HC Deb 31 January 1977 vol 925 c43W
Mr. Ronald Bell

asked the Secretary of State for Defence whether any activity for which he is responsible, including the movement of military aircraft, could account for the loud explosion, resembling a sonic boom, and the vibration which have been noticed in the area surrounding Beaconsfield between 9 o'clock and 9.30 o'clock on most evenings during recent weeks.

Mr. Wellbeloved

Repeated investigations have shown that the unusual sounds heard recently in southern and southwestern England cannot be traced to military flying or any other activity for which the Ministry of Defence is responsible.