Helideck Nets are used on the offshore helicopter landing decks, oil rigs and platforms where more friction and support are required. The purpose of these nets is to prevent the Helicopter from rolling, skidding and pitching off the helipads. Using natural fiber rope Sisal to avoid issues with rust & damage, the helideck net provides friction and grip for when the helicopter lands on the helipad.
CAP 437 Standards for Offshore Helicopter Landing Areas Chapter 3 7.3 states – "It is preferable that the rope is constructed of sisal, with a maximum mesh size of 200 mm."
The minimum size of the landing net required depends upon the size/type of helicopter for which the landing area is to be used. The following standard sizes are available :