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The 25-Pounder was a British combined high-velocity gun and howitzer, of the Second World War that evolved from the QF 4.5 inch Howitzer and QF 18pdr field gun. The 25-Pounder was notable for being mounted upon a 360 degree traverse wheel giving improved flexibility in the deserts of the North African campaign early in the Second World War. The 25-Pounder claimed an effective range of 17000 yards as an anti-tank gun and 10000 yards as a howitzer, firing at a higher elevation.
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The breech is the portion of the barrel with the chamber into which a cartridge or projectile is loaded, and the mechanism used to close the rear end of the gun. The breech withstands the rearward pressure of the propellant gases. In quick firing (QF) guns, the breech supports and extracts the cartridge case.
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The Matilda Mk 2 was the only British tank to see action right through the Second World War from start to finish. It was an infantry tank weighing 26.9 tonnes with armour up to 78 mm thick and armed with a QF 2pdr Mk VII (40 mm) main gun. It had a top speed of 15 mph.
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The QF 13pdr is a British artillery weapon developed in 1904 following lessons learned during the Boer War and adopted by the Royal Horse Artillery as a cavalry support weapon. The QF 13pdr was a 3 inch calibre piece firing a 12.5 lb shrapnel shell to a range of 5900 yards. Today the Ordnance QF 13pdr is used for ceremonial and display purposes.
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The QF 15pdr was the British designation for 3 inch calibre artillery guns made by Ehrhardt of Germany, and used during the Boer War and were in service until being withdrawn in 1916. The QF 15pdr fired a 14 lb shrapnel shell to a range of 6400 yards with a muzzle velocity of 511 meters-per-second.
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The QF 17pdr Gun was a British anti-tank gun of the Second World War first issued in 1942 to defend against the German Tiger I tanks in North Africa. The
QF 17pdr Gun fired a 76 mm calibre shell at a muzzle velocity of between 884 and 1203 meters-per-second depending upon ammunition and had a maximum range of 10000 yards. The QF 17pdr Gun could penetrate 109 mm of armour at 1000 metres with standard armour-piercing ammunition and 231 mm using armour-piercing discarding sabot ammunition.
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The QF 18pdr was a British field artillery gun developed in 1904, and which by 1914 was the standard field gun of the British and Commonwealth armies. The
QF 18pdr was a 3.3 inch calibre weapon firing a 18.5 lb shrapnel shell to a range of 8700 metres with a muzzle velocity of 492 meters-per-second.
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The QF 2pdr Mk VII was a British anti-tank gun developed during the 1930s and used during the early part of the Second World War both as a towed infantry anti-tank gun and as a turret-mounted gun in tanks. The fired a 40 mm calibre armour piercing shell to an effective range of 1000 metres at a muzzle velocity of 808 meters-per-second and could penetrate 42 mm of armour at 1000 metres.
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The QF 3 inch 20 cwt was the first British custom-made anti-aircraft gun and was introduced into service in 1914. The QF 3 inch 20 cwt fired a 16.5 lb high-explosive shell to an effective ceiling of 4785 metres with a muzzle velocity of 610 meters-per-second.
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The QF 4.5 inch Gun was a British heavy anti-aircraft gun of the Second World War developed from the Royal Navy 4.5 inch gun, and used around naval installations and large cities for defence. The QF 4.5 inch Gun fired a 24.69 kg high-explosive shell to an effective ceiling of 10521 metres with a muzzle velocity of 732 meters-per-second.
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The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert
©1993 - 2009 The Probert Encyclopaedia
Southampton, United Kingdom
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