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Shell 105 mm FD Marker L37A1/A2 and L38A1/A2
Регіон
India
Категорія
Боєприпаси, ракети та високоточне озброєння
The Shell 105 mm FD Marker L37A1/A2 and L38A1/A2 is intended for use as target markers, these 105 mm Marker projectiles are identical apart from their fillings. They are also matched ballistically to the 105 mm L31 HE projectiles. The shell has a steel body with a single driving band. The fuze cavity in the nose leads into a cavity with a distance-piece at its forward end. The distance-piece has a paper tube liner containing the RDX/WX8 exploder and two paper discs. Behind the distance-piece and separated from it
by a millboard washer is the main filling, separated from the baseplate by more millboard discs. There are two steel baseplates, of different diameters and with external screw threads, separated by a copper disc. The main filling is in two parts. The forward (main) part consists of 1.19 kg of a PETN/wax dye smoke composition in the form of prepressed pellets. These are located forward of the driving band. The lower part consists of a 269.3 g pellet of wax/dye smoke composition. On the 105 mm Marker L37A1 and L38A1 the threads on the inner and outer baseplates lack a coating of a rubber sealing compound which is applied to the same threads on the L37A2 and L38A2. On the 105 mm Marker L37A1 and L37A2 the front (main) filling is Composition PN 740 which produces red smoke. On the L38A1 and L38A2 the front (main) filling is Composition PN 641 M or PN 867 producing orange smoke. In both cases the explosive element is PETN. The Charge system is assembled in brass cartridge cases, Normal (L35A1/A2) with five increments and Super (L36A2/A3), a unitary charge. Ignition is by an electric primer ( L10A1 ) fitted in the cartridge base. Range performance is as follows: Charge 1 (L35A1/A2) - 2,500 to 5,700 m Charge 2 (L35A1/A2) - 2,700 to 7,200 m Charge 3 (L35A1/A2) - 5,900 to 9,500 m Charge 4 (L35A1/A2) - 7,900 to 12,200 m Charge 5 (L35A1/A2) - 15,300 m Super Charge (L36A2/A3) - 17,200 m. Minimum ranges with Charge 1 and 2 require L1A1 spoiler rings to be fitted to the nose of the shell. Also available is the Cartridge 105 mm FD Training L45A1. See separate entry for details.