Well,
NASA is big on them to improve efficiency, and the Boeing's
sub scale demonstrator, the X-48B continues apace, with the development team looking at stall characteristics, and the Europeans are
conducting validation studies on a BWB with 1000 passengers. (
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It will require rather a lot of validation and test in both structures and control surfaces.
In any case, here is some picture pr0n:
Podded EnginesMore advanced serpentine duct arrangement.Structural Test ItemX-48 B
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