No. 428 Squadron RCAF
No. 428 Squadron RCAF was the ninth long-range heavy bomber Article XV squadron formed overseas during the Second World War at RAF Dalton in Yorkshire, England on November 7, 1942. The squadron was initially assigned to No. 4 Group RAF. With the creation of No. 6 Group RCAF, the squadron was reallocated on January 1, 1943 operating with it until April 25, 1945.
424 Transport and Rescue Squadron
No. 424 Squadron RCAF was formed at RAF Topcliffe, North Yorkshire in on 15 October 1942, as the sixth RCAF Overseas bomber squadron, first being allocated to No. 4 Group RAF, initially equipped with the medium bomber Vickers Wellington Mk IIIs (later Mk Xs). It began operations on 15 January 1943, having joined No. 6 Group RCAF seeing moves to RAF Leeming, and then RAF Dalton. By the end of April 1943, 424 had bombed Frankfurt, Stuttgart, Mannheim, Bochum, Hamburg, Cologne, Essen, and took part in a third trip to Duisburg.