Barrel Insert System (BIS)The 25 mm barrel insert system (BIS) for the Leopard 2A4/5 with the L44 weapon supports live firing training for tank crews up to a distance of 1,500 meters. The BIS is designed for permanent deployment at the firing grounds of the armored troops. As a rough estimation, the price for a sub-caliber round is approximately 5% of the cost of a full caliber training round. The Barrel Insert System comprises the following: an insert barrel, a main gun shield, an electro - hydraulic breech opening device (BOD) to maneuver the breech block of the main gun manually or automatically, support and servicing equipment specific to the BIS, and all relevant documentation. Ammunition cost, safety areas, main gun wears and environmental loads are minor in comparison to similar gunnery exercises with 120 mm caliber combat or training ammunition. Firing procedures and actions of the gunner and commander are identical with their firing procedures and actions as for 120 mm caliber combat ammunition. Loading procedures and actions of the loader are identical to loading procedures and actions with 120 mm caliber combat or training ammunition with the exception of size and weight of the rounds. The BIS is designed for use in basic training, repetitive training and refresher training. It is possible for the MBT crew to mount and dismount the BIS within 30 minutes. |