Demolition charges

Fuze, Bullet Impact. A fuze designed to set off a demolition charge by the impact of a bullet. Eg Fuze, Bullet Impact Ml -for projected charge demolition kit M2A1 and M3... 

C) MIL-C-46246C(MU) (Charge, Demolition, TNT, Block, 1/4 Pound, 1/2 Pound, and 1 Pound)... 

Charges, Demolition Articles containing a charge of a detonating explosive in a casing of fibreboard, plastics, metal or other material. The term excludes the following articles which are listed separately bombs, mines, etc. UN App. B, ICAO A2... 

ZerstSrbarkeit, /. destructibility. zerstdren, v.t. destroy break down, ruin. ZerstSrladtmg, /. demolition charge. 

It is designed to breach a path thru a mine field upon the deton, by fire from the pushing tank s machine guns, of the linear shaped charges (Ref 1). Earlier designs were termed snake, demolition (Ref 3)... 

New Explosive Co, Ltd. At Stowmarket, Engl, it was the first plant to manufacture compressed blocks of wet NC by Abel s method. These blocks were used as bursting charges in various projectiles as well as for demolition purposes. This facility also manufd Dynamites, Gelignite, Cordite, Carbonite, etc Ref Daniel (1902), 451... 

A Compn contg AN 72, K perchlorate 10, wood meal 3, and a eutectic mixt of DNT and TNT 15%, was used as a demolition charge and for loading bombs and trench mortar shells. 

In the testing of demolition expls, eg, those intended for the destruction of rails, various charges can be detonated against an exptl rail until the minimum amount of charge required is established... 

PTX-1. An expl developed at PicArsn during WWII for use in land mines and demolition charges. It contained Tetryl 50, RDX 30 and TNT 20% mw 252 OB to CO -9%, to C02 —45% mp, eutectic 67°, pouring temp 90—95° d (cast) 1.68g/cc exudes at 65° and above sol in acet. Prepd by adding the appropriate wt of w-wet RDX to 40/60 Tetrytol previously melted in a steam-jacketed melt kettle. Heating and stirring are continued until all the w is evapd and the mixt is uniform in compn. It can also be prepd by adding Tetryl to Composition B Blast. Relative to TNT in air impulse 109%,... 

There are many miscellaneous applications of explosives which may be mentioned but which do not merit individual description. Such uses are those in agriculture, in the preparation of ditches, the diversion of streams, removal of tree stumps, and the breaking up of subsoil. Demolition of old buildings and chimneys is readily carried out. Underwater wrecks may also be broken up for disposal by special application of explosive charges. 

The standard charge provides a basic, versatile demolitions tool which can be made up in advance and utilized in many situations, especially when specific knowledge of the target is not available. 

On the final day of testing a TNT demolition charge was substituted for the test target constructed from the TNT simulant. The block of explosive was prepared in a manner consistent with how the block would normally be deployed for use. The block was then deployed from the post as previously described. The sensor was positioned at the downcurrent side of the post at a distance of approximately 3 ft. The sensor immediately indicated a strong response to the explosive. 

The Classification of Some Demolition Explosives by Pressure Bar Test , ARDE Memo (MX) 53-58(1958) B) Dunkle s Syllabus (1957-195 8), 306-10 (Calculation of charges for demolition expls)... 

Many other weapons utilizing hollow charges were designed and used in WWII, such as HE and AP (armor-piercing) shells, demolition charges, land and sea mines, torpedoes, etc. These weapons played a very important part in WWII. For example, in Ref 22, pp 11-16, are described various Amer demolition charges employed during WWII. They are now probably obsolete... 

PATR 2700, Vol 3 (1966), p D256 (Demolition devices using shaped charges)... 

Another example in which the calculation of chges is of importance is in the determination of demolition charges for particular tasks. Formulas for calculations of charges used in the field by the US Army are listed by Dunkle on pp 309-10. They are taken from the Field Manual, "Explosives and Demolitions , listed here as Ref 2. This Manual has been replaced by Technical Manual listed here as Ref 4... 

A firing device is designed to initiate a train of fire or detonation in demolition charges, boobytraps, or mines, principally by action on... 

In Section 3 are described components used for initiating propellants in small arms ammunition and in artillery ammunition. Also included are some initiators for military demolitions and for pyrotechnic items. In order to understand more clearly the function of iniators in ammunition, cutaway views of complete rounds (which includes cartridges and projectiles) of "fixed" and "semifixed ammunition are given in Vol 1 of Encycl (Ref 43), p A385-L, under "AMMUNITION." Section 3 gives also description of initiation of propellant charges in mortars, together with cutaway views of 60-mm, 81-mm and 4.2-inch mortar rounds... 

Bullet Impace Fuze, MI AI for Demolition Snake M3 consists of a body (which contains a detonator and two shaped-charge boosters), a target plate of 3/8-inch thick steel and a spring mounted on three studs. The target plate bears on a firing pin which is restrained by a shear pin and safety fork. The fork must be removed before the fuze can be operated. 

Fig l-99a given here represents cutaway and rear views of fuze, while Fig l-99b shows its attachment to the demolition charge M3A1. The shield shown on Fig 1-100 serves as a bracket for mounting the fuze and protects it from premature detonation Fuze M1A1 can also be used with "bangalore torpedos" which are described in vol 2 of Encycl, p B16-R (Ref 44)... 

Italian Igniters, pp 173-76 Chemical Delay Igniter (for demolition charges), Time Delay (Lead shear wire), Friction Delay (Micca Da 40 60) 50-Day Clock French Bomb Fuzes, Mechanical Impact Nose, pp 189-200 Type A, Type H, Type RSA Models 1925, 1928, 1929 1930, Type MBis, Nos 9, 10 11 Ditto, Tail Fuzes, pp 201-03 No 3 Bis,... 

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