Airbus A400M conducts helicopter AAR certification campaign 20 Apr 2021 (Last Updated April 20th, 2021 09:48) The Airbus A400M military transport aircraft has completed a major helicopter air-to-air refuelling (AAR) certification campaign. Share Article The Airbus A400M military transport aircraft has completed a major helicopter air-to-air refuelling (AAR) certification campaign. With the latest milestone, the company has achieved the majority of the helicopter’s development and certification goals. The flight tests were performed along with two French Air Force H225M helicopters over the west coast of France. Airbus noted that the certification campaign was carried out at different conditions during the day and night at altitudes between 1,000ft and 10,000ft and at flight speeds as low as 105k.