2.
The signs follow EC shape, symbol and colour conventions for prohibition, warning or advice, where appropriate
3.
Signs are properly constructed in robust materials and fixed to robust frames and secured to suitable hard points
4.
Signs are placed clearly in the normal line of sight of embarking and disembarking passengers and other operational personnel taking into account the normal routes taken to and from the helideck from heli-admin.
11.12.4 General Helideck Signs
General helideck signs should include:
1.
No unauthorised entry (Prohibition)
2.
Tail Rotor hazards (Warning)
3.
Anti Collision Light (Advice).
These signs are best grouped together and positioned on robust frames at all the entry points to the helideck. See Figure 11.34.
Preferably they should be located at the foot of the stairways or landings leading to the helideck surface. If possible, the signs should be located in a relatively un-exposed position to avoid potential mechanical or wind damage.
(Photo courtesy of John Burt Associates Limited)
11.12.5 Heli-Admin Signs and Posters
Helicopter operators generally provide the signs and posters to be displayed in heli-admin directly to the Installation operator, MODU or vessel owner. Further information on this topic can be found in the UKOOA Guidelines for the Management of Offshore Helideck Operations [Ref: 49].
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APPENDICES
1.
Contributors
2.
References
3.
List of Abbreviations
4.
Bell 214 ST – Design Information
5.
EH Industries EH 101 – Design Information
6.
Eurocopter EC155 - Design Information (Incomplete)
7.
Eurocopter EC255 – Design Information (Incomplete)
8.
Eurocopter AS332 L/L1 – Design Information
9.
Eurocopter AS332l2 – Design Information
10.
Eurocopter AS365n – Design Information
11.
Sikorsky S61N – Design Information
12.
Sikorsky S76 – Design Information
13.
Sikorsky S92 - Design Information
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APPENDIX 1 - CONTRIBUTORS
HSE and the Author wish to express their thanks to the following for their individual contributions during the preparation of these guidelines.
Dr. Shane Amaratunga BMT Fluid Mechanics Limited
Dave Andrew Bristow Helicopters Limited / BHAB Helidecks
John Bartovsky Westland Helicopters Ltd.
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