Document ID: chunk:federal_register_of_legislation:F2024C01244:reg:5:p51
Version: federal_register_of_legislation:F2024C01244
Segment Type: reg
Provision Reference: reg 5 (pt 51/225)
Character Range: 446413–449087

the D value of the design helicopter; and

(b) with a line thickness of 0.5 m; and

(c) whose centre is aligned with the centroid of the design helicopter when it is correctly parked on the position.

       (3) If it is necessary to restrict the size of the T/PC helicopter parking position, a D value limit designator must also be marked:

(a) at a distance of 0.25 times the D value of the design helicopter before the T/PC marking on the side of the approaching helicopter; and

(b) with the left-hand edge of the required text aligned with the right-hand side of the T/PC; and

(c) with the designator letters and numbers:

 (i) marked 1 m high in yellow; and

 (ii) as far as physically possible, drawn to reflect, in form and width, the same proportions as shown for the letters and numbers in Figure 8.116 (5); and

 (iii) clearly readable by the pilot of an approaching helicopter.

       (4) If it is necessary to restrict the weight capacity of the T/PC helicopter parking position, a weight limit designator must also be marked:

(a) at a distance of 0.25 times the D value of the design helicopter after the centroid of the T/PC circle marking on the opposite side of the approaching helicopter; and

(b) with the right-hand edge of the required text aligned with the left-hand side of the T/PC; and

(c) with the designator letters and numbers:

 (i) marked 1 m high in yellow; and

 (ii) as far as physically possible, drawn to reflect, in form and width, the same proportions as shown for the letters and numbers in Figure 8.116 (5); and

 (iii) clearly readable by the pilot of an approaching helicopter.

     Figure 8.124 (2)   Touchdown/positioning circle type helicopter parking position marking (shows matters)

8.125 Helicopter apron edge markings

       (1) Apron edge markings must be provided if it is necessary to clearly define areas allocated specifically for helicopter parking.

       (2) As shown in Figure 8.125 (2), on sealed, concrete or asphalt aprons, the edge marking must:

(a) consist of 2 continuous, light blue lines 0.15 m wide and 0.15 m apart; and

(b) include the words "HELICOPTER ONLY":

 (i) marked in yellow letters 0.5 m high along the edge of the marking, and 0.15 m outside the helicopter apron; and

 (ii) legible to pilots of approaching aircraft; and

 (iii) repeated at intervals not exceeding 50 m along the helicopter apron edge marking.

     Figure 8.125 (2)   Helicopter apron edge marking (shows matters)

       (3) On gravel or natural surfaces, the apron must be marked using blue cones, spaced at a minimum distance of 30 m and a maximum distance of 60 m.

Note   For example, "dirt" would be a natural