Love the photos Rog! The 1-11 and the Caravelle! I'd forgotten about the rear ventral stairs on them and did my last flight on a 1-11 (incl rear exit) at LGW in a Dan Air example having flown in from Milan Malpensa in 1993-ish, and an Air Inter Caravelle a few years before that on an internal French flight. On all, the passage way that housed the ventral stairs wasn't exactly wide if memory serves.