Naval Air Station Patuxent River, also known as NAS Pax River, is a US Naval Air Station located in Maryland on the Chesapeake Bay near the mouth of the Patuxent River. It is home to Headquarters, Naval Air Systems Command (NAVAIR), the U.S. Naval Test Pilot School, the Atlantic Test Range, and serves as a center for test and evaluation and systems acquisition relating to naval aviation. Commissioned on April 1, 1943, on land largely acquired through eminent domain, the air station grew rapidly in response to World War II and continued to evolve through the Cold War to the present….to see all the history, just check it out online. This patch was created for their “FLIGHT TEST” division that focused on “ANTI-SUBMARINE WARFARE (ASW)” and does not come with velcro attached.