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Dry chemical powder is used on all classes of fires. Dry chemical powder puts out the fire by coating the burning material with a thin layer of dust, thereby separating the fuel from the oxygen in the air. The powder also works to interrupt the chemical reaction of fire, so these extinguishers are extremely effective at putting out the fire.
A fire extinguisher is a handheld active fire protection device usually filled with a dry ... C for 1301 and smaller 1211 fire extinguishers (2.3 kg; under 9 lbs) and ...
EN 3-9: Portable fire extinguishers. Additional requirements to EN 3-7 for pressure resistance of CO 2 extinguishers. EN 3-10: Portable fire extinguishers. Provisions for evaluating the conformity of a portable fire extinguisher to EN 3-7. EN 3-1, EN 3-2, EN 3-4 and EN 3-5 have been withdrawn and were replaced by EN 3-7, EN 3-8 and EN 3-9. [2 ...
The 5-inch (127 mm)/54-caliber (Mk 45) lightweight gun is a U.S. naval artillery gun mount consisting of a 5 in (127 mm) L54 Mark 19 gun on the Mark 45 mount. [1] It was designed and built by United Defense, a company later acquired by BAE Systems Land & Armaments, which continued manufacture.
This QF gun was introduced to provide a higher rate of fire than the BL 4 inch Mk VII. It first appeared in 1914 as secondary armament on Arethusa-class cruisers, was soon adapted to a high-angle anti-aircraft role. It was typically used on cruisers and heavier ships, although V and W-class destroyers of 1917 also mounted the gun.
The 7.5 cm KwK 40 (7.5 cm Kampfwagenkanone [a] 40) was a German 75 mm Second World War era vehicle-mounted gun, used as the primary armament of the German Panzer IV (F2 model onwards) medium tank and the Sturmgeschütz III (F model onwards) and Sturmgeschütz IV assault guns which were used as tank destroyers.
A new type of 4.5 inch gun with a longer 55-calibre barrel, it was designed in the 1960s for the Royal Navy's new classes of frigates and destroyers.The weapon, built by Vickers Ltd Armament Division, was developed by the Royal Armament Research and Development Establishment using the Ordnance, QF 105 mm L13 of the Abbot self-propelled gun as a starting point (it used electrical primers).
Separate loading QF; WWI : AP, Shrapnel, Common Lyddite, Common pointed, HE 45 pounds (20.41 kg) [note 1] Calibre: 4.724 inches (120 mm) Breech: Single motion interrupted screw: Recoil: 12 inches (305 mm) (carriage Mk I) Elevation-6° – 20° (Mk I field carriage) [2] Traverse: 0° Rate of fire: 5–6 rounds per minute: Muzzle velocity
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