Breaking The Sound Barrier



July 7, 1999 – Off the coast of Pusan, South Korea

An F/A-18 Hornet assigned to Strike Fighter Squadron One Five One (VFA-151) breaks the sound barrier in the skies over the Pacific Ocean.  ~ Wikipedia

The cloud you see is called a vapor cone. These are typically observed as an aircraft approaches transonic velocity. Water in the atmosphere then condenses becoming visible.

You can read much more about vapor cones at wikipedia.


Image Credit

Photo by Ensign John Gay, U.S. Navy is Wikimedia Public Domain


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  1. avatarJoseph Frey says

    When I was out at sea on the US Navy’s aircraft carrier USS Eisenhower a F-14 from the 103 “Jolly Rogers” Squadron flew screaming by and as it broke the sound barrier it created a vapour cone. It was an awe inspiring sight.

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