Here are the top 10 military traditions that need a lot of explaining to your civilian family members.
KC-30A Multi-Role Tanker Transport
Two Royal Australian Air Force KC-30A Multi-Role Tanker Transports (aircraft A39-001 and -005) have conducted testflights of the aircraft's Aerial Refuelling Boom System (ARBS) in Spain throughout 2014. Each KC-30A is also equipped with a Universal Aerial Refueling Receptacle Slipway Installation (UARSSI), allowing it to be refuelled from another aircraft inflight. During refuelling, the ARBS extends from the tail of the KC-30A to a length of 18.2 metres, and can transfer fuel at up to 4600 litres per minute. In RAAF service, the ARBS will be compatible with refuelling the KC-30A, E-7A Wedgetail, and the C-17A Globemaster, as well as the F-35A Lightning II and P-8A Poseidon. The KC-30A features also features hose-and-drogue refuelling pods beneath each wing, which are currently used by the RAAF to refuel Hornets and Super Hornets.