The aircraft can be powered by two General Electric CF6-80E1A3, Rolls-Royce Trent 772B or Pratt & Whitney PW 4168A turbofans. The maiden flight of A330 MRTT was held in June 2007, and 37 aircraft were operational with seven international air forces as of May 2019. The MRTT has a maximum take-off weight of 233t making it suitable for dedicated transport missions involving payloads weighing up to 45t. The A330 MRTT (Multi-Role Tanker Transport), built on the basis of the A330 commercial airliner, is a new-generation aircraft from Airbus Military for military transport and air-to-air refuelling missions. The maximum range with 18.1t (40,000lb) payload is 10,390km (5,610nmi), which can be increased with in-flight refuelling. The aircraft is fitted with four Pratt & Whitney PW2040 turbofan engines, which develop a thrust of 40,440lbf (180kN) each to enable a cruise speed of 833.6km/h (0.77 Mach). The aircraft provided support during Operation Joint Endeavor and Allied Operation in Kosovo. Boeing has delivered more than 259 C-17s to 36 export customers to date. The first C-17 aircraft was inducted into USAF service in January 1995. The aircraft has a maximum take-off weight of 265.3t and payload capacity of 74,797kg. It is capable of transporting heavy, oversized payloads and supplies, as well as troops to small airfields in remote areas day and night. The C-17 Globemaster III is a high-wing, military-transport aircraft developed by McDonnell Douglas (now Boeing) for the US Air Force. The power plant ensures a maximum speed of 996km/h and a range of 7,081km with cargo and 18,507km without cargo. The KC-10 Extender is powered by three General Electric CF6-50C2 turbofan engines, which produce a thrust of 52,500lb (233.5kN) each.
Designed primarily for aerial refuelling, the aircraft can perform the missions of a tanker and cargo aircraft by refuelling fighters and can simultaneously carry support personnel and equipment on overseas deployments.
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