51400 T and differs from the Mark 1 mainly in having a turret with a well-shaped cast front welded to a fabricated armour plate body.

In 1977,[5] Vickers acquired a £100 million trade deal to produce 76 Mk.

In 1981, after five years of negotiations, Vickers signed a £115 million contract to provide 108 Mk.

In 2015, several Mk.3N Eagles of the Nigerian Army were involved in the combat in Yola as part of the Boko Haram insurgency.

Some of them were captured by Boko Haram insurgents and later re-captured by the Nigerian Army in Maiduguri.

A laser rangefinder of the type being fitted to the Chieftain was also proposed since the range of the L7 105 mm gun was well beyond that of the 12.7 mm ranging machine gun fitted.

The collimator projects an illuminated ballistic graticule image into the field of view of the commander's sight when the cupola and the turret are lined up.

Maximum protection is over the frontal arc of 60° on the welded hull and 45° on the cast turret.

Protection against mines is by means of additional floor patch plates.