If you want to know more, their is an interesting film with Dan Ackroyd about it. I just realised it's on YouTube for free http://www.youtube.com/watch?v=9PMnlnqRex4 (it was created by the gov't of Canada, and probably isn't available through other channels. I'm in Oz, and can't get it here through iTunes).

It is a very interesting look at this bit of Canadian and aviation history, and the conspiracy theory that the program was cancelled due to political pressure from the US.