Aviation enthusiasts can tell if it's an Airbus A220 taking off just by the distinctive sound it makes. This howling sound is sometimes described as sounding something like a whale, and is indirectly ...
bobsurgranny on MSN
Watch the Airbus A400M sing as it flies past
The Airbus A400M is one of the most distinctive aircraft in the sky, and its unusual humming sound is a big reason why.
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