(Korean): The 309FS is part of the 56th Operations Group at Luke Air Force Base, AZ. It operates the F-16 Fighting Falcon aircraft conducting advanced fighter training. The 309th FS (“Wild Ducks”), flies F-16C and F-16D aircraft drawn from production Blocks 25 and 42 conducting F-16 crew training for active duty USAF pilots. I found this patch in a Korean embroidery shop in limited quantities, has that “theater-made” feel about it, and does not come with velcro attached.