April 14, 2004 (by Lieven Dewitte) -
People in parts of west Texas may be hearing big booms in the coming weeks because of flight testing of F-16s by Lockheed Martin (based in Fort Worth).
The southern flight test corridor runs about 200 miles south of Fort Worth to the Brownwood area.
More F-16s need to be taken out for test flights because Lockheed Martin has increased its production.
