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Variable-Density Tunnel, NASA history collection
Summary
Installing the U.S.A. 35B airfoil test section for testing in the Variable-Density Tunnel(VDT). The VDT Log Book entry for January 3, 1925 notes that this airfoil was installed "for a test with the new big streamline wires.
NASA Identifier: L908
Date
1925
Source
Defense Visual Information Distribution Service
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