The U.S. Air Force will invest $235 million to help a start-up manufacturer build a jet with a blended-wing body that officials say could provide greater range and efficiency for military tankers and cargo planes and perhaps eventually be used to carry airline passengers.
We have been trying to make flying wings work for decades, since the jet engine I think. The stealth bomber is one, but afaik they are horribly unstable.
What makes this different from any other attempt?