Boom Supersonic is closer than ever to its goal of introducing supersonic commercial aviation back tot he global stage – the Colorado-based startup unveiled the final design of its XB-1 demonstrator aircraft today. This is a fully functional prototype airplane, which will help the company test out the flight capabilities and systems that will eventually make its Overture supersonic commercial passenger aircraft a reality.

XB-1 is a scaled down version of what Overture will be, lacking the passenger cabin that will offer business-class style amenities to commercial passengers. It does have a cockpit for the test pilots who will help Boom put its design through its paces beginning in 2021. It measures 71-feet long, and its propulsion is provided by three GE-made J85-15 engines that

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