CONSTRUCTION. The bomb consists of four main parts: the outer casing, tail cone, nose and a central cylinder which protrudes from the nose and extends aft to the for-ward part of the tail cone where it is terminated by a fuze housing crimped to it. This fuze housing extends the full length of the tail cone. The outer casing is empty except for metal ribs and braces which locate and support the central tube. The four tail fins are tack welded to this cone. The central cylinder contains the smoke producing agent. It is held in the outer casing by six bolts at the nose; a rubber washer waterproofs this joint. The igniter is contained in a pocket at the rear end of the central tube immediately be-low the fuze. The fuze housing is located by four set screws to insure that the correct distance is maintained between the flash cap and the igniter. (See fig. 62.)

The fuze has a spring loaded strike held away from the flash cap by retaining ball. They are held in place by a release rod passing down through the center of the striker. At the tail end, this rod passes through a circular plate and is held by a split pin. The circular plate is fastened by three screws to a drouge plate which is lipped over the tail fins. It is fastened to the tail by four projections from the fins which pass through the slots and are then bent over. Waterproofing at the trail is provided by a rubber seal. On impact with the water, the tail drouge is wrenched off and carries the fuze release rod with it. The fuze fires and the smoke producing agent is ignited. When the bomb floats to the surface, heat destroys the rubber seal and smoke is emitted.

SUSPENSION. Vertical or horizontal.

COLOR AND MARKINGS. Bomb casing is painted aluminum; the tail is olive green; the protruding portion of the central cylinder is yellow. "NC 50 W-C" is stenciled transversely across the body just forward of the shoulder. "Nicht für Senkrecht-Aufhängung" stenciled longitudinally from nose aft to the other marking.

SIMILAR BOMBS. NC-D/See: This bomb, a flaoting 50-kg smoke bomb, is constructed similarly to the NC 50 W-C. It gives off a white fog or smoke. The over-all weight is ap-proximately 22 kg. It is fitted with the AZ (46) fuze. As the fuze is installed when the bomb is shipped the safety precaution must be highly respected.

Figure 62 – NC 50 W-C Smoke Bomb