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The bomb consists of a cylindrical body to which the tail unit is secured. The body houses a metal container filled with a smoke composition, and a gunpowder ejection charge contained in nine celluloid capsules. The bomb body is steel tube welded to a flattened nosepiece. The nose-piece is centrally tapped to receive the fuse, and, during transit and storage, is sealed by a nose transit plug and leather wisher. A suspension lug is welded to the exterior of the bomb body.
A steel flash plate, abutting the nose-piece within the bomb body, has a steel collar secured to it. A small centrally-located hole is drilled through the :lash plate, and is sealed by a paper disc. The nine celluloid capsules, each filled with 1 oz. 1 drm. of gunpowder, are retained in the collar by a cardboard sleeve, and felt a ad cardboard washers. The sleeve has six equi-spaced holes near its inner end.
The metal container, Ailed with approximately 50 lb. of smoke composition (H.C.E.), is housed in the bomb body against the flash plate It has a 3-in, diameter hole sealed with a celluloid disc. Between this disc and the smoke composition there are four strawboard washers, each with a 1 ½ diameter hole; the hole so formed being sealed by two squares of primed fabric, The container is retained in position against the flash plate by a closing plate fitted into the rear end of the bomb body, and secured by four turned-over metal tabs.
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