Pansarvarn RBS 56 BILL
The Bofors BILL 2 multi-mission guided weapon is a further development of the highly successful BILL system. In BILL 2 Bofors has refined the Overfly Top-attack technology (OTA), already proven to be the only effective tank killing method for the future, enhanced the capability with a dual-warhead, and created new modes for different target types such as non-armoured vehicles and soft targets.
In the Basic Mode the missile flies 1.05 meters above the Line-Of-Sight and attacks the target from above, avoiding the heavily protected frontal arc. And to increase combat flexibility the gunner has two more firing modes at his command. The warhead arrangement, with its vertically striking shaped charges, compensated for dynamic effects, have demonstrated BILL 2's very high Single Shot Kill Probability (SSKP). Any MBT, old or new, whether equipped with the most advanced add-on/integrated protection or not, will be effectively and immediately put out-of-action. The effective combat range for both static and moving targets is 150-2,200 meters and the flight time at maximum range is 13 seconds. BILL 2 has a SACLOS guidance system and the missile is wire-guided. The guidance system contains a flight simulator with a computerised model in the sight, simulating the whole target engagement. A parallel engagement simulation in real time is created via the continuous comparisons made between simulation and reality, using processed in-put signals from the missile tracker and the angle indicator. The laser beacon in the aft of the missile transmits individually coded laser signals back to the sight (missile tracker), making the system immune to jamming. The missile system incorporates both an interactive, dual-purpose sensor system and an impact fuze.
The Warhead Initiation Function consists of: Optical sensor; Magnetic sensor; Impact fuze; and Proximity fuze algorithms. The optical sensor is, in effect, a range finder, which measures the distance from the missile to the surface below, profiling it simultaneously. And as the transmitting signal is coded, the optical sensor is in-possible to jam. The magnetic sensor measures the characteristic signatures from specifically defined metallic objects and discriminates whether they are relevant or non-relevant. The inertial impact fuze is used for direct attack.
The gunner can select any of the three firing modes before missile launch: Basic Mode; Non-Armoured Target Mode; and Soft Target Mode. In the basic mode all sensors are activated and the missile flies with an elevated flight path with warhead initiation algorithms optimised for the BILL 2 defined threat. In the non-armoured target mode all sensors are disconnected and the missile flies on the Line-Of-Sight using the Impact Fuze function. In the Soft Target Mode the Magnetic Sensor is disconnected and only the Optical Sensor activated and the missile flies with an elevated flight path with special warhead initiation algorithms.
BILL Night Sight is an add-on thermal imaging night sight, primarily for use with the BILL portable medium-range anti-tank missile system, made by Bofors Missiles and intended for use in darkness and under poor visibility situations. The Bill Night Sight is mounted on top of a day-sight with the thermal picture mirrored into the front lens of the day-sight.
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