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Calculating the hook load, plus craning, slipping and cover ashore
When calculating the load for craning ashore,
allow for the displacement plus around thirty per cent for equipment, tank contents and water.
Calculator
The displacement quoted in the brochure is the light displacement. Full tanks, equipment, chain and stores all come on top of that, and on a ten-tonne yacht that is easily two to three tonnes. The crane operator needs the realistic figure, not the one from the data sheet.
Craning and slipping are the riskiest moments of the boating year. A sling that has slipped, a badly placed support, a crane at its limit: the damage ranges from a crushed hull side to a total loss.
Check whether normal hull cover applies during craning, slipping, hauling out and launching; under a seasonal policy it applies only from 1 April to 31 October. If the marina is at fault for the damage, it is liable, and cover for uncollectable claims helps should it be unable to pay, where the policy includes it.
Frequently asked questions
Am I insured during craning?
Yes, normal hull cover applies during craning, slipping and while the boat is being moved on land.
Which figure does the crane operator need?
The real displacement with equipment and full tanks, not the light displacement from the brochure.
Worked out for your type of boat
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