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low cloud base
- Fonte1
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Annex 14 to the Convention on International Civil Aviation: aerodromes: volume 1: aerodrome design and operation. 8th ed. Montreal, 2018. (Annex 14).
- Fonte2
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Heliport manual. 3rd. ed. Montreal, 1995. (Doc 9261 AN/903).
- Contexto
- A study should also be made of the occurrence of poor visibility and/or low cloud base. Account should be taken of their frequency as well as the accompanying wind direction and speed.
- It is desirable, particularly on fixed installations, that to meet the required safety criteria, the helideck should be located at or above the height of the highest point of the main structure. However, in so doing, it should be recognized that if this entails a helideck much in excess of 60 m above sea level, the regularity of helicopter operations in some sea areas may be adversely affected by low cloud base conditions.
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