engines to all its vehicles (even though most were not actually built by R-R). A batch of series-I Land Rovers were fitted with Rolls-Royce B40 four-cylinder engine, which required modification to an wheelbase). However, the engine was too heavy and slow-revving, which stunted performance and produced torque that the Rover gearbox could only just cope with. Rover convinced the MOD that, considering the quantities of Land Rovers they were considering ordering, that the standard 1.6-litre engine would suffice. The MOD started ordering Land Rovers in batches from late 1949. The initial batches were for 50 vehicles, but by the mid-1950s the Army was buying Land Rovers 200 vehicles at a time. Land Rovers were deployed to the Korean War and the Suez Crisis, and became standard light military vehicles throughout the Commonwealth. However, as the 1960s progressed, more and more specialised versions were developed. As well as the standard 'GS' (General Service) vehicles, a common variant was the 'FFR' (Fitted For Radio), which had 24-volt electrics and a large engine-powered generator to power on-board radios. There were also Ambulances on the series-II and series-III chassis. A well-known version was the LRDPV (Long-Range Desert Patrol Vehicle), commonly called the 'Pink Panther', on account of their distinctive light pink sand camouflage. These series IIs were converted by Marshall's of Cambridge by being stripped of doors and windscreens and fitted with grenade launchers, a machine gun mounting ring and long-range fuel tanks and water tanks. They were used by the SAS for desert patrol and special operations. By the late 1970s, the British Army had acquired around 9,000 series-III models, which were mainly a special "heavy duty" version of the soft top. These models had improved suspension components and a different chassis cross-member design. These were produced in 12-volt 'GS' models and 24-volt 'FFR' versions. A small number were GS and FFR models, but in general the Army used the air-portable half-ton, "lightweight" version. The lightweight was in service by many armies all over the world. In Europe also the Royal Dutch Ground Forces and the Danish Army used the Land Rover lightweight. Instead of the petrol engine the Dutch and Danish lightweights had diesel engines. Instead of the canvas top the Dutch ones had PVC tops like the modern Land Rover "Wolf". In addition, there were also Forward Control models, FV18067 ambulances built by Marshall Aerospace of Cambridge. The Royal Navy and