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Paragraph 2

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

The noise levels required by paragraph 3 of this Part of this Schedule shall be measured at the following points—

(a)

on take-off—

(i)

at a flight path reference point located on the ground vertically below the flight path defined in the take-off reference procedure and 500 metres horizontally in the direction of flight from the point at which transition to climbing flight is initiated in the reference procedure;

(ii)

at two other points on the ground symmetrically disposed about the flight path defined in the take-off reference procedure and lying on a horizontal line through the flight path reference point at right angles to the direction of flight at a distance of 150 metres.

(b)

on overflight—

(i)

at a flight path reference point located on the ground 150 metres vertically below the flight path defined in the overflight reference procedure;

(ii)

at two other points on the ground symmetrically disposed about the flight path defined in the approach reference procedure and lying on a horizontal line through the flight path reference point at right angles to the direction of flight at a distance of 150 metres.

(c)

on approach—

(i)

at a flight path reference point located on the ground 120 metres vertically below the flight path defined in the approach reference procedure;

(ii)

at two other points on the ground symmetrically disposed about the flight path defined in the approach reference procedure and lying on a horizontal line through the flight path reference point at right angles to the direction of flight at a distance of 150 metres.