Roy Steiner

Harry Press

An analysis of available airplane measurements of vertical gust velocity is presented in order to arrive at a simple description of the frequency and intensity of gust velocities experienced by airplanes in operations. For the purpose of application to missile operations; the results obtained are modified to eliminate the effects of storm-avoidance procedures normally followed in airplane operations. The frequency distributions of gust velocity are then converted to a form appropriate for use in power spectral response calculations. Methods of applying the results to the estimation of the large and the small repeated loads in missile operations are then developed. Simple methods of estimating the gust loadings that will be exceeded with a given probability are presented in terms of missile response parameters and turbulence parameters. The limitations of the present results are also discussed briefly.

An Approach to the Problem of Estimating Severe and Repeated Gust Loads for Missile Operations

United States. National Advisory Committee for Aeronautics

Benjamin Milwitzky

Keith C. Harder

Milton Van Dyke

Vasily D. Prian

Curt A. Holzhauer

Francis E. Cook

Frederick C. Grant

Herbert C. Nelson

James J. Kramer

Maurice Tucker

Richard T. Whitcomb

Conrad Rennemann

Herbert J. Cunningham

May T. Meadows

Richard S. Bray

Chung-Hua Wu

Ivan Hadlock

Wind-tunnel and Flight Investigations of the Use of Leading-edge Area Suction for the Purpose of Increasing the Maximum Lift Coefficient of a 35 ̊swept-wing Airplane

Harry Press

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