6.0 HELIDECK AND FACILITIES LAYOUT
6.1 INTRODUCTION
The purpose of this section is to identify the topics that should be considered in the design and fabrication of new helidecks and in the modification of existing helidecks.
It also identifies experience-based practical requirements for the operation and maintenance of a helideck, regardless of the type of facility to which it is fitted.
6.2 DEVELOPING A HELIDECK DESIGN SPECIFICATION
6.2.1 General
At the conceptual stage of an installation, MODU or vessel design, a firm commitment is required from the owner or operator to ensure that a good operating environment is obtained for safe and efficient helicopter operations. A positive management commitment at this stage should ensure that, at each stage in the design process, proper consideration is made for the future helicopter operations, alongside other competing priorities.
The ideal helideck design can rarely be achieved due to an offshore installation, MODU or vessel's other activities and priorities (e.g. process, drilling, power generation, and diving operations), the working environment including vessel motions in the case of floating installations and vessels. Inevitably, the outcome will always be a compromise with the other activities. However, the designer should make every effort to ensure that the helideck is truly ‘Fit for Purpose’.
6.2.2 Reference Publications and Guidance
It should be noted there are only a few authoritative publications that provide general guidance for helideck designs e.g. the International Civil Aviation Organisation (ICAO) codes, CAA Standards, Mobile Offshore Drilling Units (MODU) codes, etc. These codes have been identified in Section 4.3 and in Appendix 2. It is therefore important to give careful consideration to the topics in the following sections. They are not in order of priority, nor exhaustive.
6.3 INSTALLATION / VESSEL LAYOUT CONSIDERATIONS
6.3.1 Main References
CAP 437, Chapter 2 is the starting point for helideck and facilities design in the UKCS.
6.3.2 General
The helideck is a vital support system for all offshore operations. Failure during design to maximise helideck operability may have far reaching implications during operations. These implications are typified by flight restrictions (sometimes severe), and have the potential for increased operating expense that may later lead to costly modifications.
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