2.2.5 Clear zone
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Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.895 – Recommendation on Helicopter Landing Areas on Ro-Ro Passenger Ships – (Adopted on 4 February 1999) - Annex - Recommendation on Helicopter Landing Areas on Ro-Ro Passenger Ships - 2.2 Details of landing area - 2.2.5 Clear zone

2.2.5 Clear zone

  2.2.5.1 The diameter of the clear zone will depend upon the available landing area. The clear zone should however be as large as practicable recognizing that its diameter D must be greater than the overall length, with rotors turning, of a helicopter able to use the landing area (d). Where the landing area is at the ship's side safe helicopter access will be enhanced by widening, where possible, the boundaries of the obstacle-free clear zone at the ship's side to a dimension of at least 1.5D (see figure 1). The circumference of the clear zone should be marked by a yellow line of 0.2 m width, with the diameter D in metres indicated in white figures at points in the circumference line as shown in figures 1 and 2.

Figure 1 Landing area at the ship's side

Figure 2 Landing area without unobstructed access from ship's side

  2.2.5.2 There should be no fixed obstructions in the clear zone higher than 0.25 m.

Parent topic: 2.2 Details of landing area
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