Sikorsky Testing
A technician sets up camera equipment to watch the rotor-blades on a Sikorsky YR-4B/HNS-1 helicopter in a wind tunnel at NASA’s Langley Research Center.
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A technician sets up camera equipment to watch the rotor-blades on a Sikorsky YR-4B/HNS-1 helicopter in a wind tunnel at NASA’s Langley Research Center.