Andrew Chaplin wrote:
Paul J. Adam wrote:
Peter Stickney wrote:

There are only 3 countries which have built and
flown Supersonic Heavy Interceptors. The U.S.,
the Soviet Union, and Canada. That's danged good.

What about the Tornado F.3?

And the English Electric Lightnings?

I could be wrong, but it appears to me that Peter was referring to
the YF-12A, MiG-25, and Canada's White Elephant (Arrow).

-Mike Marron