HH-60 switching to the GAU-21 machine gun

The U.S. Air Force’s HH-60G Pave Hawk is switching out its GAU-18 machine gun for the GAU-21. A HH-60G is now at Edwards Air Force Base for the 412th Test Wing and 418th Flight Test Squadron to verify the ballistics qualities of the new machine gun on the Pave Hawk.

US Navy 100303-N-3885H-027 Naval Air Crewman 2nd Class Casey Peet and Naval Air Crewman 2nd Class Sean Sondergaard conduct a pre-flight inspection on a .50-caliber machine gun
By U.S. Navy photo by Mass Communication Specialist 3rd Class Nicholas Hall [Public domain], via Wikimedia Commons
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