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Mauser 27 mm ammunition
Регіон
Norway
United Kingdom
Italy
Категорія
Боєприпаси, ракети та високоточне озброєння
The Mauser 27 mm ammunition is the types of full calibre 27 × 145 mm ammunition fired from the Mauser 27 mm BK revolver aircraft cannon can be put into three main categories: air-to-air combat; air-to-ground combat; and training ammunition. To these can be added the Nammo Raufoss MP rounds, the APFSDS anti-missile round developed for the Drakon CIWS, the FAPDS for the MGL 27, and the proposed US JSF cannon. The cartridge case used with all rounds is of lacquered steel. It has an electrical current dependent primer
in the base and contains approximately 85 g of triple base multiperforated propellant. Rounds are delivered to the revolving feed magazine on the gun in belts connected by DM 80 steel cartridge belt links. On the EF 2000 rounds are delivered to the feed mechanism linklessly. Full calibre ammunition There are three types of Mauser 27 mm full calibre HE ammunition: HE DM 21; HE DM 31 ; and the self-destruct HE-SD DM 11. They are all designed for operations against aircraft in air-to-air combat. All have an electro-magnetic nose fuze which functions even at extremely flat impact angles. A delayed action in the fuze ensures good fragmentation after the projectile has entered the target. The TP-FRAN projectile body consists of an aluminium alloy body with shear lines and is filled with iron powder pellets. On impact at angles between 0 and 80º NATO no effective fragments will ricochet from the target, be it water, sand, wood, concrete or steel. This substantially reduces the ricochet risk against aircraft during practice firings. A non-ricochet TPFP-T round, developed in conjunction with Schweizerische Unternehmungun für Waffensystem, is used by German Luftwaffe at the Tornado training unit based at Holloman Air Force Base, New Mexico. Recocking cartridge The DM 72 is a recocking cartridge for the BK 27 gun system, intended to recock the gun in the event of a misfire. Sub-calibre ammunition An APFSDS round has been released for service with the Mauser Drakon CIWS. It consists of a long-rod tungsten alloy penetrator with high strength mechanical properties. The fin-stabilised penetrator is accelerated by a three-segment aluminium sabot instead of a slipping drive band. It has a muzzle velocity of 1,100 m/s and can destroy a sea-skimming missile with a single hit. This round may also be used with the MGL 27 light naval gun system.