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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 Mk 7 Mod 4 bomb dispenser differs from the Mk 7 Mod 3 by modifying the dispenser and giving interface capabilities with a wider range of military aircraft. The Mk 7 Mod 6 bomb dispenser is the same as the Mk 7 Mod 3 except that the outside of the Mod 6 cargo section is coated with a thermal protective coating and has an additional yellow ...
The Mark 7 was fitted with retractable stabilizer fins so it could be carried under fighter-bomber aircraft. The Mark 7 warhead ( W7 ) also formed the basis of the 30.5 inches (775 mm) BOAR rocket , the Mark 90 Betty nuclear depth charge , MGR-1 Honest John rocket, MGM-5 Corporal ballistic missile , and Nike Ajax surface-to-air missile.
Modern U.S. Navy aircraft carriers have the Mark 7 Mod 3 arresting gear installed, which have the capability of recovering a 50,000-pound (23 t) aircraft at an engaging speed of 130 knots (240 km/h; 150 mph) in a distance of 344 feet (105 m) in two seconds.
The resulting weapon used a smaller version of the GAU-8/A, designated the GAU-13/A, with only four barrels. Podded, the system weights 1,900 lb (860 kg) loaded with 353 rounds of 30 mm ammunition in two helical layers surrounding the gun (for reduction of overall size). The pod is completely self-contained with a rate of fire of 3,000 rpm. [19]
Mark 63 Gun Fire Control System (Mk.63 GFCS) is a gun fire-control system made up of AN/SPG-34 radar tracker and the Mark 29 gun sight. [ 1 ] [ 2 ] They were usually equipped for the control of twin QF 4-inch naval gun Mk XVI and Mk.33 twin 3"/50 cal guns .
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Two Mark 7 guns (Watervliet #774 and #Unk.) on Midway Island, Central Pacific Ocean One Mark 7 gun ( Naval Gun Factory (NGF) #415L) at the NROTC facility, Tulane University , New Orleans, Louisiana One Mark 15 gun (NGF #736L) at the U.S. Navy Museum , Washington Navy Yard , Washington, DC (previously on USS Idaho (BB-42) )