Note: This book is highly technical and requires a good understanding of mathematics and engineering concepts.
From the author’s preface: The aim of this book is to provide future designers and students of aeronautical engineering with a practical guide to be used in the study of static and dynamic stability on sailplanes and small aircraft. The proposed calculating method is better suited for sailplanes because of their shapes and good aerodynamics. The effect of propellers on the surfaces is a source of errors in the evaluation of moment contributions and derivatives, thus a correct evaluation of them is very difficult.
Another problem that is difficult to solve is the evaluation of a lot of theoretical data, which is due to the aeroelastic properties of aircraft. As a matter of fact, we consider aircraft as if they were not deformable but we all know that structures are elastic. If we think about it the torsion of sailplanes and the bending of wing and fuselage at maneuverable speed are relevant owing to the peculiar structural slenderness. As for the coupling of the lateral and directional forces and the consequent motions, we must consider that the static approach is a limited one. A better approach to this problem can be made by considering a dynamic analysis. Sample calculations are intended to explain further the pragmatic approach used in writing the chapters of this book. I hope that the matter so treated can provide a panoramic view of this part of the design of sailplanes and small aircraft: aircraft stability.
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