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Often propane bombs are crudely made, involving wiring a device into the propane tank(s) set to a timer or remote detonation. The expanding gas of the ignited propane bursts the shell of the tank and causes the explosion, similar to the fundamentals of a pressure cooker bomb or a pipe bomb.
On one occasion digging in and actually blowing a set of Fougasse—these were 50-imperial-gallon (230 L; 60 US gal) oil drums filled with petrol and oil, buried in the side of a defile with a small charge of explosives behind or underneath. The idea was that when a column of enemy tanks [illegible] the spot the Fougasse were blown.
Spiking a gun was a method of temporarily disabling a cannon by hammering a barbed steel spike into the touch hole; this could be removed only with great difficulty. If a special spike was unavailable, spiking could be done by driving a bayonet into the touch-hole and breaking it off, to leave the blade's tip embedded. [2]
A cannon is any large tubular firearm designed to fire a heavy projectile over a long distance. They were first used in Europe and China, and were the archetypical form of artillery. Round shot and grapeshot were the early projectiles used in cannon. 18th century cannon projectiles Three different cannon projectiles
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Cannon recovered from the sea are often extensively damaged from exposure to salt water; electrolytic reduction treatment is required to forestall corrosion. [218] The cannon is then washed in deionized water to remove the electrolyte, and is treated in tannic acid, which prevents further rust and gives the metal a bluish-black colour.
The 3.7 cm Flak 18/36/37 was a series of anti-aircraft guns produced by Nazi Germany that saw widespread service in the Second World War.The cannon was fully automatic and effective against aircraft flying at altitudes up to 4,200 m. [4]
The cannon is a single-barrel, high-performance, breech-cylinder gun operated by a fully automatic, electrically fired, gas-operated system at a selective rate of 1000 or 1700 rounds per minute(+/− 100 rpm). [2] The Mauser BK 27 utilizes pyrotechnic cocking charges to cycle the action.