Naval Air Station South Weymouth - Post-war Demobilization and Cold War Use

Post-war Demobilization and Cold War Use

South Weymouth was downgraded from a naval air station to a naval air facility on August 9, 1945 after Germany surrendered, thus ending the U-Boat threat to the east coast, and was thereafter used to store surplus naval aircraft that were awaiting final disposition. Many of these aircraft, especially Eastern/Grumman TBM/TBF Avengers, were subjected to elaborate cocooning and preservation methods in the two huge blimp hangars. During this period of South Weymouth's history the base was known as a naval aircraft parking station or "NAPS". Naval Air Facility South Weymouth was placed into caretaker status on June 30, 1949 and downgraded again to an auxiliary landing field or "ALF".

In 1950 the Navy decided to close Squantum Naval Air Station, traditionally the focus of Navy and Marine Corps reserve aviation training in New England, and move the reserve program to ALF South Weymouth. The decision to close NAS Squantum resulted from increasing incidents of airspace conflicts with Boston's commercial airport (modern-day Logan International Airport) in nearby East Boston and due to the fact that Squantum's relatively short and landlocked (waterlocked?) runways were not capable of supporting high-performance jet aircraft.

Between 1952 and 1953 NAAF South Weymouth was rebuilt to make it more suitable for supporting conventional aircraft operations. In its original WWII format, the base was not really intended for regular use by heavier-than-air aircraft. Its cinder-covered turf runways were only intended for transient aircraft, the station's Beech GB Traveler, and other light utility aircraft. During the 1952–1953 reconstruction effort LTA Hangar Two (the wooden blimp hangar) was razed, three new paved runways (7,000-foot (2,100 m) north–south runway 17/35, 2,000-foot (610 m) east–west runway 08/26, and 5,000-foot (1,500 m) diagonally aligned runway 02/20) were built, and a CPN-4 ground-controlled-approach facility and modern control tower (the wartime base's control towers were located on top of LTA Hangar One) were established. South Weymouth was reactivated as a reserve training base and fully-fledged naval air station on December 4, 1953.

Though officially a reserve base, NAS South Weymouth hosted an unusual regular Navy unit between 1953 and 1961. This was a secretive research and development outfit called the Naval Air Development Unit, known as "NADU" for short. The NADU, which derived in a way from Special Project Unit (SPU) CAST based at Squantum Naval Air Station during WWII, was tasked with providing flight testing support for research projects associated with the MIT Lincoln Laboratories and other defense contractors. Mainly, these research projects involved experimental electronic equipment such as radars associated with air defense and anti-submarine warfare systems. The NADU operated a diverse aircraft fleet that included (among other things) Lockheed WV-2 Warning Stars, Douglas F4D Skyrays, Douglas F3D Skyknights, Lockheed P2V Neptunes, and the ZPG-2W, which were the world's largest blimps.

In December 1956 a new hangar, Hangar #2, was completed adjacent to runway 17/35 to support the fixed-wing ASW and attack squadrons. Runway 08/26 was lengthened to 6,000 feet during 1959. The construction work required on the eastern end of this runway permanently severed Union Street, which had served as a major thoroughfare connecting the towns of Rockland and Weymouth. Blimp operations were discontinued at NAS South Weymouth in July 1961 in advance of the disestablishment of the Naval Air Development Unit on October 1.

Two reserve anti-submarine squadrons were activated at NAS South Weymouth during the Berlin Crisis. VS-915, which was based at NAS South Weymouth, was activated on October 1, 1961. It was joined by VS-733 transferred from NAS Grosse Ile, MI on November 1. Both squadrons flew operational ASW patrols from NAS South Weymouth and detachment sites such as Key West and Guantanamo Bay, Cuba for nearly a year.

During the 1960s the station hosted a pair of unique Anti-Submarine Warfare Operational Flight Trainers. These consisted of two retired aircraft fuselages, a Grumman S-2A Tracker (crash damaged) and a Lockheed SP-2E Neptune (fire damaged), that were placed on the flat roof of the so-called "lean-to" on the southern side of LTA Hangar One. The radar scopes and other ASW sensors positioned at the tactical crew positions in these two aircraft fuselages were connected to signal generating devices located in the ASW Training Department spaces in the hangar, allowing them to serve as fixed tactical training simulators for reserve aircrewmen.

Steel blimp hangar LTA Hangar One, a local landmark, was demolished in 1966 and replaced with a much smaller concrete arch hangar (Hangar #1). The new hangar was not completed until November 1970, due in large part to a disaster on August 18, 1967 when several concrete arches collapsed, killing two civilian crane operators. The base had target ranges at the nearby Nomans Land Island and the Liberty Ship SS James Longstreet. The base hosted the Navy Weymouth Aero Club from 1961 until the club's closure in 1984.