Avro CF-100 Canuck / RCAFAvro CF 100 airplane model. Originally designated at the XC 100, A. V. Roe Canada Ltd. was officially approached towards the end of 1945 to design an all weather fighter. The CF 100 was the 1946 brainchild of Edgar Atkin, then Chief Engineer, and John Frost, a designer from de Havilland in England who had worked on the Vampire and 108 Flying Wing project (Frost was also the key player in the Avrocar project) Initial armament requirements were for four