Excerpt from A Test of Slender Wooden Struts for Aeroplanes: A Thesis The diagonal members of the truss are made of piano wire. Two wires being placed in each panel so that compression occurs only in the verticals and upper and lower chords, (see figuret3). The calculations of the stresses in the members of a truss of this character is easily accomplished 'by well recognized engineering methods, once the loading on the planes is determined. The loading caused by the air pressure which furnishes sustension for the machine, owing to the scarcity of data and formulative conditions of the theory of aerodynamics is more difficult to fix. 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.

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