Naval Air Station Patuxent River

Naval Air Station Patuxent River (IATA: NHK, ICAO: KNHK, FAA LID: NHK), also known as NAS Pax River, is a United States Naval Air Station located in St. Mary's County, Maryland on the Chesapeake Bay near the mouth of the Patuxent River. It is home to the U.S. Naval Test Pilot School, 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.

The base became a center for testing as several facilities were constructed throughout the 1950s and 1960s; including the U.S. Naval Test Pilot School (1958), the Weapons Systems Test Division (1960), and the Propulsion System Evaluation Facility. The base also served as the testing facility for the V-22 Osprey.

"The 1950s and 1960s saw an abundance of new aircraft, and every type underwent the rigors of testing at Patuxent River. This era marked important milestones: • New amphibious assault ships, among others, joined the Fleet to exploit the unique capabilities of helicopters in vertical assault and replenishment. • Advances in ordnance, navigational equipment and electronics changed tactical doctrine. • Vertical and short take-off/landing aircraft were developed, and helicopters gradually replaced seaplanes." (Patuxent River Museum)

In addition to its role in testing naval aircraft, during the 1950s to 1970s Patuxent River served as an operational base for a Transport Squadron - VR-1, a TACAMO squadron - VQ-4, Airborne Training Unit Atlantic - AEWTULANT, and VW-11, VW-13 AN VW-15 and a number of Patrol Squadrons including VP-8, VP-44, VP-49, VP-24, VP-30 and VP-68.

By 1965, reconnaissance Squadron VQ-4, based at NAS Patuxent River, began using Lockheed C-130s equipped with special communications equipment to perform their around-the-clock Take Charge and Move Out (TACAMO) mission. VQ-4 provided long-range, very-low-frequency communications relay between the National Command Center and the ballistic missile submarine fleet. Two A-7A Corsair II aircraft made the transatlantic crossing from NAS Patuxent River to Evereux, France, in 1967, racking up 3,327 nautical miles in just over seven hours, an unofficial long distance, non-refueled flight by light attack jet aircraft.

Research and development at NAS Patuxent River forged ahead in the 1970s. The Harrier, Tomcat, and Orion were just a few of the major aircraft programs undergoing the rigorous test and evaluation process at NAS Patuxent River. Helicopter programs also achieved major milestones during the 1970s. The Naval Air Test Center (NATC) at NAS Patuxent River took part in helicopter development and testing for new roles, such as minesweeping. The final flight of the service acceptance trials for the AH-1T Cobra helicopter gunship was made at NATC Patuxent River.

Since the end of the Cold War, the Navy's Base Realignment and Closure measures have migrated research and testing facilities for both rotary and fixed-wing aircraft to NAS Patuxent River from decommissioned bases. The complex now hosts over 17,000 people, including active-duty service members, civil-service employees, defense contractor employees, and military dependents.

NAS Patuxent River is home to the Naval Air Systems Command (NAVAIR) Headquarters, the Air Test Wing Atlantic, and the Naval Air Warfare Center Aircraft Division (NAWCAD) Commands.

It was used as a filming location for the Harrison Ford film Random Hearts (1999). Ford and director Sydney Pollack both visited Naval Air Station Patuxent River. Ford, a certified pilot, flew the aircraft himself.