HC Deb 26 January 1989 vol 145 c755W
Dr. Thomas

To ask the Secretary of State for Defence what studies have been undertaken by his Department of the noise levels generated on the ground by military jet aircraft overflying at 100 ft and at up to 550 knots.

Mr. Neubert

Although there has been no recent research specifically into the noise from low-flying aircraft, it is possible for MOD scientists, using the noise database collected during an exercise known as Bedlam, to calculate the maximum noise levels on the ground which would be generated by a military aircraft flying at 100 ft and at speeds up to 550 knots. A copy of the report of the results from exercise Bedlam was placed in the Library of the House in November 1987.