24 Inch High Speed Tunnel 24 Inch Hst

24-Inch High Speed Tunnel (24-Inch HST): Construction of the foundation for the tunnel. Construction was authorized in 1933 and was built using funds from the Federal Public Works Administration (PWA). The init More

24-Inch High Speed Tunnel (24-Inch HST): Construction of the foundation for the tunnel. Construction was authorized in 1933 and was built using funds from the Federal Public Works Administration (PWA). The init More

24-Inch High Speed Tunnel (24-Inch HST): Construction of the foundation for the tunnel. Construction was authorized in 1933 and was built using funds from the Federal Public Works Administration (PWA). The init More

24-Inch High Speed Tunnel (24-Inch HST): Construction of the foundation for the tunnel. Construction was authorized in 1933 and was built using funds from the Federal Public Works Administration (PWA). The init More

24-Inch High Speed Tunnel (24-Inch HST). Foundation for the tunnel. Construction was authorized in 1933 and was built using funds from the Federal Public Works Administration (PWA). The initial cost was $12,600 More

24-Inch High Speed Tunnel (24-Inch HST). Foundation for the tunnel. Construction was authorized in 1933 and was built using funds from the Federal Public Works Administration (PWA). The initial cost was $12,600 More

24-Inch High Speed Tunnel (24-Inch HST): Construction of the foundation for the tunnel. Construction was authorized in 1933 and was built using funds from the Federal Public Works Administration (PWA). The init More

24-Inch High Speed Tunnel (24-Inch HST). This tunnel was erected to provide a means for investigation of airfoils at high speeds. In the test section a velocity approaching that of sound (approximately 765 mile More