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Exploratory Tests of Transpiration Cooling on a Porous 8 Degree Cone at M = 2.05 Using Nitrogen Gas, Helium Gas, and Water as the Coolants

Description: Report presenting an investigation of the effectiveness of transpiration cooling on an 8 degree total-angle conical body with a porous skin for various coolant mass flow rates of nitrogen gas, helium gas, and distilled water.
Date: June 3, 1955
Creator: Chauvin, Leo T. & Carter, Howard S.
Partner: UNT Libraries Government Documents Department
open access

Experimental Investigation of the Zero-Lift Wave Drag of Seven Pairs of Delta Wings With Constant and Varying Thickness Ratios at Mach Numbers of 1.62, 1.93, and 2.41

Description: Report presenting seven pairs of wings tested at Mach numbers of 1.63, 1.93, and 2.41 to determine the validity of NACA TN 2858, which predicts that delta wings with linearly varying thickness ratio have less wave drag than a constant-thickness-ratio delta wing. Results regarding the zero-lift wave drag, values of lift, total drag, pitching moment, and lift-drag ratios for an angle of attack range are provided.
Date: June 3, 1955
Creator: Henderson, Arthur, Jr.
Partner: UNT Libraries Government Documents Department
open access

Temperature in a J47-25 Turbojet-Engine Combustor and Turbine Sections During Steady-State and Transient Operation in a Sea-Level Test Stand

Description: From Summary: "In order to determine the conditions of engine operation causing the most severe thermal stresses in the hot parts of a turbojet engine, a J47-25 engine was instrumented with thermocouples and operated to obtain engine material temperatures under steady-state and transient conditions. Temperatures measured during rated take-off conditions of nozzle guide vanes downstream of a single combustor differed on the order of 400 degrees F depending on the relation of the blades position … more
Date: June 3, 1955
Creator: Morse, C. R. & Johnston, J. R.
Partner: UNT Libraries Government Documents Department
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