Well, I once wrote a short story in which a passenger took the commands of a Boeing 777, after hijackers killed both pilots. He had extensive experience with MS Flight Simulator, you see, so he knew exactly how hard you could push it without tearing the wings off. He flew it down into the Grand Canyon, then under the Golden Gate bridge, then headed for a disused airstrip in Kamchatka.

But he had never bothered learning to land the thing.

_{It is rightly acknowledged that people of faith have no monopoly of virtue - Queen Elizabeth II}

A barrel roll is supposedly  a stress free manouevre, so it should be okay.

Concorde could barrel roll.

keep to the Fen Causeway