Statutory Documents - MCA Publications - LY3 - The Large Commercial Yacht Code - 5 Weathertight Integrity - 5.7 Air Pipes
5.7 Air Pipes
5.7.1 Air pipes serving fuel and other tanks should be of efficient construction and provided with permanently attached means of weathertight closure. Means of closure may be omitted if it can be shown that the open end of an air pipe is afforded adequate protection by other structure(s) which will prevent the ingress of water.
5.7.2 Where located on the weather deck, air pipes should be kept as far inboard as practicable and be fitted with a coaming of sufficient height to prevent inadvertent flooding. Generally, air pipes to tanks should have a minimum coaming height of:
| Location | Unrestricted Yachts | Short Range Yachts |
| On weather deck | 760mm | 380mm |
| Elsewhere | 450mm | 225mm |
5.7.3 Air pipes to fuel tanks should terminate at a height of not less than 760mm above either, the top of the filler pipe for a gravity filling tank or, the top of the overflow tank for a pressure filling tank.
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