HUNTSVILLE, Ala. (AP) - The Air Force is providing additional details about twin sonic booms that created a stir in parts of north Alabama and southern Tennessee last week.
The military said Tuesday the two booms were most likely caused by F-22 and F-16 fighter jets based in Marietta, Ga., at the Lockheed Martin Corp. aircraft plant.
An F-22 was on a supersonic test flight being trailed by another fighter when the booms occurred last Thursday. The Air Force said the flights are conducted over Middle Tennessee, but the sound traveled as far as the Tennessee Valley region.
The planes fly at an altitude of more than eight miles to reduce the noise.
(Copyright 2009 by The Associated Press. All Rights Reserved.)
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