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The 90 mm gun M1/M2/M3 was an American heavy anti-aircraft and anti-tank gun, playing a role similar to the German 8.8cm Flak 18. It had a 3.5 in (90 mm) diameter bore, and a 50 caliber barrel, giving it a length of 15 ft (4.6 m). It was capable of firing a 3.5 in × 23.6 in (90 mm × 600 mm) shell 62,474 ft (19,042 m) horizontally, or a ...
Cartridges manufactured by the Western Cartridge Company contained 20 flechettes, each 18.5 mm (0.73 in) long and weighing 7.3 gr (0.47 g); Federal Cartridge Company rounds contained 25. The flechettes were packed in a plastic cup with granulated white polyethylene to maintain alignment with the bore axis, and supported by a metal disk to ...
Ammunition for the 90 mm rifle was issued in complete fixed cartridges. [12] The term "fixed" means that the projectile and the cartridge case are crimped together. This ensures correct alignment of the projectile and the cartridge case. It also permits faster loading because the projectile and the cartridge case are loaded as one unit.
The 105mm howitzer round was not the only artillery piece provided with APERS-T. Beehive rounds were also created for recoilless anti-tank weapons: the 90 mm and 106 mm mounted on the M50 Ontos. [4] APERS-T rounds were available for 90mm gun on M48 tanks and the 152mm gun on the M551 Sheridan armored reconnaissance/airborne assault vehicle ...
This gun used a standard "fixed" cartridge with 15 lb (6.8 kg) shell, hence a single set of tables applied to all its ammunition. Range tables for US 3-inch field gun , models 1902–1905. Range table for British 3 inch (76.2 mm) Stokes Mortar, 1917
In ballistics, the elevation is the angle between the horizontal plane and the axial direction of the barrel of a gun, mortar or heavy artillery.Originally, elevation was a linear measure of how high the gunners had to physically lift the muzzle of a gun up from the gun carriage to compensate for projectile drop and hit targets at a certain distance.
The 17 pdr cartridge actually contained as much propellant charge as the cartridges of both the 90 mm and the 75 mm Gun M2/M3/M6 combined. — Preceding unsigned comment added by 95.149.173.13 13:16, 12 March 2017 (UTC) The 17 pdr had an 8 pound propellant charge per Ian Hogg or 9 pounds per other sources.
The 120 mm gun M1 was the United States Army's standard super-heavy anti-aircraft gun during World War II and the Korean War, complementing the smaller and more mobile M2 90 mm gun in service. Its maximum altitude was about 60,000 ft (18,000 m), which earned it the nickname stratosphere gun.