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Pressure-distribution measurements over an extensible leading-edge flap on two wings having leading-edge sweep of 42 degrees and 52 degrees
Report presenting an investigation of the pressure distribution over a leading-edge flap in the 19-foot pressure tunnel. Testing occurred on 42 degree and 52 degree sweptback wings of NACA 64(sub 1)-112 sections, with the 42 degree wing being used in conjunction with a circular cross-section fuselage in a high-wing combination.
Date:
March 7, 1949
Creator:
Salmi, Reino J.
System:
The UNT Digital Library
Investigation of ceramic, graphite, and chrome-plated graphite nozzles on rocket engine
The use of ceramic material for rocket nozzles and the effectiveness of preventing oxidation and erosion of graphite nozzles by chrome-plating the internal surface were investigated. A supported ceramic nozzle, cracked by initial operation, was operated a second time without further cracking or damage. Chrome-plating the internal surface of graphite nozzles effectively prevented oxidation and erosion that occurred during operation with unprotected graphite.
Date:
March 7, 1949
Creator:
Kinney, George R. & Lidman, William G.
System:
The UNT Digital Library