Central Experimental and Proving Establishment
Motto: Experto Crede (Believe one who knows from experience)
From the earliest days of the Air Board and the Canadian Air Force, test and development work was carried on at Ottawa Air Station (at Rockcliffe and Shirley's Bay) where, eventually, a special flight was formed for this purpose. The outbreak of war greatly increased the demands for test flying for research and experiment, and, as a result, the flight was expanded into the Test and Development Establishment in November 1940. Six years later its name was changed to Experimental and Proving Establishment. On 1 September 1951 the Central Experimental and Proving Establishment was formed by the amalgamation of the E. & P.E. at Rockciffe, the Winter Experimental Establishment at Edmonton, and the R.C.A.F. (National Research Council) Unit at Arnprior. Headquarters of C.E. & P.E. were at Rockcliffe, with detachments at several sites across Canada. In 1957 CEPE was moved to RCAF Station Uplands, a move necessitated by the longer runways required for testing new jet aircraft.