Flight Research Laboratory

The Flight Research Laboratory (building 1244) at NASA's Langley Research Center houses fixed and rotary wing aircraft used in atmospheric and flight research. It also housed simulation equipment used during the Gemini and Apollo programs such as the Rendezvous Docking Simulator (which remains stowed in the ceiling of the hangar) and Projector Planetarium.

The hangar consists of 295 ft by 330 ft of clear space and features a 300 ft by 40 ft door with an additional door for the tail section of large aircraft and covers 70000 sqft with an additional 1007500 cuft of laboratory spaces. At the time of its construction it was one of the largest structures of its kind in the world. The hangar is heated by a radiant heating system consisting of hot water circulated beneath the concrete floor.