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Some New Aerodynamical Relations

Description: This report contains three new relations extending the modern theory of aeronautics. The first part contains a relation between the power absorbed by an aerofoil and the power absorbed by a propeller. In the second part the exactness of the ordinary formula for the induced drag of an aerofoil is examined and the error is determined. In the third part the author shows that for the calculation of the air forces on bodies of considerable volume the imaginary sources and sinks equivalent to the flo… more
Date: 1923
Creator: Munk, Max M.
Partner: UNT Libraries Government Documents Department
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Controllability and Maneuverability of Airplanes

Description: This investigation was conducted for the purpose of studying the behavior of the JN4H airplane in free flight under the action of its controls and from this to arrive at satisfactory definitions and coefficients for controllability and maneuverability. The method consisted in recording the angular velocity about the three axes, together with the air speed, control positions, and acceleration.
Date: 1923
Creator: Norton, F. H. & Brown, W. G.
Partner: UNT Libraries Government Documents Department
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The Air Propeller, Its Strength and Correct Shape

Description: It is possible to give a propeller such a shape that, under given conditions, viz., a definite speed of revolution and flying speed, the bending stresses in the blades will assume quite an insignificant magnitude.
Date: February 1923
Creator: Dietsius, H.
Partner: UNT Libraries Government Documents Department
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