The Air Defence Experimental Establishment ( ADEE ) was a civil agency run by the British War Office , the civilian side of the British Army . It was primarily tasked with developing sound ranging of enemy artillery , and the development of anti-aircraft weapons and techniques, notably searchlights .
3-886: It was originally formed as the Searchlight Experimental Establishment (SLEE) at Woolwich in 1917 out of a group within the Experimental Section of the Royal Engineers . In 1923 it moved to RAF Biggin Hill and in 1924 was renamed the Air Defence Experimental Establishment. In 1939 it moved to Christchurch, Dorset . In 1941 it was joined by another development group known simply as the "Army Cell" that had been working on radar systems at Bawdsey Manor . The two groups were merged to become
6-761: The Air Defence Research and Development Establishment (ADRDE). The radar groups from the Air Ministry , by this time known as the Telecommunications Research Establishment (TRE), moved to nearby Swanage that same year. This United Kingdom military article is a stub . You can help Misplaced Pages by expanding it . This article on military history is a stub . You can help Misplaced Pages by expanding it . Searchlight Experimental Establishment The Searchlight Experimental Establishment , or SLEE ,
9-473: Was a Royal Engineers research group who studied the improvement of searchlights and other anti-aircraft systems like sound locators and predictors . The SLEE initially formed up at Woolwich Common in 1917 during World War I as a small group within the Corps of London Electrical Engineers to research anti-aircraft artillery and searchlights. In 1919, they took over sound locator development and began
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