Document ID: chunk:federal_register_of_legislation:F2022C00813:reg:300:p22
Version: federal_register_of_legislation:F2022C00813
Segment Type: reg
Provision Reference: reg 300 (pt 22/27)
Character Range: 128712–131862

the VF location (NM)

 ATP = the ATP track distance from land (NM)

 VFI = Initial VF distance from ATP (10 NM)

 HoldSL = simplified length of the holding pattern (9.1 NM).

         The VF is relocated towards the ATP by the amount of VFA, as limited by the 10 NM to 6 NM window.

         Example 1: ATP = 15 NM

          VFI = 10 NM

          HoldSL = 9.1 NM

          VFA = 15 - 10 - 9.1 = - 4.1 NM (i.e.; a 4.1 NM overlap).

         However, the maximum adjustment for the VF is 4 NM. Therefore, the holding area will overlap land by 0.1 NM.

         Example 2: ATP = 21 NM

          VFI = 10 NM

          HoldSL = 9.1 NM

          VFA = 21 – 10 - 9.1 = 1.9 NM.

         Therefore, there is a 1.9 NM clearance between land and the holding pattern.

Appendix 3 Determination of obstacle avoidance
Note 1   See paragraph 8.6.12.1 (c) and paragraph 8.6.13.
Note 2   Calculation of the minimum visual segment visibility is based on paragraph 157 (3) (b) of CAR 1988 to avoid obstacles by 300 m horizontally.

Data

Obstacle avoidance (regulation 157 of CAR 1988)  300 m

Obstacle recognition                             6 sec + 150 m

Bank establishment (sec)                         5

Bank angle                                       Rate one turn to 170 kt TAS, thence 25angle of bank

Wind (kt)                                        47 + 2H

                                                 (where H = altitude/1 000)

TAS (kt)                                         Maximum TAS permitted at ISA + 15°C.

Calculation

Obstacle avoidance                                300 m    = A

Turn radius (m) (for calculation see PANS-OPS –   = B
Principles for Turn Area Construction)

Recognition and bank establishment distance (m)

11sec x (TAS + [47+2H]) x 0.51 + 150 m            = C

Turn point to obstacle distance (m)

((A + B)2 - B2)½                                           = D

 Visibility required (m)                         = C + D

Figure 8‑27: Determination of obstacle avoidance distance

Section 8.8:   Helicopter procedures — GNSS/NPAs

8.8.1                   Application

8.8.1.1              A certified designer may design the instrument approach and landing procedures mentioned in this section for helicopter point-in-space (PinS) operations, provided the procedures are only for operators approved by CASA.

8.8.1.2              The instrument approach and landing procedures in Part IV of PANS-OPS for helicopter PinS RNP APCH approach procedures may be used as an alternative to the instrument approach and landing procedures mentioned in this section.

8.8.2                   Administration

8.8.2.1              Helicopter procedures under this section are:

(a)         classified as specialised helicopter operations; and

(b)         must be annotated, in the header and footer, with the following words in upper case bold font: FOR USE BY CASA-APPROVED OPERATORS ONLY.

 The use of the specialised helicopter procedures is limited to CASA‑approved operators only.

       Note   The CASA Area Office forwards to the Manager, CNS/ATM, copies of the relevant parts of each prospective operator's