A6.5.5 Flow-charts for decision-making
Chart 1 is designed to assist in determining Hostile versus Non-hostile environments whilst Chart 2 to assist local aviation contacts and managers in decision-making during adverse weather. These charts are not intended to be used in isolation as comprehensive knowledge of local environments is also vital in making informed decisions.
Aircraft management guidelines
Chart 1 – Hostile/Non-Hostile Environment Aircraft Considerations
Multi-engine required
Note 5
Chart 2 – Offshore helicopter adverse weather planning considerations
Appendix 7
Recommended aircraft equipment fit
Equipment requirements for aircraft are an important consideration and can have an impact on the aviation portion of a project’s budgets. Consequently it cannot be overstated that the Aviation Advisor must be involved as early as possible, and have a clear understanding of the project and the associated constraints. Ultimately, the goal is to correctly equip the aircraft to match the task thereby enabling the crew to complete the job safely.
In determining appropriate aircraft and equipment several points need to be considered; project needs, the environment to be operated in, and the length of the contract.
Project needs should be clearly understood by the aviation advisor.
1) Is the aircraft to fly cargo and or passengers?
2) Will the operation include offshore operations or other specialized operations?
3) Will the aircraft be used to provide medical evacuation support?
4) How critical is aviation support to the overall project?
The operating environment for the project refers to the distinction between Hostile vs Non-Hostile environment. Hostile is an environment where a successful emergency landing cannot be assured, the occupants of the aircraft cannot be adequately protected, or search and rescue response/capabil-ity cannot be provided consistent with the anticipated exposure.
Non-Hostile is an environment in which a successful emergency landing can be reasonably assured, the occupants can be protected from the elements, and search & rescue response capability is pro-vided consistent with anticipated exposure.
The Aircraft Management Guide contains for a general discussion on aircraft and aircraft opera-tor selection, which contains further discussion of operating environments. Essentially the Aviation Advisor should attempt to mitigate the risk of the operating environment with a properly equipped aircraft and appropriate search & rescue (SAR) capability. Appendix 6 contains a guide for plan-ning and operational decisions in regard to weather, both adverse and routine, and the impacts of weather criteria on aircraft selection/operation. It is designed for use for all aircraft operations, both aeroplane and helicopter, and for onshore/offshore operations. Appendix 12 contains considerations for SAR and requirements for aircraft providing SAR as a secondary role.
The length of contract is often a constraint but should not stop getting the right equipment for a par-ticular project. As a general statement a long-term contract is one that is at least one year. However, the real deciding factor on aircraft equipment and ultimately aircraft performance is the operating environment.
The following equipment lists are not inclusive for every environment, but will provide a reasonable start point for most operations.
Aeroplane recommended equipment
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