Boeing unveiled plans for what could be the world’s first hypersonic airliner, a sleek, futuristic-looking craft that the company said would be capable of flying five times the speed of sound

Boeing unveiled plans for what could be the world’s first hypersonic airliner, a sleek, futuristic-looking craft that the company said would be capable of flying five times the speed of sound. via @NBCNewsMACH https://t.co/hYrBUoTgGr

— NBC News (@NBCNews) June 29, 2018

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