Boeing autonomous MQ-25 Stingray completes first test flight with aerial refueling store.

Boeing and the U.S. Navy have for the first time flown the MQ-25 T1 test asset with an aerial refueling store (ARS), a significant milestone informing development of the unmanned aerial refueler.

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The successful 2.5-hour flight with the Cobham ARS – the same ARS currently used by F/A-18 Hornets for air-to-air refueling – was designed to test the aircraft’s aerodynamics with the ARS mounted under the wing (Picture source: Boeing)

The successful 2.5-hour flight with the Cobham ARS – the same ARS currently used by F/A-18 Hornets for air-to-air refueling – was designed to test the aircraft’s aerodynamics with the ARS mounted under the wing. The flight was conducted by Boeing test pilots operating from a ground control station at MidAmerica St. Louis Airport in Mascoutah, Ill. “Having a test asset flying with an ARS gets us one big step closer in our evaluation of how MQ-25 will fulfill its primary mission in the fleet – aerial refueling,” said Capt. Chad Reed, the U.S. Navy’s Unmanned Carrier Aviation program manager. “T1 will continue to yield valuable early insights as we begin flying with F/A-18s and conduct deck handling testing aboard a carrier.”

Future flights will continue to test the aerodynamics of the aircraft and the ARS at various points of the flight envelope, eventually progressing to extension and retraction of the hose and drogue used for refueling. “To see T1 fly with the hardware and software that makes MQ-25 an aerial refueler this early in the program is a visible reminder of the capability we’re bringing to the carrier deck,” said Dave Bujold, Boeing’s MQ-25 program director. “We’re ensuring the ARS and the software operating it will be ready to help MQ-25 extend the range of the carrier air wing.”

The Boeing-owned T1 test asset is a predecessor to the engineering development model aircraft being produced under a 2018 contract award. T1 is being used for early learning and discovery, laying the foundation for moving rapidly into development and test of the MQ-25. Following its first flight last year, T1 accumulated approximately 30 hours in the air before the planned modification to install the ARS.

Earlier this year the U.S. Navy exercised an option for three additional MQ-25 Stingray air vehicles, bringing the total aircraft Boeing is initially producing to seven. The Navy intends to procure more than 70 aircraft, which will assume the tanking role currently performed by F/A-18 Hornets, allowing for better use of the combat strike fighters.

The Boeing MQ-25 Stingray is an aerial refueling drone that resulted from the Carrier-Based Aerial-Refueling System (CBARS) program, which grew out of the earlier Unmanned Carrier-Launched Airborne Surveillance and Strike (UCLASS) program. The MQ-25 first flew on 19 September 2019.

Boeing MQ-25 Stingray unmanned aerial refueler (Picture source: Boeing)