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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. The weapon used in flight insertion for safing and later versions of ...
Mod 11 was a Mod 7 that had the chamber lengthened, adding 235 cu in (3,851 cm 3), and a 3½° breech band seating slope and used Breech Mechanism Mark 12. Mod 12 used a Mod 10 and lengthened the chamber and added a 3½° breech band seating slope with Mod 13 being similar but of a Mod 8, Mod 14 used a Mod 9, Mod 15 used a Mod 7, Mod 16 used a ...
The Mark 7 was a major step in the evolution of the modern torpedo. 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]
Defective, inadequately tested Mark 6 Mod 1 exploder used early in the war. [3] In September 1943, it was replaced with the Mark 6 Mod 5. [4] Early torpedoes used contact exploders. A typical exploder had a firing pin that stuck out from the warhead and was restrained by a transverse shear pin.
Also pressed into service during the conflict was the last model of the Bliss-Leavitt, the Mark 9, and the first US torpedoes to be designed totally within the Navy without industry collaboration, [10] the Mk 11 and Mk 12). [11] [12] US 21-inch torpedo (probably Bliss-Leavitt Mark 7 or Mark 8) being loaded onto the USS Oklahoma, c. 1919
The Mark 15 nuclear bomb, or Mk-15, was a 1950s American thermonuclear bomb, the first relatively lightweight (7,600 lb (3,400 kg)) thermonuclear bomb created by the United States. A total of 1,200 Mark 15 bombs were produced from 1955 to 1957. There were three production variants: Mod 1, Mod 2, and Mod 3. The design was in service from 1955 to ...
The Mark 10 torpedo was a torpedo put into use by the United States in 1915. It was derived from the Mark 9 aircraft torpedo converted to submarine use. [3] It was used as the primary torpedo in the R- and S-class submarines. (Seven of the R-class, R-21 through R-27, were equipped with 18-inch torpedo tubes, but were decommissioned in 1924 and ...
The 14"/50 caliber gun was designed in 1916 and entered service in 1918 on the New Mexico -class battleships. The guns were capable of firing a 1,402 pounds (636 kg) armor-piercing (AP) projectile at an angle of 15 degrees, to a range of 24,000 yards (21,946 m). Each gun weighed approximately 179,614 pounds (81,472 kg), including the breech ...