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The M117 can be configured with a conical low-drag tail for medium and high altitude deliveries or a high-drag tail fin for low-altitude drops, delaying the bombs hitting their targets ensuring bombers are out of the blast zone before detonation. [6] The M117 was the basis for the BOLT-117, the world's first laser-guided bomb. [7]
The M795 is a 155 mm high-fragmentation, steel (HF1)-body projectile, filled with 10.8 kilograms (23.8 lb) of TNT.It weighs approximately 47 kilograms (103 lb). The high-fragmentation steel body is encircled by a gilding metal rotating band, making it compatible with 3W through 8S (M3A1 through M203A1) zone propelling charges across all current 155 mm howitzers.
Researchers in Arizona say they have discovered the oldest gun in the U.S., a cannon used during the first European expedition across the Southwest.
A cannon fragment dating from the Revolutionary War was recently discovered hiding in plain sight not far from where it was originally forged nearly 250 years ago.
Experimentation showed that a temperature of 600°F reduced fuel consumption to a third of that with cold blast, and enabled raw coal to be used instead of coke, with a further cost saving. It also enabled the exploitation of black band ironstone , the use of which had previously proved unprofitable.
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In the past 10 years his research has focused on the demilitarization of explosive ordnance. He is the holder of several patents, including US Patent No. 4,754,705 for a blast control plug. "The device is designed to help keep explosive energy in blastholes when they detonate and thus more efficiently break rock and reduce environmental ...