Stability in Aviation: an Introduction to Dynamical Stability as Applied to the Motions of Aëroplanes

Abstract

THIS book, in common with other published mathematical papers of Prof. Bryan, contains much original work. It is well worth study, not merely by mathematicians, but also by all interested in the practice of aviation and in the design of flying machines. In the preface and introduction the author indicates his reasons for undertaking this investigation, and his desire to make the book practically useful. It will be universally agreed, and the conclusion is confirmed by experience, that the greatest difficulties which must be surmounted in connection with aerial navigation arise from lack of exact knowledge of the principles of dynamical stability as applied to the motions of aeroplanes. Up to date it is probably correct to say that individual skill—often apparently almost instinctive—on the part of airmen, and their immediate readiness to act when sudden emergencies arise, play the greatest part in the safe conduct of aërial machines. In fact, having regard to endless possible variations in the conditions which are, and will be, encountered in aërial navigation, these personal qualities will always remain essential to success. On the other hand, there can be no dispute but that substantial advantages may be gained from the results of work done by mathematicians like Lord Rayleigh, Sir George Greenhill, and Prof. Bryan.

Stability in Aviation: an Introduction to Dynamical Stability as Applied to the Motions of Aroplanes.

By Prof. G. H. Bryan Pp. xi + 192. (London: Macmillan and Co., Ltd., 1911.) Price 5s. net.