Investigation of the Variation of Maximum Lift for a Pitching Airplane Model and Comparison with Flight Results

Investigation of the Variation of Maximum Lift for a Pitching Airplane Model and Comparison with Flight Results
Author: Paul W. Harper
Publisher:
Total Pages: 704
Release: 1948
Genre: Airplanes
ISBN:

Apparatus was developed which utilized a pitching airplane model to determine maximum wing loads as a function of the rate of change of angle of attack. In order to evaluate the pitching-model technique, the maximum lift coefficient was determined as a function of the rate of change of angle of attack over a Mach number range from approximately 0.2 to 0.6 in wind-tunnel tests of a 1/20-scale model of a conventional single-engine fighter airplane and was conpared with existing flight data of this airplane. The wind-tunnel and flight results were found to be in good agreement.

Report

Report
Author:
Publisher:
Total Pages: 1180
Release: 1957
Genre: Aeronautics
ISBN:

Velocity Distribution on Wing Sections of Arbitrary Shape in Compressible Potential Flow

Velocity Distribution on Wing Sections of Arbitrary Shape in Compressible Potential Flow
Author: Lipman Bers
Publisher:
Total Pages: 700
Release: 1950
Genre: Aerofoils
ISBN:

The method of computing velocity and pressure distributions along wing profiles under the assumption of the simplified density-speed relation, outlined in NACA Technical Note 1006, is extended to the case of a nonsymmetrical profile and a flow with circulation. The shape of the profile, the speed of the undisturbed flow, and a parameter determing the angle of attack may be prescribed. The problem is reduced to a nonlinear integral equation which can be solved numerical by an iteration method. A numerical example is given.