LeEnfield

The commander aligns the roof mounted panoramic sight on a target and presses the align switch to slew the turret round until the gun is automatically positioned on the target. The gunner then takes over the engagement of the target, and presses the laser rangefinder and the fire buttons to fire the gun. As soon as the gunner has taken over the engagement of the target, the tank commander is able to locate and take range measurement of a second target using the commander's sight. The data for both targets, the first target being engaged by the gunner and the second target, are stored in the digital fire control computer. When the gun has been fired and the kill assessment on the first target completed, the commander presses the align switch which results in the turret slewing round to align the gun on the second target and automatically firing the gun. The operational procedure greatly enhances the firepower of the tank, in that the Challenger can effectively engage targets in rapid succession.
The design of Challenger 2 has given emphasis to crew safety and tank survivability. The turret is protected with second generation Chobham armour which provides increased resistance to penetration by anti-tank weapons. The tank is protected against nuclear, biological and chemical (NBC) warfare by an NBC protection system (with full overpressure filtered air) located in the turret bustle. The electronics systems are protected against nuclear electromagnetic pulse (EMP).
The movement of the turret and gun is by a solid state electric drive rather than by high pressure hydraulic drive. The electric drive removes the risk associated with rupturing of high pressure hydraulic hoses in the crew compartment. The stowage for explosives is below the turret ring which provides a less vulnerable position than in the turret bustle.
The turret and the hull designs incorporate stealth technology to minimize the radar signature.

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LeEnfield Rides again