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WIND TUNNEL 1--1-
Chance-Vought aircraft, south of Grand Prairie, has just finished building one of the most ad- vanced wind tunnels in the world. In the old days when you needed an air tunnel to test air- plane structures you built a big tunnel, then set up a an and a powerful motor on one end, and you were in business. Nowadays faster-than- sound aircraft and missiles require wind tunnel air pressures that are matched in nature only in
the center of a tornado.
Uhance-vought tests its
new tunnel with a specially-built dummy vehicle, Inside the rocket-like vehicle are instruments that will relay information taken during the test to a control panel in another part of the chamber. Today s test is at mach 1.8, or at speeds of about