National Advisory Committee for Aeronautics (NACA) - 3 Matching Results

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Air-consumption parameters for automatic mixture control of aircraft engines

Description: From Introduction: "The purpose of this analysis was to investigate the use of a function of intake-manifold pressure, exhaust back pressure, intake manifold temperature, and engine speed in place of a venturi as a means of measuring engine air consumption and to determine if this function is suitable for automatic mixture control."
Date: September 1, 1944
Creator: Shames, Sidney J.
Partner: UNT Libraries Government Documents Department

The Elastic Constants for Wrought Aluminum Alloys

Description: There are several constants which have been devised as numerical representations of the behavior of metals under the action of loadings which stress the metal within the range of elastic action. Some of these constants, such as Young's modulus of elasticity in tension and compression, shearing modulus of elasticity, and Poisson's ratio, are regularly used in engineering calculations. Precise tests and experience indicate that these elastic constants are practically unaffected by many of the factors which influence the other mechanical properties of materials and that a few careful determinations under properly controlled conditions are more useful and reliable than many determinations made under less favorable conditions. It is the purpose of this paper to outline the methods employed by the Aluminum Research Laboratories for the determination of some of these elastic constants, to list the values that have been determined for some of the wrought aluminum alloys, and to indicate the variations in the values that may be expected for some of the commercial products of these alloys.
Date: January 1, 1945
Creator: Templin, R. L. & Hartmann, E. C.
Partner: UNT Libraries Government Documents Department

The Compressive Yield Strength of Extruded Shapes of 24st Aluminum Alloy

Description: The following report discusses an investigation that was made to determine the tensile and the compressive properties of a large number of 24ST extruded shapes selected at random from commercial production in order to investigate the interrelation of these properties.
Date: January 1, 1941
Creator: Templin, R. L.; Howell, F. M. & Hartmann, E. C.
Partner: UNT Libraries Government Documents Department