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Russian 12 inch 40 caliber naval gun Russian Empire: 1896 - World War I 305 mm (12.0 in) Obukhovskii 12"/52 Pattern 1907 gun Russian Empire: World War I - Cold War 305 mm (12.0 in) 305 mm /46 Model 1909 Italy: World War I - World War II 305 mm (12.0 in) 30.5 cm SK L/50 gun German Empire: World War I 305 mm (12.0 in) Škoda 30.5 cm /45 K10
The 40.6 cm SK C/34, [Note 1] sometimes known as the Adolfkanone (Adolf gun), was a German naval gun, designed in 1934 by Krupp and originally intended for the early H-class battleships. Description [ edit ]
While modern firearms are generally referred to by the name of the cartridge the gun is chambered for, they are still categorized together based on bore diameter. [citation needed] For example, a firearm might be described as a "30 caliber rifle", which could accommodate any of a wide range of cartridges using a roughly 0.30 inches (7.6 mm) projectile; or as a "22 rimfire", referring to any ...
The United States adopted the conversion factor 1 metre = 39.37 inches by an act in 1866. [30] In 1893, Mendenhall ordered the physical realization of the inch to be based on the international prototype metres numbers 21 and 27, which had been received from the CGPM, together with the previously adopted conversion factor. [31]
The 30-inch (76.2 cm) draw length was used because that is the length allowed by the arrows commonly found on the Mary Rose. A modern longbow's draw is typically 60 lb f (270 N) or less, and by modern convention measured at 28 inches (71.1 cm).
The centimetre (SI symbol: cm) is a unit of length in the metric system equal to 10 −2 metres ( 1 / 100 m = 0.01 m). To help compare different orders of magnitude, this section lists lengths between 10 −2 m and 10 −1 m (1 cm and 1 dm). 1 cm – 10 millimeters; 1 cm – 0.39 inches; 1 cm – edge of a square of area 1 cm 2
2.0 inches (5.1 cm) Indiana: 12.0 inches (30 cm) 0.5 inches (1.3 cm) — Kansas: 20.5 inches (52 cm) 0.66 inches (1.7 cm) — Kentucky: 9.0 inches (23 cm) 0.75 inches (1.9 cm) — Maryland: 8.7 inches (22 cm) — — Missouri: 13.0 inches (33 cm) 0.63 inches (1.6 cm) 4.0 inches (10 cm) Nebraska: 12.0 inches (30 cm) — — New Jersey: 5.0 ...
Rheinmetall then started an adaptation of the C/30 for Army use, producing the 2 cm Flak 30. Generally similar to the C/30, the main areas of development were the mount, which was fairly compact. Set-up could be accomplished by dropping the gun off its two-wheeled trailer, "Sonderanhänger 51" (trailer 51) and levelling the gun using hand cranks.