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Why a Mach 5 passenger plane is a crazy idea that might just work



Almost two decades since Concorde retired, interest around supersonic travel has been picking up pace, and several super-fast planes are under development. Airlines seem interested: United has already committed itself to offering supersonic routes as early as 2029.k3EKNuJ9x3o Why a Mach 5 passenger plane is a crazy idea that might just work



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