the principles of the design, construction and operation of model and small racing craft in the light of modern knowledge of aerodynamics and hydrodynamics, with notes on “wingsails”
by Lt.Col. C.E. Bowden.
London, Percival Marshall, 1950.
3rd, revised edition. 130 pages. illustrated with photos and drawings.
good clean condition hardback in the original pictorial boards, with some loss of paper covering to the spine.