Aviation and Aeronautical Engineering

ved of the greatest value in effectually_ stoppmg aoo,d~ on this score. The tauks are ma.de of thin sheet metal wit.I! an external coating of rubber about ¼ in. thick. On being struck by a bullet which pierces both tl1e robber and metal ,valls of tbe tank,the robber springs bucl. into place and thus closes the aperture. The quality of the rnbber cover of a bnllet-pl'OOf tank must be the opposite of that. employed for gnsoline-resisting hose, in that the rubber on the bullet-proof t8.Dk must tend to S\Vell in ga

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Table of Contents:

Chapter 1