20X110MM CARTRIDGE FOR 55 MM
The 55mm shell is designed for maximum destructive effect against lightly armored vehicles, aircraft, and fortified positions. This ammunition features a copper casing, a precision-shaped projectile with a yellow body and metal tip, and produces a fragmentation and incendiary effect upon detonation. A red band on some variants indicates enhanced incendiary capability. It is trackable and complies with military standards. Designed for use in automatic cannons, this shell delivers superior firepower, combining fragmentation and incendiary effect to effectively neutralize targets.
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20X110MM CARTRIDGE FOR 55 MM |
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DESCRIPTION |
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The 20 mm x 110 ammunition consists of a brass cartridge case with an ignition primer, a propellant charge, and a high-explosive tracer projectile. The projectile is loaded with explosives and tracer material and is equipped with a point detonator and a mechanical self-destruct mechanism. Alternatively, the projectile may be loaded with incendiary explosives and tracer material. |
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HE-T (High Explosive-Tracer): Indicated by the yellow body with a green band. This round contains an explosive filler and a tracer element that allows the shooter to see the bullet's flight path. |
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HEI-T (High Explosive Incendiary-Tracer): Indicated by the red band above the yellow body. This variant adds an incendiary component for increased fire-starting capability upon impact. |
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Typical Usage |
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Aircraft Armament: |
Famous for arming fighters like the Spitfire, Hurricane, P-38 Lightning, and Bristol Beau fighter. |
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Anti-Aircraft: |
Used in ground-based mounts like the M55 triple-mounted AA gun and the naval Oerlikon (though the cases differ slightly). |
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Modern Service: |
Though largely replaced by the 20x102mm Vulcan round in modern aircraft, this 20x110mm caliber remains in use for various light anti-aircraft and infantry fighting vehicle (IFV) cannons. |
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TECHNICAL INFORMATION |
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Caliber |
20 mm |
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Muzzle Velocity |
850 ± 10 m/s |
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Maximum pressure of powder particles (MPa) |
304.1 MPa |
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Fuze arming distance |
150 m |
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Fuze self-destruction time |
4.5 to 8 s |
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Tracer burning time |
min. 3.2 s |
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Round mass |
261 ± 6 g |
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Projectile mass |
135 ± 2 g |
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Operating temperature |
-30°C to +50°C |
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