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iv, 145, [1]} p. Includes: illustrations, diagrams. Numerous fold-out diagrams. War Office Code No. 7481. This was derived from the Military Engineering Volume III, Part II pamphlet No 12 from 1942. It represented the state of the art, state of knowledge and the state of practice at the end of the Second World War through the beginning of the Korean War era. From Wikipedia: "The Bailey bridge is a type of portable, pre-fabricated, truss bridge. It was developed by the British during World War II for military use and saw extensive use by both British and the American military engineering units. A Bailey bridge had the advantages of requiring no special tools or heavy equipment to construct. The wood and steel bridge elements were small and light enough to be carried in trucks and lifted into place by hand, without requiring the use of a crane. The bridges were strong enough to carry tanks. Bailey bridges continue to be extensively used in civil engineering construction projects and to provide temporary crossings for foot and vehicle traffic. Donald Bailey was a civil servant in the British War Office who tinkered with model bridges as a hobby. He presented one such model to his chiefs, who saw some merit in the design. A team of Royal Engineer (RE) officers was assembled at the Military Engineering Experimental Establishment (MEXE), in Barrack Road Christchurch, Dorset, in 1941 and 1942; among them were Robin Foulkes, Darrell Herbert, John de Waele, and Bill Buckle, all R.E. subalterns at the time. In the course of development, the bridge was tested in several formats, e.g., as a suspension bridge, and as a "stepped arch" bridge, as well as the flat truss bridge which became the standard. The prototype of this was used to span Mother Siller's Channel which cuts through the nearby Stanpit Marshes, an area of marshland at the confluence of the River Avon (Hampshire) and the River Stour, Dorset. It remains there ( WikiMiniAtlas 50°43? 31? N 1°45? 44? W? / ? 50.7252806°N 1.762155°W? / 50.7252806; -1.762155) as a functioning bridge. Bridges in the other formats were built, temporarily, to cross the Avon and Stour in the meadows nearby. After successful development and testing, the bridge was taken into service by the Corps of Royal Engineers and first used in North Africa in 1942. A number of bridges were available by 1944 for D-Day, when production was accelerated. The US also licensed the design and started rapid construction for their own use. Bailey was later knighted for his invention, which continues to be widely produced and used today. [1] The original design however, violated a patent on the Callender-Hamilton bridge. The designer of that bridge, A. M. Hamilton successfully applied to the Royal Commission on Awards to Inventors. The Bailey bridge however had several advantages over Hamilton's design. For example, damaged parts could not be replaced quickly on the Callender-Hamilton bridge, an essential requirement for military use. The Callender-Hamilton bridge was modified by the London County Council engineers' department in the design of three emergency bridges which were erected across the River Thames in 1940. Damaged parts of these could be quickly replaced. Experience gained in this work contributed to the development of the Bailey Bridge. Hamilton was awarded £4, 000 in 1936 by the War Office for the use of his early bridges and the Royal Commission on Awards to Inventors awarded him £10, 000 in 1954 for the use, mainly in Asia, of his later bridges. Lieutenant General Sir Giffard Le Quesne Martel was awarded £500 for infringement on the design of his box girder bridge, the Martel bridge." Good. Cover has some wear and soiling. Pencil erasure residue on contents page. Reprint. Reprinted with Amendments (Nos. 1 to 5).
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