Investigators say a March 25 accident that killed a Lockheed Martin Corp. test pilot was due to high-g effects during a test of the side weapons bay on the F-22 Raptor. Pilot David Cooley nearly lost consciousness while rolling the plane at Mach 1.6, leaving him unable to correct a steep dive. Cooley was killed by windblast when he ejected at 765 knots, far above tested limits.