viii, 138pp. Blue cloth-covered boards, white titles on front and spine. Sun faded spine, bumped ends. Text block edges starting to fox. Internally neat, clean, bright and tight. Dust jacket has very light shelf wear, chipping to edges, mirrors book damage, price clipped. 8vo.
An early book on aeroplane construction - with chapters on Elementary Mechanics & Physics; Principles of Inclined Planes; Air & Its Properties; Principles of the Aeroplane; The Curves of the Aeroplane; Centres of Gravity, Balancing, Steering; The Propeller; The Helicopter; The Wing Propeller; The Engine; The Future of the Aeroplane. Illustrated with black and white diagrams.
