Three firms are vying to be the first to reintroduce commercial supersonic flight in the next decade.
from BBC News - Home https://ift.tt/2L9Symx
from BBC News - Home https://ift.tt/2L9Symx
Is killing the boom the key to supersonic air travel?
![Is killing the boom the key to supersonic air travel?]()
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July 20, 2018
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