Four C17 Globemaster aircraft will be leased from the Boeing Company, to meet the SDR commitment for a short term enhancement of the RAF’s airlift capability. They will enter service from the middle of 2001. Each of the C-17s will be capable of carrying a wide variety of heavy equipment, ranging from a Challenger tank or three Warrior armoured vehicles, to three of the Army's new Apache attack helicopters or 13 Landrover light trucks. They will make a crucial contribution to the effectiveness of the new Joint Rapid Reaction Forces, and will significantly enhance the airlift capabilities during operations

Powerplant: Four Pratt & Whitney F117-PW-100 turbofans, with a total thrust of 166,800 lb (742.2kN).
Span: 169ft 9in (51.74m)
Length: 174ft (53.04m)
Max Cruise Speed: 403mph (648km/h)

Accommodation: Flight deck crew of two plus one loadmaster, with additional seats on flightdeck for observers or releif aircrew. Up to 102 troops/paratroops; 48 litter and 54 ambulatory patients and attendants; 18 pallets; maximum payload 170,900lbs (76,644kg) .

Recognition: In common with many other military transport aircraft, the C-17 features a high 'T-tail', shoulder-mounted wings and a swept rear fuselage containing the landing ramp. The main wheels are housed in external fairings to maximise main cabin space.