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. 2022 May 6;194:108809. doi: 10.1016/j.apacoust.2022.108809

Table 10.

Measured sound levels for the aircraft B787-900 (flight 1), total measurement duration 24 m 7 s, entire trip duration 6 h 5 m.

Segment Duration (s) Leq [dB(A)] Lmax [dB(A)] Leq [dB(C)] Lmax [dB(C)] Flight stage
1 55.7 67.0 69.7 82.5 85.8 Taxiing
2 121.1 66.5 69.0 84.0 91.0 Taxiing
3 403.7 73.5 81.2 92.0 101.5 Takeoff
4 107.7 70.8 71.6 86.4 87.6 Cruising
5 112.4 73.8 76.4 87.7 89.0 Cruising
6 107.0 71.1 72.0 85.1 86.0 Cruising
7 5.6 72.2 73.7 84.5 85.1 Cruising
8 63.9 71.9 72.5 84.4 85.1 Cruising
9 39.2 70.4 74.4 84.5 85.4 Cruising
10 119.3 69.4 71.2 85.6 87.0 Cruising
11 78.8 71.0 72.0 85.7 86.9 Landing