Quoting LeanOfPeak (Reply 44):
Quoting Starlionblue (Reply 42):
Hmmm, but the X-15 cheats! The thing needs to take off and land under it's own power, wouldn't you say?
Far more relevant than that is that the X-15 is a rocket.
Oh yes indeed. Non-airbreathing. But then again the X-15 is a winged craft... On the other hand even capsules like Apollo generate some lift. The argument could go on for a while
There is something I still don't get with regards to that arguement: Where is the line between a lifting body and a flying wing? It is the cross section or leading edge sweep or aspect ratio? Or is it an arbitrary parameter like the 80m box for VLA's? Or is it just a preception, i.e. people think flying wings should only be wider than their length??
Imagine a plane with a 75-degree delta wing but the thickness ratio being 20% of the chord. Imagine that within the thickness volume is where the payload and fuel is kept. What is that classified as?