The US Air Force (USAF) has performed the first test drops of its new Boeing Guided Bomb Unit‐ (GBU)-72 Advanced 5K (A5K) Penetrator, releasing the ‘bunker buster’ bomb from a Boeing F-15E Strike Eagle.
The service announced on 12 October that it had dropped the 5,000 lb weapon (the 5K in its moniker) on several occasions during a series of tests from late July through to early October.
“That series included the first-ever weapons load, flight and release of the weapon 23 July,” the USAF said. “The test series, deemed a success by the Armament Directorate’s Direct Attack Division, consisted of three flights”. The USAF noted that the final drop took place into the Elgin Air Force Base (AFB) range in Florida on 7 October, marking the end of the flight trials planned by the 780th Test Squadron and performed by the 40th Flight Test Squadron.