NAVAL AIR STATION PATUXENT RIVER

OVERVIEW

Naval Air Station Patuxent River is the U.S. Navy's premier aviation research, development, test, and evaluation installation, occupying 6,400 acres along the Chesapeake Bay in southern Maryland. The base is the headquarters of Naval Air Systems Command (NAVAIR), the major Navy command responsible for designing, fielding, and sustaining naval aircraft, weapons, and avionics across the fleet. Approximately 22,000 active-duty members, civilians, and contractors work on the installation, making it the largest single employer in southern Maryland and a foundational piece of the broader regional defense industrial base.

NAS Patuxent River — known throughout naval aviation as "Pax River" — hosts every Navy fixed-wing and rotary-wing test squadron, including HX-21 (rotary-wing), VX-1 (maritime patrol), VX-20 (maritime support), and VX-23 (strike). The U.S. Naval Test Pilot School, founded in 1945 and based at Pax, is one of only three military test pilot schools in the United States, training test aircrew for the Navy, Marine Corps, Coast Guard, and selected international and joint partners. Major modern programs developed and tested at Pax include the F-35B and F-35C Lightning II, the MQ-25 Stingray carrier-based aerial refueler, the CMV-22B Osprey, and the broader Navy unmanned aviation portfolio. The base operates a primary airfield with three runways and an auxiliary outlying field at Webster Field, also in St. Mary's County.

KEY FACTS

• MissionNaval aviation research, development, test, and evaluation
• NAVAIR HQHeadquarters of Naval Air Systems Command
• Test Pilot SchoolU.S. Naval Test Pilot School — one of three U.S. military test pilot schools
• Test SquadronsHome of every Navy fixed-wing and rotary-wing test squadron
• Major ProgramsF-35, MQ-25, CMV-22B, and unmanned aviation development

HISTORY

Naval Air Station Patuxent River was commissioned on April 1, 1943, the result of a wartime decision to consolidate the Navy's geographically scattered aviation test activities at a single location. Before Pax River, Navy aviation testing was performed at NAS Anacostia, NAS Norfolk, and several smaller test sites — an arrangement that complicated coordination, slowed program development, and tied up scarce ramp space at operational installations. The Navy selected the Cedar Point peninsula at the mouth of the Patuxent River for its expansive available land, proximity to deep water, and unrestricted Chesapeake Bay airspace ideal for instrumented flight testing.

Construction proceeded at wartime pace, and within a year of commissioning the base was hosting flight test activities for nearly every Navy aircraft program. Pax River's central role in U.S. naval aviation development was cemented in 1945 with the establishment of the Naval Test Pilot School, the Navy's formal institution for training experimental test pilots and engineers. Over subsequent decades, the school produced generations of Navy and Marine Corps test pilots, including a notable contingent who became NASA astronauts — among them John Glenn, Alan Shepard, and Jim Lovell — making Pax River a fixture in the early years of the U.S. human spaceflight program.

Through the Cold War, every major Navy aircraft was tested at NAS Patuxent River, from the F-4 Phantom II and the A-6 Intruder of the 1960s, to the F-14 Tomcat and F/A-18 Hornet of the 1980s, to the V-22 Osprey of the 1990s and 2000s. The 1991 BRAC round directed the relocation of Naval Air Systems Command headquarters from Crystal City, Virginia, to NAS Patuxent River, a multi-year move completed in 1995 that turned Pax River into both a flight test base and the institutional headquarters of Navy aviation acquisition. Pax River subsequently hosted the integrated test team for the F-35B and F-35C variants of the Lightning II, conducting first sea trials and developmental testing for both aircraft.

Today, NAS Patuxent River sustains its dual role as the Navy's central aviation development hub and the headquarters of NAVAIR. Its test squadrons, schoolhouse, and engineering workforce continue to validate every new naval aircraft, weapon, sensor, and unmanned system before it reaches the fleet, while the base anchors a southern Maryland defense innovation corridor that includes universities, industry, and federal partners.

MAJOR COMMANDS & TENANT UNITS

• Naval Air Systems Command (NAVAIR) headquarters
• Naval Air Warfare Center Aircraft Division (NAWCAD)
• U.S. Naval Test Pilot School
• Air Test and Evaluation Squadrons (HX-21, VX-1, VX-20, VX-23)
• Webster Outlying Field (NOLF Webster)

LOCATION & GEOGRAPHY

NOTABLE EVENTS

1. 1943
   Commissioned

   Commissioned in April 1943 to consolidate Navy flight testing in a single location.
2. 1945
   Test Pilot School Founded

   U.S. Naval Test Pilot School established at NAS Patuxent River to formally train Navy test pilots.
3. 1995
   NAVAIR Relocation

   Naval Air Systems Command headquarters relocated to NAS Patuxent River from Crystal City, VA, under BRAC 1991.

NEARBY BASES

FREQUENTLY ASKED QUESTIONS

SOURCES

• Wikipedia: Naval Air Station Patuxent River
• CNIC — NAS Patuxent River
• Naval Air Systems Command (NAVAIR)