SBG Systems Stellar-40
General Atomics Aeronautical Systems, Inc

GA-ASI Announces Successful MQ-25 Stingray Engine Test

By Mike Ball / 04 Jun 2018
Follow UST

MQ-25 Stingray unmanned refuelling tanker aircraft

General Atomics Aeronautical Systems, Inc. (GA-ASI) has announced that it has completed its first powered run of the Pratt & Whitney (P&W) PW815 engine selected for the U.S. Navy’s MQ-25 Stingray unmanned aerial refueling aircraft. The test, undertaken with the GA-ASI MQ-25A inlet and exhaust configuration, met all objectives and collected extensive data that the team is now evaluating.

“Through the superb efforts of personnel from both companies, we were able to move the test date forward by almost two months, from the originally scheduled date in late May,” said David R. Alexander, president, Aircraft Systems, GA-ASI. “This is just another example of how we are working to reduce risk and accelerate capability. GA-ASI has a 14 year history working with P&W and selected the PW815 engine for the MQ-25 based on its exceptional performance and fuel efficiency. This performance and efficiency will subsequently translate into more available fuel for the receiving aircraft. Additionally, initial studies have shown the PW815 is well-suited for a carrier environment.”

The rapid development of the engine test stand demonstrates the team’s dedication to the principles of the U.S. Navy’s Maritime Accelerated Capability Office (MACO). The test stand was commissioned at the beginning of 2018 and the first test run was ready three months later. A PW815 engine was delivered to GA-ASI’s test facility on March 5th and by early April, the team successfully performed the first test.

“Through many years of working with GA-ASI, we are routinely impressed with the quality of work produced and speed at which it is accomplished,” said Kinda Eastwood, senior director of F117 and Tanker Programs of Pratt & Whitney. “This engine run was no exception. It performed flawlessly and met all test requirements. GA-ASI continuously pushes the envelope to meet the objectives and timelines for their customers.”

To learn more, visit the General Atomics Aeronautical Systems, Inc Partner Hub: Innovation Partner Hub
Posted by Mike Ball Mike Ball is our resident technical editor here at Unmanned Systems Technology. Combining his passion for teaching, advanced engineering and all things unmanned, Mike keeps a watchful eye over everything related to the unmanned technical sector. With over 10 years’ experience in the unmanned field and a degree in engineering, Mike’s been heading up our technical team here for the last 8 years. Connect

More from General Atomics Aeronautical Systems, Inc

USAF Takes Delivery of FQ-42 Vengeance Combat Jet at Creech AFB
USAF Takes Delivery of FQ-42 Vengeance Combat Jet at Creech AFB

General Atomics Aeronautical Systems, Inc. delivers another FQ-42 Vengeance uncrewed fighter to Creech Air Force Base, advancing autonomous flight testing and operational experimentation for the U.S. Air Force Collaborative Combat Aircraft program

Sep 23, 2026
GA-ASI & Hanwha Aerospace Prove Uncrewed Battlefield Short Field Capabilities
GA-ASI & Hanwha Aerospace Prove Uncrewed Battlefield Short Field Capabilities

General Atomics Aeronautical Systems and Hanwha Aerospace successfully demonstrate the Mojave STOL uncrewed aircraft performing landing and takeoff operations under simulated live-fire combat conditions at a South Korean maneuver trail

Sep 18, 2026
GA-ASI & Tactical Air Support Demonstrate Advanced Human-Machine Teaming in Live Exercise
GA-ASI & Tactical Air Support Demonstrate Advanced Human-Machine Teaming in Live Exercise

General Atomics Aeronautical Systems, Inc. and Tactical Air Support, Inc. successfully execute live flight testing of multi-ship infrared passive sensing and open architecture software to close tactical kill chains against airborne threats

Sep 17, 2026
GA-ASI to Open 22,000-Square-Foot UAS Innovation Hub in Ohio
GA-ASI to Open 22,000-Square-Foot UAS Innovation Hub in Ohio

General Atomics Aeronautical Systems is expanding its presence in Dayton, Ohio, with a new 22,000-square-foot innovation hub focused on hardware, software, autonomy, rapid prototyping, integration, and testing of next-generation UAS capabilities for U.S. Air Force programs

Sep 16, 2026
GA-ASI Unveils Wildfire UAS for High-Capability & Cost-Conscious Ops
GA-ASI Unveils Wildfire UAS for High-Capability & Cost-Conscious Ops

General Atomics Aeronautical Systems launches its groundbreaking Wildfire UAS, combining exceptional endurance, massive payload capacity, and high autonomy to deliver cost-effective mass for defense and commercial roles

Sep 11, 2026
GA-ASI to Expand Italian Air Force Fleet with Two Additional Reapers
GA-ASI to Expand Italian Air Force Fleet with Two Additional Reapers

General Atomics Aeronautical Systems will deliver two new MQ-9A Block 5 Reapers to the Italian Air Force, boosting long-endurance surveillance capabilities across domestic, Mediterranean, and NATO operational spheres

Sep 10, 2026

THE WEEKLY eBRIEF

The latest unmanned systems news, straight to your inbox.

Get our weekly roundup of technology developments, new products and industry news.

By subscribing, you agree to receive the weekly UST eBrief newsletter from EchoBlue Ltd. Unsubscribe at any time using the link in every email. See our Privacy Notice.

Advancing Unmanned Systems Through Strategic Collaboration UST works with major OEMs to foster collaboration and increase engagement with SMEs, to accelerate innovation and drive unmanned systems capabilities forward.