Not that I was one of course, alt given in feet up-until 3,000ft?
Depends on the Transition Altitude in effect for the area. In N. America it's 18,000ft.
As far as I am aware no RAF pilot or nav or shelf stacker has ever been elected chairman of MENSA, whereas one RAF Plod Cpl was some years ago.
Sure that wasn't the dog?
16B