2.2.3 Dimensions of landing area
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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 - 2.2.3 Dimensions of landing area

2.2.3 Dimensions of landing area

 In establishing a landing area, it is essential to ensure a safe correlation between:

  • .1 the dimensions of the aiming circle, clear zone and manoeuvring zone and the maximum permitted height of obstructions in these zones; and

  • .2 the sizes of helicopters expected to use the facility.

In particular, the clear zone of the landing area should be as large as practicable. Its diameter D should be not less than the overall length of a helicopter (with its rotors turning) (d) which may use it. Other dimensions of the landing area should be in proportion to the diameter of the clear zone, as illustrated in figures 1 and 2.


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