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The BL 8-inch howitzer Marks VI, VII and VIII (6, 7 and 8) were a series of British artillery siege howitzers on mobile carriages of a new design introduced in World War I. [ note 1 ] They were designed by Vickers in Britain and produced by all four British artillery manufacturers but mainly by Armstrong and one American company.
The BL 8 inch gun Mark VIII [note 1] was the main battery gun used on the Royal Navy's County-class cruisers, [note 2] in compliance with the Washington Naval Treaty of 1922. . This treaty allowed ships of not more than 10,000 tons standard displacement and with guns no larger than 8 inches (203 mm) to be excluded from total tonnage limitations on a nation's capital sh
Gauge: 3 foot 6 inches (1,067 mm) Length: 12 foot 11 inches (3,937 mm) Wheelbase: 4 foot 9 inches (1,448 mm) Weight: 6 tonnes; Boiler pressure: 120 pounds per square inch (8.3 bar) Cylinders: 6 by 6 inches (152 mm × 152 mm) Wheel diameter 30 inches (762 mm)
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 ...
The alternative Super series, denoted SnR, nR Plus or nR+, has an aspect ratio of 3∶2 (or as close as possible) and thus provides a better fit for standard 135 film (35 mm) at sizes of 8 inches or above. 5R is twice the size of a 2R print, 6R twice the size of a 4R print and S8R twice the size of 6R. 4D/6D is a newer size for most consumer ...
The first commonly available increase in tape length resulted from a reduction in backing thickness from 1.5 to 1.0 mil (38 to 25 μm) resulting in a total thickness reduction from 42 to 35 μm (1.7 to 1.4 mils), which allowed 3,600 ft (1,100 m), 1,800 ft (550 m), and 900 ft (270 m) tapes to fit on ten-and-a-half-, seven-, and five-inch reels respectively.
4.342 in × 3 + 3 ⁄ 4 in (110.3 mm × 95.3 mm) bore x stroke, 8 cylinders, each having a bore of 4.342 inch and a stroke of 3.75 inch, results in a displacement of 444.21 cubic inches (7,279.34 cc); for the Pontiac OHC 427 Hemi refers to it as a "TOHC" and lists the bore at 4.257 inch—which, with a stroke of 3.75 inch, results in a ...
The 8-inch gun M1 was a 203 mm towed heavy gun developed in the United States. At 32,584 m (35,635 yd), it had the longest range of any US Army field artillery weapon in World War II . It was also used in small numbers by the British Army .