Haynes, Yeovil, 1st ed., 2011. 160 pp., numerous cold., + b&w photo-ills., + ills. Laminated boards ; 27 x 21cm. FINE. When the Second World War broke out, aeronautical engineer Barnes Wallis considered what he could do to shorten the war. His answer was to develop a range of air-delivered weapons to attack enemy targets that until then were invulnerable to conventional bombs and bombing. This led to his ‘bouncing bombs’ which were dropped by the Lancasters of 617 Squadron on 16-17 May 1943 over the Ruhr dams in Germany, smashing open the Mohne and Eder dams. The author applies the familiar Haynes Manuals treatment to provide rare insights into the wartime worlds of specialist bomb design and development, and their delivery by the RAF. Through rare archive photographs and technical drawings, and specially commissioned artwork, he re-tells the legendary ‘Dam Busters’ story through the medium of the technology that made it all possible. UNCOMMON.