The KC-30A Multi-Role Tanker Transport (MRTT) is a heavily modified Airbus A330 airliner that allows the Air Force to conduct air-to-air refuelling and provide strategic air lift.

It features advanced communication and navigation systems, and an electronic warfare self-protection system for shielding against threats from surface-to-air missiles.

The Air Force's seven KC-30A aircraft are based at RAAF Base Amberley, operated by No. 33 Squadron.

The KC-30A MRTT is fitted with two forms of air-to-air refuelling systems:

• an Advanced Refuelling Boom System mounted on the tail of the aircraft
• and a pair of all-electric refuelling pods under each wing.