§ Mr. Nicholas Edwardsasked the Secretary of State for Trade and Industry what was the overpressure measured at St. David's Cathedral on each of Concorde's supersonic flights down the West Coast route.
§ Mr. Michael HeseltineFollowing is the information:
Date of Flight Measured Overpressure (lb./sq.ft.) 1st September 1970 1.7 5th September 1970 No measurement 2nd October 1970 No measurement 7th October 1970 2.7 10th October 1970 2.1 12th October 1970 2.3 26th October 1970 1.6 28th October 1970 2.2 12th November 1970 2.1 12th December 1970 1.7 1st January 1971 1.4 24th April 1971 No measurement 28th April 1971 No measurement 30th April 1971 1.7 4th May 1971 No measurement 8th June 1971 14th July 1971 2nd September 1971 No measurement 22nd November 1971 6th January 1972 12th April 1973 1.5 27th April 1973 Results not yet available