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The KC-30A MRTT is fitted with two forms of air-to-air refuelling systems - an Aerial Refuelling Boom System mounted on the tail of the aircraft, which comprises a 'fly-by-wire' boom refuel system; and a pair of all-electric refuelling pods underneath each wing, which unreel a hose-and-drogue to refuel probe-equipped aircraft. These systems are controlled by an Air Refuelling Operator in the cockpit, who can view refuelling on 2D and 3D screens.
"The MRTT crew deployed the 17m-long aerial refuelling boom system.
The refuelling aircraft for the Royal Australian Air Force (RAAF) is equipped with both an Aerial Refuelling Boom System (ARBS) and two Cobham 905E under-wing refuelling pods. The aircraft are powered by two General Electric CF6-80E engines.  Australia was initially to procure four aircraft with an option to obtain a fifth. It has since decided to procure the fifth aircraft to allow for two simultaneous deployments of two aircraft, with the fifth for contingency coverage.