GM1 HPT-DSN.E.410 Approach surface

(a)Consultations with helicopter operators could assist the aerodrome operator in determining the appropriate slope category to apply according to the heliport environment and the most critical helicopter type for which the heliport is intended. [Figure or form omitted from this preview — available in the Avioverse workspace library.] Figure GM1-E-1. Example of raised inclined plane during operations in performance class 1

(b)The example shown in Figure GM1-E-1 does not represent any specific profile, technique or helicopter type and is intended to show a generic example. An approach profile and a back-up procedure for departure profile are depicted. Specific manufacturers operations in performance class 1 may be represented differently in the specific helicopter (aircraft) flight manual (HFM).

(c)The approach/landing profile may not be the reverse of the take-off profile.

(d)Additional safety assessment for obstacles might be required in the area that a back-up procedure is intended. Helicopter performance and the HFM limitations would determine the extent of the assessment required.

(e)For heliports intended to be used by helicopters operated in performance class 2 and 3, it is good practice for the approach paths to be selected so as to permit safe forced landing or one-engine-inoperative landings such that, as a minimum requirement, injury to persons on the ground or water or damage to property are minimised. The most critical helicopter type for which the heliport is intended and the ambient conditions may be factors in determining the suitability of such areas.

(f)The approach and take-off surfaces should be offset from each other ideally by an angle of not less than 135 degrees.