Test conducted in NASA Langley Research Center's Full Scale Tunnel in 1935. The first part of the clip shows the tests of a 1/14 scale airship. Smoke streams were used in this test. The second half of the clip shows smoke streams being used to test a 1/14 scale model of the airship's hangar which was located in Lakehurst, New Jersey. The purpose was to measure pressure-distribution measurements.The two engineers who conducted the test, Smith DeFrance and Abe Silverstein, later became Directors of NACA laboratories at Ames and Lewis, respectively.
http://crgis.ndc.nasa.gov/historic/643
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