The Airbus A400M new generation airlifter has further proved its credentials as a tanker by successfully demonstrating simultaneous air-to-air refuelling of two F/A-18 fighters. In the course of four flights, the A400M performed 74 contacts and dispensed 27.2 tonnes of fuel to the Spanish Air Force aircraft. Refuelling was conducted at altitudes of 20,000ft – 33,000ft, and airspeeds of 180kt – 300kt – the preferred refuelling envelope for fighters.