An F18c jet fighter breaks the sound barrier right in front of the audience during the Oregon International Air Show, August 29, 2009. The sonic boom was quite a surprise to everyone.
F18c Sonic Boom at Hillsboro Airshow
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says ... on Monday, Aug 31 at 12:50 AM
Wow, believe or not, this was heard, not exactly as a sonic boom, but as a different jet sound, up in Vancouver, WA.
says ... on Monday, Aug 31 at 9:50 AM
Yeah, thanks. I guess the pictures and descriptions I saw when I looked up sonic boom led me to believe that was what happened. But this was not actually a sonic boom. Sorry for the confusion.

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