U.S.N.B.D. - BRITISH LAND MINES AND FIRING DEVICES |
DEMOLITION CHARGES & EXPLOSIVES |
MILITARY (ARMY) EXPLOSIVES |
I. |
DETONATORS (BLASTING CAPS): |
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The standard British military detonators are the following: |
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Detonator |
Type |
Dimensions |
Container |
Explosive |
Exp.Wt. |
Remarks |
No. 8 Mk VII | Non-electric | 1¼" x ¼" | Copper tube | Mecury | 2 grams | Red | |
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Fuliminate |
.057 oz. |
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No. 27 Mk I | Non-electric | 1¾" x ¼" | Aluminum tube | A.S.A. & | 9 grams | Replac- | |
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Tetryl |
.031 oz. |
ing No. 8 |
No. 33 Mk I | Electric | 1¾" x ¼ | Aluminum tube | A.S.A. & | 9 grams | ||
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Tetryl |
.031 oz. |
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II. |
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Most British explosives are not initiated by a blasting cap or detonator directly, but rather by a special "Primer", or booster charge, placed bwteen the detonator and the main charge. The following military primers are in use. |
Primer |
Weight |
Dimensions |
Remarks |
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Guncotton, dry | 1 oz. | 1¼" x 1.35" to 1.15" | Surface gelatinized with | |
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Mks I & II |
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acetone. |
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C.E. (Tetryl) |
1 oz. |
1¼" x 1.35" to 1.15" |
Wrapped in waxed paper |
One centimeter | 1¼" x 1 cm | Copper tube - mixture of | ||
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TNT & Tetryl, and PETN |
III. |
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British Military explosive charges are indicated in chart form on page 76. |
IV. |
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This torpedo, 62.5" long and weighinh about 25 lbs. consists of a steel body fit-ted with an ogival hardwood head and contains a charge about 7 lbs. of ammonal with a Mk II C.E. primer fiited at the front end. Two studs are provided near the rear end of the body for assembly of the sections in series. The body is painted Service Green or Brown, with a red band, below which are located identification stencillings. Two ¼ inch buff bands enclose a 1 inch green band of which the letter "A" is stencilled to denote the Ammonal filling. |
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This torpedo is issued empty in sections 3 ft. long and 3 in. in diameter, and is made of light sheet steel. Each section is split longitudinally down the center to form a top and bottom half section. A wooden nose plug, a wooden tail plug, six junction bands, and nine junction rings are issued with each outfit of seven comp-lete sections of the torpedo. The torpedo was originally designed to be used in conjunction with 20 ft. Flexible Torpedo, described below, as its filler. But it may be filled with cartridge type explosive without any canvas lining. |
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This torpedo consists of a 20 ft. length of 2" diameter canvas hose, filled with "808", Gelignite, or Ammonal. A double length of Cordtex, passing through regulary spaced primers, runs through the explosive filled hose. The torpedo was designed as an assault demolition weapon to be used in signle lengths coiled or bundled, or stretched out and tied to other lengths. When rigidity is desired this torpedo may be placed inside of the 20 ft. Lightweight Torpedo, described above. |
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This torpedo consists of a thin steel tube, 1-5/8" diameter and issued in two lengths, 6 ft. and 10 ft. The torpedo is painted brown, with a red band, below which are painted identification stencillings. Two ¼" buff bands enclose a 1" green band on which the letter "A" is stencilled to indicate the Ammonal filler. An ogival wooden head fastened to a short metal sleeve with screws is provided with each set of four sections. A studded metal band is provided with each section by means which sections may be joined together. |