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Over-All Length: 3 ft. 7 in. Body Length: N/A Body Diameter: 7.75 in. Wall Thickness: N/A Tail Length: N/A Tail Width: 11 in. |
Total Weight: N/A Type Of Filling: Smoke producing composition. Weight Of Filling: N/A Charge/Weight Ratio: N/A Fuzing: Mechanical impact fuze built into bomb. |
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 forward 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 below 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 primer.
The fuze spring 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 in place by a split pin. The circular plate is fastened by three screws to a drogue 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 tail is provided by a rubber seal.
OPERATION: On impact with the water, the tail drogue 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 WC" is stencilled transversely across the body just forward of the shoulder. "Nich fur SenKrecht-Aufhangung" stenciled longitudinally from nose aft to the other marking.
SIMILAR BOMBS: NC D/See: This bomb, a floating 50-kg smoke
bomb, is constructed similarly to the NC 50 WC. It gives off a white fog or smoke. The
over-all weight is approximately 22 kg. It is fitted with the AZ (46) fuze. As the fuze
is installed when the bomb is shipped the safety precautions must be highly respected.
All information for this entry were acquired from Army Technical manual TM 9-1985-2/Air Force Technical Order TO 39B-1A-9 GERMAN EXPLOSIVE ORDNANCE (Bombs, Fuzes, Rockets, Land Mines, Grenades & Igniters)
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