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The Projectile Development Establishment was set up at Halstead.
The first director was Dr A. D. Crow, who had been Director of Ballistic Research at the War Office.
1940 Moved to Aberporth in Cardiganshire.
1945 Work on rocket research and development was continued at the renamed Guided Projectile Establishment at Westcott, Buckinghamshire.
1958 renamed the Rocket Propulsion Establishment.
1959 Responsibility passed to the Ministry of Aviation