Naval Air Warfare Centers (NAWC) are research organizations within Naval Air Systems Command. The Centers are grouped into different divisions, each with a different history and location. In the 1990’s, it was closed from it’s original base in Pennsylvania and combined with the other test divisions at NAS Patuxent River, MD. This is the triangular version of their squadron patch with the black border that shows (what looks like to me) an F/A-18C HORNET, says “AIRCRAFT DIVISION” (bottom), and does NOT have velcro attached.