F18c Sonic Boom at Hillsboro Airshow

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.

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TreverW says ... on Monday, Aug 31 at 8:50 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.

OrtRomFam says ... on Sunday, Aug 30 at 11:50 PM

Wow, believe or not, this was heard, not exactly as a sonic boom, but as a different jet sound, up in Vancouver, WA.

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