Perhaps the QC bid was technically better. My recollection, however, is that the government of the day (Brian Mulroney was PM) admitted that the Bristol Aerospace (Winnipeg) bid was better or, at least, lowest price/fully compliant but that the contract was awarded to Canadair (QC) because Montreal was designated as Canada's aerospace centre. This designation was, partially, in response to the final failure of QC's auto manufacturing capability. There was a perception that everything was migrating to Southern Ontario and the Montreal, especially, was dying.