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The introduction of this new design did not however stop continued use and production of the 13.2×99mm Hotchkiss "Long" cartridge by countries whom had already adopted it and in 1939 the cartridge saw new interest on the export market due to the newly developed 13.2 mm FN Browning aircraft machine gun, which was offered in both 12.7 × 99 mm ...
The 13.2 × 92 mm SR, also known as Mauser 13.2 mm TuF (German: Tank und Flieger; literally "tank and aircraft", historical military designation), is a semi-rimmed rifle and machine gun cartridge developed by the German Empire for anti-tank and anti-aircraft use which was introduced during World War I.
All measurements are in mm (in). 13 mm (.5118 in) and over. Name Date Bullet diameter Case length Rim Base Shoulder Neck Cartridge length 13×64mm [1] 12.91: 64: 17.2:
From 1.0 through 2.95 mm, sizes are defined as follows, where N is an integer from 10 through 29: N · 0.1 mm; N · 0.1 + 0.05 mm; From 3.0 through 13.9 mm, sizes are defined as follows, where N is an integer from 30 through 139: N · 0.1 mm; From 14.0 through 25.0 mm, sizes are defined as follows, where M is an integer from 14 through 25: M ...
The azimuth is the angle formed between a reference direction (in this example north) and a line from the observer to a point of interest projected on the same plane as the reference direction orthogonal to the zenith.
The rifling was the Woolwich pattern of a relatively small number of broad, rounded shallow grooves : there were 6 grooves, increasing from 0 to 1 turn in 45 calibres (i.e. 405 in (1,030 cm)).
A 25-metric-tonne rail-mounted gantry crane would then be used to assemble all seven portions of the Gamma-Gerät. Its usual rate of fire was one shell every seven minutes and eight shells in an hour. The fastest recorded rates of fire were 19 shells an hour for a single Gamma-Gerät and 30 shells an hour for a two-gun battery. [14]
The litre was also used in several subsequent versions of the metric system and is accepted for use with the SI, [3] although not an SI unit—the SI unit of volume is the cubic metre (m 3). The spelling used by the International Bureau of Weights and Measures is "litre", [ 3 ] a spelling which is shared by most English-speaking countries.