Danny, you should know that tailwheel aircraft nose over at the drop of a hat. Even with that Hastings you can visuaise a vertical line from where the bottom of the wheels are going behind the main spar which is about the CofG.
When I lived at Aldergrove there were innumerable Spitfire 22s tentpegged into the ground when they had hit a patch of Irish bog.
If you're not carefull I'll tell you about National Service training in Rhodesia in the fifties.