§ Mr. Hayhoeasked the Secretary of State for Trade whether he will publish the monitored noise measurements for Concorde on its recent flights from Heathrow Airport and give comparisons for noise level and duration with other aircraft using the airport.
§ Mr. Clinton DavisThe maximum noise levels recorded by Concorde at the permanent monitoring points during its first nine commercial flights at Heathrow, together with the duration of the noise recorded above 90 PNdB, are shown in the following tables, together with the noise levels of the six immediately preceding and succeeding aircraft:
104W
Aircraft Maximum noise level PNdB) Duration of noise above 90 PNdB (seconds) 21st January DC9 98 24 Trident 105 37 Trident 109 44 Trident 102 38 Boeing 747 107 6 Caravelle 103 37 CONCORDE 112 42 Boeing 707 98 34 Boeing 707 100 41 Boeing 747 96 19 Boeing 747 100 18 Boeing 747 97 20 Trident 113 42 26th January Trident 112 32 DC8 99 28 Boeing 737 96 32 TU 134 102 27 Boeing 707 102 35 Boeing 747 95 14 CONCORDE 114 42 Boeing 727 103 15 HS 125 97 20 Trident 110 54 Boeing 707 105 42 Boeing 727 105 40 Boeing 707 105 46 28th January Lockheed 1011 Below 90 PNdB DC9 100 29 DC9 101 27 Boeing 727 102 24 Trident 110 43 Trident 112 35 CONCORDE 112 43 Trident 107 43 Trident 110 46 Trident 99 29 Boeing 737 97 32 Trident 105 30 Boeing 747 102 21 105W
2nd February DC9 99 21 Trident 108 36 Boeing 737 92 14 BAC 1–11 103 46 Trident 106 33 BAC 1–11 103 39 CONCORDE 112 25 HS 125 95 17 Boeing 737 Below 90 PNdB Boeing 747 95 9 Boeing 747 99 17 Trident 105 39 Trident 106 30 4th February Boeing 727 96 18 Trident 107 46 DC9 97 23 Trident 106 43 BAC 1–11 101 49 HS 125 98 19 CONCORDE 111 27 Trident 101 29 Boeing 747 106 20 Trident 106 41 Trident 106 35 Trident 98 31 Trident 104 35 9th February Trident 110 35 Boeing 707 106 31 Boeing 707 116 46 Boeing 707 102 44 Super VC 10 107 50 Boeing 747 108 34 CONCORDE 109 49 BAC 1–11 106 65 Trident 108 38 Boeing 737 101 31 Boeing 727 107 28 Trident 108 52 A300B Below 90 PNdB 11th February Boeing 727 102 41 BAC 1–11 107 62 Boeing 747 96 13 Trident 111 50 Boeing 737 97 22 Trident 108 35 CONCORDE 112 46 Trident 111 45 VC 10 110 66 DC9 Below 90 PNdB Trident 108 47 BAC 1–11 106 66 Boeing 747 99 25 16th February (morning take-off) Trident 107 48 BAC 1–11 107 49 Trident 106 44 DC9 103 29 Trident 107 37 Boeing 707 99 34 CONCORDE 110 41 Trident 110 38 Super VC 10 111 53 Boeing 707 100 28 Boeing 727 102 31 Trident 111 47 Trident 106 38
16th February (afternoon take-off) Trident 105 57 Boeing 707 106 20 Boeing 737 96 17 Trident 108 45 Trident 105 26 Trident 108 41 CONCORDE 112 40 Trident 102 40 Trident 108 38 DC9 96 12 Trident 107 39 Fokker 28 98 23 Super VC 10 106 34 I should emphasise that we shall need the results of many more movements than the first nine commercial flights before valid conclusions can be drawn.