::I'm sorry being too fast whith the speed statement. Never heard about the Convair CV-800, sorry to say. But I hope the photo is worth something reguarding my "special handeling" contribution. Some of the stated issues may very well apply to some other obsolete aircraft aswell, especially the B 707. My rather deep knowlidge about Boeing 720 is (of course) not that I've chosen "Boeing 720" as signature but that the captain on the photo is my dad. Especially after he became captain in 1976, I used do follow with him a couple of times evry year. He was posted at EKCH/CPH Copenhagen Kastrup airport and flew for the danish charter company "Conair" (or "Consolidated Air of Scandinavia") usually to the Mediterranian but also to London, Paris and Salzburg. Until late autumn 1987 he flew Boeing 720 B. Picture shows a Boeing 720A though. In the start he flew DC7 props. And after the Boeing 720 era Airbus A300 and A320. But only the Boeing 720 is a subject of high interest to me. Best reguards