Bomb Assembly

Bomb Nose M.T Fuze M129 (Fig 4-24), designed for aerial burst or impact, is used only with the fragmentation (butterfly) bombs assembled in clusters. Its body diam is 1.75-in, overall length 3.0-in, and wt 0.4-lb. It is equipped with primer M41A1, detonator M31, and booster contg Tetryl pellet in a metal cup... 

Bomb Nose MT Fuze M131A1 (Fig 4-26) is designed for use only with fragmentation (butterfly) bombs assembled in clusters. 

When a fire bomb assembled with this igniter is dropped, the arming wire is pulled and the fuze arms after about 100-ft of air travel. On impact the fuze ignites and explodes burster chge and the rest is the same as described under igniter M15 (Ref 51a, p 5-24)... 

Safety Test, It was to determine whether the bomb can be dropped safely, that is without detonation on impact. It was concerned with the sensitivity, strength, and general design of the fuze, the sensitivity and suitability of the bomb filler, and the structural strength of the bomb assembly... 

Bomb Drop Tests(Bomb Functioning Test) are usually conducted nsing bombs assembled in foe conventional manner, an for service usage, but provided with cither inert or simulated fuzes. The target is usually reinforced concrete Refs l)Ordnance proof Manual, Aberdeen Proving Ground, Nos 9—11(1949) Nos 10— 80(1957) 2)PATR l40l,Rev 1(1958)... 

It has been suggested that complete purification of the TNT is not really necessary in some cases, especially with modern bomb assembly and sealing techniques and the availability of additives to prevent exudation of cast TNT mixts (Ref 6). This proposal merits serious consideration in the light of the problems and energy loss involved in purification as discussed above. The use of low temp during the initial stages of nitration promises to substantially reduce formation of the meta isomers, which will correspondingly facilitate the purification step. This development is discussed under Preparation . Other refs to TNT purification are cited under "Refs (Refs 5,7,10 12)... 

Bichel Closed Bomb Closed Bomb of CSE Bomb of Burlot-Malsallez Closed Bomb of Sarrau-Vieille British Closed Vessel Closed Bomb Assembly... 

Bomb-assembly stand cylinder of oxygen with appropriate fittings large pail for leak-testing the bomb benzoic acid (5 g) naphthalene (5 g) or other solid to be studied pellet press spatula 0.004-in.-diameter iron wire (50 cm) device for checking electrical continuity (optional). 

Since Parsons had not succeeded in person in convincing Groves of the importance of bomb-assembly and bombing practice he wrote the general a forceful memorandum on the day after Christmas. There were major differences, he pointed out, between the gun gadget and the implosion gadget, particularly in terms of final assembly ... 

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