Construction of body: In both types the body is constructed of tin plate rolled into a cylinder with soldered lapped joints. The ogival nosepiece and conical tail-piece are sol-dered to the body. The nosepiece houses a lead weight. The calcium carbide is contain-ed in the forward part of the body, the calcium phosphide in the after part. Two metal tear strips cover water inlet holes in the nose and tail.

Construction of tail: Type 94 Model 2: Three tail fins are soldered to the tail cone. There are no struts. Type 0 Model 1: Four tail fins are soldered to the body and tail cone and are braced by a single set of box-type struts.

Operation: The tear strips are removed before dropping. On impact with the water, the water enters the holes formely covered by the tear strips. Water reacts with calcium phospide to generate phosphine and calcium carbide to generate acetylene gas. On con-tact with the air phosphine ignites spontaneously and the resultant flame is fed by the acetylene which acts as the main source of fuel.

Remarks: The Type 0 Model 1 float light has a deflector on the exterior of the nose-piece which prevents it from penetrating too deeply into the water.

Figure 81 - Type 94 Model 2 and Type 0 Model 1 Float Lights.