Since the 1960s.
I believe the vice-chief of defence staff evaluated the system a couple of years ago, but I'd have to research exactly when that was.
On May 14th, 2007. See this statement in context.
Director, Flight Safety, Department of National Defence
Since the 1960s.
I believe the vice-chief of defence staff evaluated the system a couple of years ago, but I'd have to research exactly when that was.
See context to find out what was said next.