[caldrail]

The F-15 thing was a complete different thing. I've spoken to a an engineer about taht and he said that planes these days have aerodynamic fuselages as well, so its not just the wings that keep them up.

Early planes had no such structure. But its nice to know what happened.

Some modern planes are designed that way. There were early aircraft designed to generate lift from a fuselage. You could probably name one or two yourself (and I'm not specifically including 'flying wings' that don't have a fuselage structure). It is possible to achieve a measure of lift from almost any fuselage. I used to do just that in steep turns. It isn't much, but it means you don't have to rip the wings off to maintain height. You could argue it was the thrust line that was helping - you'd be right - but every little bit helps.