.
Provide a good location for aeronautical telecommunications equipment
.
Provide a storage area to ensure crash / rescue equipment is readily
available
.
Provide a good location for meteorological and navigation instruments
.
Provide storage for helideck crew personal protective clothing.
To be effective, the control room should have good all round visibility of the helideck and potential helicopter landing and take-off flight paths. The control room construction should take full account of potential exposure of the occupants
(e.g. Helicopter Landing Officer) in the event of a serious helicopter incident on the helideck.
Care is required when designing the control room to ensure that it does not encroach into the obstruction free sectors and that the height is within the height limitations in the limited obstacle sectors.
6.7.3 Access and Escape Routes
When deciding the normal access and emergency escape routes to and from the helideck, a safe and efficient route should be provided for passengers between the helideck and arrival / departure areas.
The escape evacuation and rescue analysis for the Offshore Installation should be taken fully into account (see SCR and PFEER requirements).
The potential orientations of a helicopter positioned on the helideck should also be considered especially with respect to prevailing winds, but also in consideration of all possible landing directions (See CAP 437).
Access and Escape route design is addressed in greater detail in Section 9.0, Helideck Structures.
7.0 FLOATING STRUCTURES AND VESSELS
7.1 INTRODUCTION
Floating Structures and Vessels account for a large proportion of the day to day offshore activities in UK waters.
Floating structures comprise of the following:
.
Floating Production and Storage Systems
.
Mobile Offshore Drilling Units
.
Accommodation Vessels (Floatels)
.
Jack-ups on-the move and
.
Specialist Vessels.
Specialist Vessels may include:
.
Shuttle Tankers
.
Diving Support Vessels
.
Well Intervention Vessels
.
Seismic Vessels
.
Pipelay Barges / Vessels
.
Crane Barges and others.
Many of these units will have helidecks where the design and construction of such helidecks (particularly on some vessels) tend to be less prescriptive than for fixed installations; the ship’s main functional purpose will sometimes inhibit helideck design. However, they are required to meet the standards set out in the relevant regulations, codes and guidance in order to undertake helicopter operations routinely in UK waters. Failure to meet the required UK standards will either exclude helicopter operations, or incur severe limitations requiring expensive rework to comply fully.
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