20-Foot Vertical Spin Tunnel GalleryTechnician Clinton Duncan readies a Hybrid Wing Body model for tests in the NASA Langley spin tunnel in 2012.20-Foot Vertical Spin Tunnel with General Aviation Model on September 28, 1994.In 1994, tests in NASA Langley's spin tunnel helped determine spin recovery parachute requirements for the F-22 fighter jet.NASA Langley spin tunnel researchers tested a Mercury capsule model in 1959.The spinning model is supported in the tunnel by the vertically rising air currentNorthrop XB-35 in 20 Foot Spin TunnelTesting a model in the 20-Foot Spin Tunnel on August 20, 1941.NACA 20-Foot Free-Spinning Wind Tunnel, NASA Langley