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Aviation history is made with UAV air-to-air refuelling success

Posted on 12 Jun 2021 and read 1851 times
Aviation history is made with UAV air-to-air refuelling successPhoto by Kevin Flynn

The US Navy and Boeing have demonstrated air-to-air refuelling for the first time using an unmanned aerial vehicle (UAV) — a Boeing MQ-25 T1 Stingray test asset — to refuel another aircraft.

During a test flight on 4 June, the UAV successfully extended the hose and drogue from its US Navy-issued aerial refueling store (ARS) and safely transferred jet fuel to a US Navy F/A-18 Super Hornet, demonstrating the MQ-25 Stingray’s ability to carry out its primary aerial refuelling mission.

Rear Admiral Brian Corey, who oversees the Program Executive Office for Unmanned Aviation and Strike Weapons, said: “Over the next few years, we will work side-by-side with Boeing to deliver this capability that will greatly enhance the future carrier air wing.”

Leanne Caret, president and CEO of Boeing Defense, Space and Security, said: “This history making event is a credit to our joint Boeing and Navy team that is all-in on delivering MQ-25‘s critical aerial refuelling capability to the fleet as soon as possible. Their work is the driving force behind the safe and secure integration of unmanned systems in the immediate future of defense operations.”



During the initial part of the flight, the F/A-18 test pilot flew in close formation behind MQ-25 to ensure performance and stability prior to refuelling – a manoeuvre that required as little as 20ft of separation between the MQ-25 T1 UAV and the F/A-18 refuelling probe.

Both aircraft were flying at operationally relevant speeds and altitudes. With the evaluation safely completed, the MQ-25 drogue was extended, and the F/A-18 pilot moved in to ‘plug’ with the unmanned aircraft and receive the scheduled fuel offload.

The milestone comes after 25 T1 flights, testing both aircraft and ARS aerodynamics across the flight envelope, as well as extensive simulations of aerial refuelling using MQ-25 digital models.

MQ-25 T1 will continue flight testing prior to being shipped to Norfolk, Virginia, for deck handling trials aboard a US Navy carrier later this year.

The Boeing-owned T1 test asset is a predecessor to the seven test aircraft Boeing is manufacturing under a 2018 contract award. The MQ-25 will assume the tanking role currently performed by F/A-18s, allowing for better use of the combat strike fighters and helping extend the range of the carrier air wing.