The flying wing design is inherently stealthy to radar, however the maneuverability is sacrificed.

Historically speaking stealth by design & not by accident was documented by a Russian mathematician who developed formulas to calculate the radar cross section of a 2 dimensional object.

The Russians didn’t use it because the calculations were to large for the time before computers. Later a Lockheed Skunk Works engineer read the Russian mathematicians published work and pitched it to his boss. Lockheed ran with it and with the advent of computers the calculations could be completed and the result was the F-117.

Northrop developed systems to determine the radar cross section of 3 dimensional objects which led to the B-2 but they used the YB-49 as a starting point. Development of the YB-49 documented the low radar cross section of the design but also the inherent instability.

http://en.wikipedia.org/wiki/Northrop_YB-49

The Germans had many very talented generals and scientists. Lucky for us Hitler wanted to run things on his own rather than listening to the experts. He never got the concept of delegating. Kind of like Obama.

Don’t forget one of the ultimate ironies of WWII – many of the brilliant scientists responsible for the atomic bomb (Einstein, Oppenheimer, etc) were German jews chased out of Germany by Hitler.

It’s a mistake to label the Horton designed ‘flying wing’ as a stealth design. It’s purpose was to achieve a very long combat radius; any stealthy capability was a biproduct of it’s primary purpose: hitting the US directly from Germany,(keep in mind that radar was in it’s infancy during WWII). The Nazi’s wanted to deliver an atomic device over NYC and the Horton brothers were attempting to design an aircraft with a 10,000 mile combat radius; sufficient to attack NYC and certainly unheard of 60 years ago.

Xavier, while you’re factually correct in that a Russian scientist, Petr Ufimtsev, initially developed the equations that Lockheed would later use in developing “Have Blue”, his work was conducted in the early ’60s, 20+ years after the Horton brothers had successfully flown their flying wing. Furthermore, the Soviets dismissed Ufimtsev’s work, not because mother Russia lacked the computational hardware, but because they lacked the foresight to realize it’s value and thus ‘allowed’ it to be published. An American engineer, Kelly Johnson, unencumbered by bureaucratic shortsightedness, realized it’s value and the rest, as they say, is history.