Division 4 CALCULATION OF SURFACE TIME-AVERAGED SOUND PRESSURE LEVELF1

United Kingdom

Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below:

Annex Pt. 2 point (12A) inserted by Unmanned Aircraft 2025 reg. 9(2)
Annex Pt. 3 point (14A) inserted by Unmanned Aircraft 2025 reg. 10(2)
Annex Pt. 4 point (9A) inserted by Unmanned Aircraft 2025 reg. 11(2)
Annex Pt. 5 point (4)(a) word omitted by Unmanned Aircraft 2025 reg. 12(2)(a)
Annex Pt. 5 point (4)(a) words inserted by Unmanned Aircraft 2025 reg. 12(2)(b)
Annex Pt. 1 point (7A)-(7D) inserted by Unmanned Aircraft 2025 reg. 8(2)
Annex Pt. 1 point (8)(a) word omitted by Unmanned Aircraft 2025 reg. 8(3)(a)
Annex Pt. 1 point (8)(a) words inserted by Unmanned Aircraft 2025 reg. 8(3)(b)
Annex Pt. 5 point (3A)(3B) inserted by Unmanned Aircraft 2025 reg. 12(1)

The A-weighted surface time-averaged sound pressure level shall be determined at least three times for each UA configuration. If at least two of the determined values do not differ by more than 1 dB, further measurements will not be necessary; otherwise the measurements shall be continued until two values differing by no more than 1 dB are obtained. The surface time-averaged sound pressure level to be used for calculating the sound power level of a UA configuration is the arithmetic mean of the two highest values that do not differ by more than 1 dB.

Annotations

Textual amendments

F1: Substituted by Commission Delegated Regulation (EU) 2020/1058 of 27 April 2020 amending Delegated Regulation (EU) 2019/945 as regards the introduction of two new unmanned aircraft systems classes.