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Longitudinal Stability and Control With Special Reference to Slipstream Effects
Report presents the results of a study of data obtained in the NACA full-scale wind tunnel concerning the effects of interference and of propeller operation on longitudinal stability and control. The data include pitching moments for various power conditions for airplanes with tails removed and with tails set at various stabilizer and elevator angles. A number of surveys of the dynamic pressure and the flow direction in the region of the horizontal tail surface are also included.
Date:
August 24, 1939
Creator:
Katzoff, S.
System:
The UNT Digital Library
Correlation of Cooling Data From an Air-Cooled Cylinder and Several Multicylinder Engines
"The theory of engine-cylinder cooling developed in a previous report was further substantiated by data obtained on a cylinder from a Wright R-1820-G engine. Equations are presented for the average head and barrel temperatures of this cylinder as functions of the engine and the cooling conditions. These equations are utilized to calculate the variation in cylinder temperature with altitude for level flight and climb" (p. 59).
Date:
August 15, 1939
Creator:
Pinkel, Benjamin & Ellerbrock, Herman H., Jr.
System:
The UNT Digital Library