 By 11 August 1958 , Pearkes requested cancellation of the Arrow , but the Cabinet Defence Committee ( CDC ) refused . Pearkes tabled it again in September , and recommended installation of the Bomarc missile system . The latter was accepted but , again , the CDC refused to cancel the entire Arrow program . The CDC wanted to wait until a major review on 31 March 1959 . They cancelled the Sparrow / Astra system in September 1958 . Efforts to continue the program through cost @-@ sharing with other countries were then explored . In 1959 , Pearkes would say the ballistic missile was the greater threat , and Canada purchased Bomarc " in lieu of more airplanes " . 
