If you’re old enough to remember the Concorde, then startup Boom‘s plans to bring supersonic flight back to commercial passenger air travel is huge. Now Boom is one step closer, as it reveals the XB-1 Supersonic Demonstrator, a 1/3-scale prototype of its Boom supersonic passenger aircraft, which will be doing its first supersonic test flights … Continue reading Boom shows off its XB-1 supersonic demonstration passenger airliner