U.S. Air Force Tests AFRL Gray Wolf Prototype Cruise Missile

The U.S. Air Force (USAF)’s 416th Flight Test Squadron (416th FLTS) recently completed a round of tests of the Air Force Research Laboratory (AFRL)’s Gray Wolf prototype cruise missile at Edwards Air Force Base, California.

Gray Wolf is a U.S. Department of Defense (DoD)-directed prototype production and demonstration of low-cost, subsonic and networked collaborative cruise missiles. The missiles are designed to launch in a swarm to target enemy integrated air defense threats.

These low-cost cruise missiles will offer a stand-off solution with a variable payload capability, meaning the missiles are designed to cruise for distances greater than 250 nautical miles and can accommodate multiple mission profiles.

AFRL Gray Wolf
AFRL Gray Wolf cruise missile underwing mount. (Photographer-Mr. David Kidd, 96th TW Multimedia Support Services)

“Gray Wolf is a science & technology demonstration effort, intended as a proof of concept program,” said Conor Most, 416th FLTS Flight Test Engineer. “AFRL serves as the system program office (SPO) for the weapon and developed the original request for proposal.”

Earlier this year, the Gray Wolf’s TDI-J85 engine completed a successful flight test campaign culminating in multiple inflight windmill starts and operation at high altitude.

The program has already reached certain test milestones: Electromagnetic Interference & Compatibility (EMIC) and a “captive carry” flight. A live release test at the Naval Air Station Point Mugu Sea Test Range is scheduled later this summer.

AFRL Gray Wolf missile captive-carry flight test on F-16
An F-16 Fighting Falcon flown by Maj. Jacob Schonig from the 416th Flight Test Squadron at Edwards Air Force Base, California, conducts a captive-carry flight test with a Gray Wolf cruise missile prototype over the Pacific Ocean, June 9, 2020. (U.S. Air Force photo by Ethan Wagner)

“The EMIC check is ground check to confirm the missile is okay to fly on our specific test aircraft,” Most explained. “A captive-carry flight is the first flight with the weapon; the goal is to rehearse the weapon flight profile and gather critical state/environmental data about the weapon.”

Most added that the importance of successfully conducting physical tests, as opposed to laboratory-simulated, provides the Gray Wolf team with invaluable critical data.

“Getting the weapon airborne and gathering data is crucial to the development for a new weapon system like this,” Most said. “With just one captive carry flight, the team learned more than in weeks or months of laboratory testing. Modeling and simulation go a long way to helping you predict how a new weapon will behave, but they will never replace actually putting the weapon on an aircraft and observing how it actually behaves in a real-world environment.”

AFRL Gray Wolf cruise missile on F-16
F-16 Fighting Falcon crew chief, Airman 1st Class Wyatt Hegner, prepares Maj. Jacob Schonig, 416th Flight Test Squadron, for a captive-carry flight test of the Gray Wolf cruise missile prototype at Edwards Air Force Base, California, June 9, 2020. (U.S. Air Force photo by Kyle Brazier)

Conducting physical flight tests is critical to mission success, and the Gray Wolf test team faced challenges amidst COVID-19 restrictions as different portions of the test team were located throughout the country. Besides the test team at Edwards, the Gray Wolf tests included personnel from AFRL, Point Mugu, and others throughout the Air Force Test Center enterprise, namely at Eglin Air Force Base, Florida.

“Key support from AFRL and AFTC leadership enabled the missions to take place,” said Capt. Adam Corley, AFRL Gray Wolf Program Manager. “These tests overcame, and were accomplished, during the COVID-19 posture. Collaboration between Eglin, Edwards, and the Point Mugu Sea Range made these flight tests possible. Through close partnership, we were able to fly on the sea range and stream live feeds to Edwards and Eglin control rooms overcoming the travel ban issue and allowing key personnel to participate in the flight tests.”

AFRL Gray Wolf prototype cruise missile
Members from the Gray Wolf test team and 416th Flight Test Squadron, pose for a photo following a captive-carry flight test of the Gray Wolf cruise missile prototype at Edwards Air Force Base, California, June 9, 2020. (U.S. Air Force photo by Kyle Brazier)



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