pfffff Jack Northrop....
I have two words (and a number). Horton Ho IX.
Look!
Look at it! ririririririrriiiiirrrr!
Horton flew.
Horton was a wing......
Jack Northrop was an American.
He "borrowed" German research.
He didnt give it back.
And he didnt ask if he could borrow it either.
Yes, Jack Northrop was American & I'm sure he was proud of it. His flying wings also flew. He didn't need to ask permission from anyone & AFAIK he didn't borrow his ideas from German research.
I would like to point out that I am British, not American. A lot of the more revolutionary post-WWII British aircraft WERE based on German research, including the DH.108 Swallow which was a flying wing. This was directly based on a captured Me 163 Komet.
http://1000aircraftphotos.com/APS/3129.htmI'm sure the same can be said for the other Allies & I'm not trying to take anything away from the brilliance of those German aircraft designers.
A more interesting subject might be: Who first thought of the "canard" concept? As I recall, the Wright Flyer had this feature which was not the first time it had been used. Have you ever seen the Miles Libellula?
http://www.jaapteeuwen.com/ww2aircraft/html%20pages/MILES%20M39B.htmPS. Would you call a hang glider a flying wing?
http://a4esl.org/q/h/mc-jb-skysports.html