Boeing unveils a spiritual successor to the SR-71 Blackbird hypersonic spy plane concept, that could travel at 3,800mph.
The SR-71 was the world’s fastest and highest-flying operational manned aircraft.
Boeing’s concept model was revealed at the American Institute of Aeronautics and Astronautics forum.
Lockheed Martin’s planned SR-72 has a similar design to the Boeing’s craft.
Images credit Boeing