Originally Posted by
pr00ne
Quite apart from a lot of what is appearing here sounding more than a little fanciful, I would imagine that if anyone barrel rolled around any intercept target, let alone a civil airliner, let alone Concorde, it would be the last flight in a military aircraft they ever made...
Actually a barrel roll is a great lag maneuver in case one overshoots the intercepted target. Misjudge the closure speed and you can still save the intercept by doing a barrel roll. If you do it early enough, you might even be able to maintain radar lock.