Document ID: chunk:federal_register_of_legislation:F2024C01244:reg:5:p45
Version: federal_register_of_legislation:F2024C01244
Segment Type: reg
Provision Reference: reg 5 (pt 45/225)
Character Range: 431338–434094

entry signs; and (b) information signs, such as direction signs, location signs, runway exit signs, runway vacated signs and intersection take-off signs.

       (1) Movement area guidance signs (MAGS) must be:

(a) frangible; and

(b) constructed of lightweight materials.

Note   CASA recommends that MAGS should be designed for installation on a concrete pad or on stakes. All required mountings or support hardware should be regarded as part of the sign for frangibility purposes.

       (2) The overall width of a MAGS, including its mounting, must not exceed 3 m.

Note   If the total message does not fit on a 3 m sign, CASA recommends that 2 separate signs mounted side‑by-side should be provided.

       (3) Each mounting leg or stake for a MAGS must have a frangible point located not more than 50 mm above the ground on which the MAGS is located.

       (4) Each frangible point mentioned in subsection (3) must:

(a) be capable of withstanding the wind loading delivered by the maximum jet blasts of the aircraft for which the aerodrome is designed; and

(b) be such that the mounting leg or stake will break or fall over at the frangible point before an applied static load reaches 8.96 kPa.

Note   ICAO states that for a specified wind loading of 322 km/h (174 kt), breaking should occur before the applied static load reaches a value of 8.96 kPa.

       (5) Legend panels and panel supports on a MAGS must be able to withstand at least the loadings mentioned in subsection (4) and not create a hazard to aircraft if struck.

CHAPTER 8

Division 12 Helicopter areas on aerodromes

8.114 Introduction

        If an aerodrome is used by both helicopters and fixed-wing aircraft, facilities provided for the exclusive use of helicopters must have specific markings in accordance with this Division.

8.115 Helicopter touchdown and lift-off area markings — non-runway type FATO area

       (1) If a specific area, other than a runway or runway type final approach and take-off (FATO) area, is provided for helicopter touchdown and lift-off, the area must be marked by the following:

(a) a touchdown and lift-off area marking;

(b) an identification marking;

        as shown in Figure 8.115 (1).

Note   If a runway is used by both fixed-wing aircraft and rotorcraft, the runway does not require dedicated helicopter markings.

       (2) The touchdown and lift-off area must be marked as a white circle with:

(a) a line thickness of at least 0.3 m and not more than 1 m; and

(b) a minimum inside radius of whichever of the following is the greater:

 (i) 6 m;

           (ii) 0.83 times the D value of the largest helicopter using the area.

       (3) The touchdown and lift-off area must have a white "H" identification marking