Air draft
- Thread starter hmdjamesh
- Start date
Probably lots of ways....
but an old fashioned one is to actually to measure it with a tape.
Three Steps: 1- measure from water surface to top of toe rail.
2- run a suitably long tape measure end up with the main halyard shackle, AND tie a line also to the shackle in case the tape end comes loose. Measure down to toe rail.
3- estimate the remaining distance to the top of the vhf antenna and/or allow for the wind transducer. Often about 5 feet additional; enough to be safe.
Add up 1, 2, and 3 and you have a real world figure that should help prevent contact with bridge girders. Or, just use "42" since that's the answer to the meaning of life, the universe, and everything...
but an old fashioned one is to actually to measure it with a tape.
Three Steps: 1- measure from water surface to top of toe rail.
2- run a suitably long tape measure end up with the main halyard shackle, AND tie a line also to the shackle in case the tape end comes loose. Measure down to toe rail.
3- estimate the remaining distance to the top of the vhf antenna and/or allow for the wind transducer. Often about 5 feet additional; enough to be safe.
Add up 1, 2, and 3 and you have a real world figure that should help prevent contact with bridge girders. Or, just use "42" since that's the answer to the meaning of life, the universe, and everything...
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