Author: Harry Egerton Wimperis

Publisher:

Published: 2015-07-26

Total Pages: 146

ISBN-13: 9781331999386

Excerpt from A Primer of Air Navigation Prior to the year 1919 there was little occasion for long-distance air navigation: the subject has, however, become one which requires study, and the remarkable transatlantic flights of 1919 have shown that the art of sea navigation can with suitable modifications be applied to the air. The purpose of this little book is to show in simple language how this can best be done and how when sea-going methods fail others can be devised to take their place. The net result is that although the long experience and tradition of sea navigators forms the convenient basis on which air pilotage and navigation is founded, the latter have individuality enough to substantiate a claim for separate treatment. As at sea, so in the air, the navigator's duty is to keep his dead reckoning position and, as opportunity offers, to check this position by such other methods as are available. This D.R. work is equally necessary in Air Pilotage and Air Navigation. The checks in the case of the former are references to maps and the recognition of the country flown over; in the latter they are the methods of directional wireless and astronomical observation. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.