Here's an extraordinarily informative article from Air Force Magazine discussing new reveals from Boeing about their Valkyrie hypersonic aircraft design. A model with new details was displayed at the American Institute of Aeronautics and Astronautics convention in San Diego recently. In the course of the article, you get fascinating comments from a top (non-Boeing) industry expert about the engineering challenges of hypersonic flight and about how Boeing seems to be addressing them. Gives a good sense of the current state of the art. https://www.airforcemag.com/boeing-updated-valkyrie-reveals-evolving-hypersonic-design/ And a couple of tweets from an Aviation Week and Space Technology reporter with photos of the model https://twitter.com/AvWeekGuy/status/1478489605972193280 https://twitter.com/AvWeekGuy/status/1478491208452227072 Boeing render Please Register or Log in to view the hidden image!