abstract
| - In the early 1960s both the Royal Marines, then largely based on commando carriers, and the British Army required a vehicle that could be carried by air. They had taken delivery of the Westland Wessex helicopter, which could carry an 1140 kg (2500 lb) load slung beneath. The smallest Land Rover available at the time was a Series IIA 88 inch (2235 mm) wheelbase, which was too heavy. A new modification to the basic Series IIA was devised by making many body components easily detachable and removing many non-essential items. The result was the Land Rover Half-Ton, known widely as the Lightweight or Airportable. In practice, to reduce weight sufficiently for the helicopters of the day to lift them in combat conditions, the tilt (hood) and sticks, the upper parts of the body, the doors and windscreen were removed, to be refitted later. The most significant change, however, was a reduction in width by 4 inch (100 mm), by redesigning the standard Series IIA axles and fitting shorter half-shafts, which meant it would fit on a standard pallet. Complete, the Lightweight IIA weighed lb (kg), over the specified weight and heavier in fact than a 'standard' Land Rover. The term Lightweight was, therefore, confusing. However, with the removable body panels taken-off it was below the limit. Since improvements to the helicopters meant more lift was available, the MoD accepted it for use. The first production models were completed on 11 November 1968, and production continued until 1984.
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