Just reusing designs that have been around a long time.
I feel safe now.
Wel then, we might as well close the patent office because everything that could possibily be invented has already been invented.............. ;o)
Boeing discovers the folding wing. Grumman invented it for the Navy in the 1930s.
Sometimes old ideas need a re-look since new technology can make them work. The basic idea of the B2's shape is very old.
Yeah, the "props" on the Fozzie were a hot ticket on one of their concept planes a few years ago - they were killed by the apparently unresolveable issue of excessive noise.
Cute names though. ;)