## A modern view and appreciation of the works of Theodore Theodorsen, physicist and engineer |

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### Contents

Introduction | 17 |

About My Father | 49 |

Selected Reprints ot Theodorsens Chief Work | 371 |

Copyright | |

### Common terms and phrases

advance ratio aerodynamic aeroelasticity aileron airfoil airplane amplitude angle of attack angular axial axis boundary calculated center of gravity chord circle COMMITTEE FOR AERONAUTICS constant cowling curl curve degrees of freedom determined drag effect engine experimental factor flow fluid flutter speed force frequency ratio function fuselage given Graph helix horseshoe infinite infinity integral Kutta condition Langley Langley Field leading edge lift lift coefficient lift force mass coefficient method motion NACA NATIONAL ADVISORY COMMITTEE obtained parameters plane potential pressure problem quantity radius radius of gyration reference REPORT NATIONAL ADVISORY Reynolds number shown in figure sinh solution span stagnation point structural damping surface term tests Theodore Theodorsen theoretical THEORY OF PROPELLERS tion torsional transformation turbulence two-dimensional variable velocity potentials vertical vibration vibrations per minute vortex vortex tube vortices wake WIND-TUNNEL Wing Sections zero