Correlation of Flight and Analog Investigations of Roll Coupling
Correlation of Flight and Analog Investigations of Roll Coupling

Author: Joseph Weil

Publisher:

Published: 1956

Total Pages: 26

ISBN-13:

DOWNLOAD EBOOK

A brief review of NACA flight experience relating to the roll-coupling problem is presented. Conditions rated by pilots as intolerable, marginal, and good are discussed and correlated with calculated results. A suggested flight test procedure for roll-coupling investigations and a discussion of several other items of general interest are also presented.

Coupling Dynamics in Aircraft
Coupling Dynamics in Aircraft

Author: Richard E. Day

Publisher:

Published: 1997

Total Pages: 76

ISBN-13:

DOWNLOAD EBOOK

Presents archival anecdotes and analyses of coupling problems experienced by the X-series, Century series, and Space Shuttle aircraft. The three catastrophic sequential coupling modes of the X-2 airplane and the two simultaneous unstable modes of the X-15 and Space Shuttle aircraft are discussed. In addition, the most complex of the coupling interactions, inertia roll coupling, is discussed for the X-2, X-3, F-100A, and YF-102 aircraft. The mechanics of gyroscopics, centrifugal effect, and resonance in coupling dynamics are described. The coupling modes discussed are interacting multiple degrees of freedom of inertial and aerodynamic forces and moments. Various solutions for coupling instabilities are discussed.

Stability and Control of Airplanes and Helicopters
Stability and Control of Airplanes and Helicopters

Author: Edward Seckel

Publisher: Academic Press

Published: 2014-05-10

Total Pages: 523

ISBN-13: 148322015X

DOWNLOAD EBOOK

Stability and Control of Airplanes and Helicopters deals with aircraft flying qualities that determine the stability and control of airplanes and helicopters. It includes problems based on real aircraft, selected to represent the gamut from simple to complicated, and from conventional utility designs to futuristic research types. Many of these problems involve comparison of theory and experiment to demonstrate their mutual relationship. Comprised of 25 chapters, this book begins with a discussion on the aerodynamics of the component parts related to the lift and moment characteristics of an airplane, including wings and associated accessories; bodies such as fuselages, nacelles, and tip tanks; and control surfaces. The reader is then introduced to some mathematical techniques for linear differential equations; steady flight at different speeds; and stick force and control-free stability. Subsequent chapters focus on flaps and high-lift devices; power and compressibility effects; and the manner in which the aircraft responds to the application of control. Aeroelasticity and longitudinal equations of motion are also examined. This monograph is intended for undergraduate and graduate students taking modern engineering courses.

Fifty Years of Flight Research
Fifty Years of Flight Research

Author: David F. Fisher

Publisher:

Published: 1999

Total Pages: 526

ISBN-13:

DOWNLOAD EBOOK

A bibliography of Technical Reports from Dryden Research Center, 1946-1996. Dryden was a National Advisory Committee for Aeronautics (NACA) facility from to 1946-1958, when NACA became NASA (National Aeronautics and Space Administration). This bibliography encompasses both NACA and NASA publications. Illustrated with diagrams and photos. Black and white version.