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The lightweight 16-in/50 Mark 7 was designed to resolve this conflict. These guns were 50 calibers long, 50 times their 16-inch (406 mm) bore diameter with barrels 66.7 ft (20.3 m) long, from chamber to muzzle. Each gun weighed about 239,000 lb (108 t) without the breech, and 267,900 lb (121.5 t) with the breech. [1]
Under the Harappan linear measures, Indus cities during the Bronze Age used a foot of 13.2 inches (335 mm) and a cubit of 20.8 inches (528 mm). [11] The Egyptian equivalent of the foot—a measure of four palms or 16 digits—was known as the djeser and has been reconstructed as about 30 cm (11.8 in).
A casemated 16-inch gun. Almost all batteries were casemated by 1943. These built-up guns were 66 feet 8 inches (20.32 m) long—50 times their 16-inch (406 mm) bore, or 50 calibers from breechface to muzzle. With a full powder charge of 700 pounds (320 kg), the guns were capable of firing a 2,110-pound (960 kg) Mark 3 armor-piercing shell with ...
The inch (symbol: in or ″) is a unit of length in the British Imperial and the United States customary systems of measurement. It is equal to 1 36 yard or 1 12 of a foot. Derived from the Roman uncia ("twelfth"), the word inch is also sometimes used to translate similar units in other measurement systems, usually understood as ...
The 16 inch gun M1919 (406 mm) was a large coastal artillery piece installed to defend the United States' major seaports between 1920 and 1946. It was operated by the United States Army Coast Artillery Corps. Only a small number were produced and only seven were mounted; in 1922 and 1940 the US Navy surplussed a number of their own 16-inch/50 ...
Tape measure with 16 and 19.2 inch marks Most tapes sold in the United States are inches - and feet -based. Some tapes have additional marks in the shape of small black diamonds, appearing every 19.2 inches (488 mm), used to mark out equal spacing for joists (five joists or trusses per US standard 8-foot (2,438 mm) length of building material).
A 16-inch gun of 50 calibers (16" L/50) has a barrel length of 50 × 16 = 800 inches (66 ft 8 in). Both 14-in and 16-in navy guns were common in World War II. The British Royal Navy insisted on 50-cal guns on ships as it would allow 1,900 to 2,700 lb (860 to 1,220 kg) shells to travel at an initial velocity of up to 1,800 mph (2,897 km/h) to a ...
35,000 yards (32,000 m) at 32° elevation. Maximum firing range. 39,780 yards (36,375 m) The BL 16-inch Mark I was a British naval gun introduced in the 1920s and used on the two Nelson -class battleships. A breech-loading gun, the barrel was 45 calibres long ("/45" in shorthand) meaning 45 times the 16-inch (406 mm) bore – 60 ft (18 m) long.