"look at the distance those roof trusses are supporting over a single span. Amazing!"
Well, its designed for the 385ft wingspan and looks form the picture to have not a great deal of extra spave which puts the span at around 400ft. Meanwhile, here in Bristol at Filton we have the Brabazon hangar which (from quite search) has 3 bays with a total length of 352m which means around 350 feet per bay ... and that's been around for ~60 years.I remember when the Concorde exhiit (shortly to re-opem a new museum) was just outside the hanger and on a tour there the guide explained that one of the bays was being used by a company the painted aircraft as they could fit anything current inside ... at the time they had a 747 which seemed a little dwarfed by the hangar
Biting the hand that feeds IT
