Jamaica Bay coast, near the southeastern end of Runway 30. The hangar was built in the Moderne architectural style with white stucco-and-concrete walls, glazed sliding doors, a barrel vault-shaped roof, and a bas-relief of Coast Guard insignia above the doors. Its interior measures , and a concrete apron is located outside of the hangar. There is a two-story office wing on the north side of the hangar, as well as one-story attachments to both the west and east. There were also three radio communication towers to the north of the hangar. The Coast Guard occupied the hangar until around 1998. In 1939, the Navy started construction on the first of two planned hangars along the Jamaica Bay coast. The $600,000 steel-framed Hangar A, which was built to house the Navy's flying boats, contains a steel frame and glazed sliding doors to the north and south. Its dimensions are , making it five times as large as hangars 1–8 and three times as large as the Coast Guard Hangar. There are one-story attachments to the west and east. The facade was austere, with no architectural embellishments. A seaplane ramp, wooden pier, and access road were also built along with the new hangar. In 1942, construction started on the second planned hangar, which was labeled Hangar B. The second hangar was an exact duplicate of Hangar A, and it was located to Hangar A's north. In conjunction with this new addition, the Navy also built Seaplane Ramp B. Both hangars were modified to accommodate jet airplanes during the Cold War in the 1950s. Hangar A was demolished in 1998 when DSNY started occupying part of the former Navy site. Volunteers from the Historic Aircraft Restoration Project maintain a collection of aircraft in Hangar B. These planes are similar to those that were historically used at the airfield. Additional buildings Originally, all of the maintenance functions were hosted inside the Administration Building, but they later got their own buildings. Many of these buildings were added from 1934 to 1938 as part of the WPA renovation. The maintenance buildings have similar designs to the original eight hangars. A brick service building and a generator building originally faced hangars 1 and 2, while a pump house and generator building were built near hangars 5 and 6. A one-story garage and maintenance shop was built at the airport's southwest corner along Flatbush Avenue, south of the