The empennage reference brings to mind the days of study my late Dad spent in the National Library of Scotland (during the 80's) trying to discover why he survived and colleagues flying the earlier Halifax did not. It was down to the original vertical stab(s) configuration which was scaled up from traditional HP design at the time - and faulty when the counterbalance jammed the rudders. But after many accidents modified amidst much security. Hence I am here
Back on thread - I think the cutaway sketch looks more European than US..
