ED Decision 2019/012/R
(a) The safety objective of an aiming point marking is to provide a visual cue indicating to the pilot the preferred approach/departure direction, to the point to which the helicopter approaches to hover before positioning to a stand where a touchdown should be made, and that the surface of the FATO is not intended for touchdown.
(b) Location: Where provided, the aiming point marking should be located within the FATO (see Figure F-1).
(c) Characteristics:
(i) The aiming point marking should be an equilateral triangle with a minimum side length of 9.0 metres, with the bisector of one of the angles aligned with the preferred approach direction.
(ii) The marking should consist of continuous white lines, 1.0 m in width (see Figures F-1 and F-12).
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