lower portion is in the shape of a rectangular prism 3 3/6 x 3 3/8 x 4 3/4 inches. The top 4 1/4-in- ches is in the shape of a pyramid. A set of anemometer vanes is mounted on the side of the pyramidal portion. The electronic equipment is protected by an outer cover of sheet aluminum.

The device is apparently intended to be operated by an observer in the airplane from which the bomb is dropped, equipped with a sending device to produce the required radio firing signal. Arming ia accomplished by means of arming vanes which allow two arming to close after air traved.

This fuze was still in the experimental stage, and no attempt had been made to fit it to a bomb. A large bomb, possibly of the incendiary shrapnel type, to be used against enemy bomber formations is indicated.

Figure 113 – Remote-Control Radio Fuze