 All of Bomber Command was to fly on the raid and practice raids on areas similar to Peenemünde were made; margins of error of up to were initially recorded — by the last this was down to .The primary objective was to kill as many personnel involved in the research and development of the V-weapons as possible, by bombing the workers' quarters.Secondary objectives were to render the research facility useless and "destroy as much of the V-weapons, related work, and documentation as possible".