United States. National Advisory Committee for Aeronautics

Franklyn B. Fuller

Edmund E. Callaghan

Willard D. Coles

Ray H. Wright

C. H. Wilts

Edward W. Perkins

Isadore L. Drell

Lewis Laboratory Staff

Max. A. Heaslet

Frank E. Belles

Leland H. Jorgensen

Virgil S. Ritchie

Albin O. Pearson

Simon C. Sommer

Investigation of the Drag of Various Axially Symmetric Nose Shapes of Fineness Ratio 3 for Mach Numbers from 1.24 to 7.4

B. Jeanne Hyett

Calculations of Chandrasekhar's X- and Y-functions and Their Analogs for Noncoherent Isotropic Scattering

Harvard Lomax

Max A. Heaslet

The problem of the build-u of lift on two- and three-dimensional wings flying at high speeds is discussed as a boundary-value problem for the classical wave equation. Kirchhoff's formula is applied so that the analysis is reduced, just as in the steady state, to an investigation of sources and doublets. Some simple applications of this method are considered, including the determination of the starting lift of a three-dimensional wing and the potential functions for some types of unsteady vortex motion.

Basic Concepts

Three-dimensional, Unsteady-lift Problems in High-speed Flight

Franklyn B. Fuller

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