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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]
The 12-inch (305 mm)/50 caliber Mark 7 naval gun was only a slight improvement over the preceding American naval gun, the 12"/45 caliber Mark 5 gun.As such, it was a very similar weapon, having been lengthened by five calibers to allow for improved muzzle velocity, range, and penetrating power.
For example, the Ferrari FXX owned by Michael Schumacher (1:10.7) was taken off the board because it both failed to meet road legal standards and used slick tyres, and the Caparo T1 (1:10.6) was removed because its front wing was too low to drive over a Speed bump.
The Mark 7 was a major step in the evolution of the modern torpedo. [1] This innovative design featured the use of steam , generated from water sprayed into the combustion pot along with the fuel . The resulting mixture dramatically boosted the efficiency of the torpedo, leading to markedly improved performance. [ 3 ]
BL 8 inch Howitzer Mk 6 - 8, a Vickers gun from World War I; the Mk VII was introduced in 1916; Mark VII tank, a British tank design from World War I; BL 14 inch / 45 mk VII naval gun, Royal Navy gun from the 1930s.303 round Mk VII (1910): standard British Empire rifle and machine-gun cartridge in World Wars I and II.
The 16-inch gun was a built-up gun constructed in a length of 45 calibers. The Mark 1 had an A tube, jacket, liner, and seven hoops , four locking rings and a screw-box liner. When the gun was designed in August 1913 it was referred to as the "Type Gun (45 Cal.)" as an effort to conceal the gun's true size of 16 inches.
The new 14-inch Armour Piercing (AP) 1,590-pound/ 721 kg shell had, relative to its size, superior ballistic performance and armour-penetration compared to previous British shells, due to improvements in design and material which had taken place since World War I. [6] The shell also carried a proportionally large bursting charge of 39.8 lb (18. ...
Diagram of implosion system like that used in the Mk7. The Mark 7 was a variable-yield fission weapon that used a levitated pit and an implosion design with 92 high-explosive lenses. The weapon had multiple yields of 8, 19, 22, 30, 31, and 61 kt by using various weapon pits. [4] The weapon had airburst and contact fuzing modes.