Publisher's Synopsis
Excellent book from 1912!HOW TO BUILD A 20-FOOTBI-PLANE GLIDERA Practical Handbook on the Construction of a Bi-planeGliding Machine, Enabling an Intelligent Readerto Make His First Step in the Field of Aviation;With a ComprehensiveUnderstanding of the Principles Involved.BYALFRED POWELL MORGANEditor Mechanical and Electrical Department of the"Boy's Magazine."