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| BRITISH EXPLOSIVE ORDNANCE |
| Part 6 - Chapter 2 |
| Anti-Tank Mines and Fuzes |
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A./T. Mine G.S. Mk II (Obsolete) |
| Data |
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Diameter |
7½ in. |
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Height |
3¼ in. |
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Total weight |
8½ lb. |
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Explosive weight |
4 lb. |
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Explosive |
TNT or Baratol |
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Material |
Steel |
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Color |
Sides and top dark green; bottom yellow, with cross of red and green |
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Fuzing |
A./T. Contact Mine Fuze No. 1 Mk II |
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Pressure required |
350 lb. (approx.) |
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Description: The Mine G.S. Mk II has three main components: loaded body, cover, and fuze. The mine cover fits over the body and is supported by a leaf spring. Pins on the sides of the mine body engages bayonet sockets in the cover. The cover of this mine must never be removed after the mine is armed. Words to that effect are stamped on the cover of the mine. |
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The mine body is cylindrical in shape. Passing through the center of the mine is a ca-vity for the insertion of the mine fuze. During ordinary shipping and storage, this cavity is closed by a shipping plug. A booster charge in a ring-shaped container is placed in this central cavity. The remainder of the mine is filled with the explosive main charge. The mine is fired when the weight of a vehicle overcomes the leaf spring under the cover and allows the cover to force down the top of the fuze. |
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The A.T. Contact Mine Fuze No. 1 Mk II operates on the ball-release principle, and consists of a cylindrical body containing a striker mechanism, a brass safety sleeve, a percussion cap, and a detonator. Over the top end of this fuze is crimped a thin-walled brass sleeve. Four prongs on a brass safety sleeve retain a plunger in which are located a striker and striker spring. The striker is retained by two locking balls, which are held engaged in a groove in the striker by the plunger. A pressure head is fitted to the top of the plunger. |
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Pressure on the cover of the mine crushes the thin-walled brass sleeve and forces the pressure head and plunger downward. The four prongs on the brass safety sleeve release their grip, and the striker spring is compressed. The locking balls are forced outward into a recess in the plunger, and the striker fires the precussion cap which explodes the de-tonator. |
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Use: This mine is used as a defense against armored cars, tanks, or other vehicles. The mine will break tracks of light and medium tanks, and disable other vehicles. |
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Assembly and Arming: Place the mine on its edge and unscrew the shipping plug from the center of the bottom of the mine body. Remove the fuze from its cardboard container and screw it into the mine finger-tight. Place the mine in its hole cover side up. |
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Neutralization: To neutralize the mine, reverse the arming procedure outlined above. |
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Remark: If mine is to be re-used, inspect the fuze to see that the thin-walled brass sleeve has not been crushed. |
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| Figure 253 – A./T. Mine G.S. Mk II |
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