Word: tunnel
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Dates: during 1950-1959
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Supersonic Wind Tunnel...
Though the University does not have the vast Guggenheim Memorial Laboratory, it does have the world's first supersonic speed wind tunnel. From this wind tunnel and other equipment have come experimental data that revolutionized jet engine design...
...tunnel was built with funds provided by the Pratt and Whitney Company, aircraft engine and propeller manufactures, for use in discovering the aerodynamic characteristics of the rotors used in the compressors of jet engines...
Three-Part Tunnel...
Pratt and Whitney provided three pieces of equipment, the tunnel, an axial flow compressor rig, and a centrifugal compressor rig. The tunnel is divided into three parts. The first, or front, is for subsonic speeds and is used to calibrate the instruments used in the testing program. This subsonic section, with a diameter of six inches, narrows down to a throat--shaped section where supersonic speeds are produced. Behind this is a subsonic cascade tunnel, used in the rotor tests...