Where I used to store my boat, the wind can reach gusts of 140 kph (180 recorded once). All the boats are in very robust metal cradles and placed bow to wind. Never heard of any problems of being blown over. The cradles are as wide as the boats and give a wide area of support.
Terrible for the poor owners of the fallen boats.
See your pictures go to show that the cradles were being used and didn't stop it. I think that shows clearly enough that using cradles is not always superior to wooden props.
Can't help noticing from the pics that some seem to still have their sprayhoods up, as well as roller furling sails still on etc. Probably wouldn't have made any difference in this instance, but it was a stipulation in my marina that all canvas was taken off at lift out.
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Can't help noticing from the pics that some seem to still have their sprayhoods up, as well as roller furling sails still on etc. Probably wouldn't have made any difference in this instance, but it was a stipulation in my marina that all canvas was taken off at lift out.
[/ QUOTE ]Yes, just as I said, sails on the furlers, it happens all the time. I cannot understand any owner leaving them on, or any yard letting them. It could just be that it was the yacht with an unravelled furler that brought the rest down.
Makes you wonder whether, as well as a 'capsizing' side force from the wind, there might not have been some lift generated by high-speed air being compressed under what look to have been tightly-packed yachts, effectively making them rather lighter?
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Makes you wonder whether, as well as a 'capsizing' side force from the wind, there might not have been some lift generated by high-speed air being compressed under what look to have been tightly-packed yachts, effectively making them rather lighter?
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A friend of mine has a mini transat down there, and sadly this is exactly what seems to have happened to his boat. The damage and location of the boat is consistent with the boat being dropped on its keel then falling over. Especially as the dedicated road trailer is still upright and intact.
He was unable to get insurance for the boat as well, so this may put paid to his mini transat plans.
Hmmmh! And they appear to have been identical cradles to the one my boat is sitting in at the momment. Think I'll have to see if can be reinforced in any way. Mike.
I have always felt that a boat hull, in these kind of winds, generates a good deal of lift; and this is what can loosen props and precipitate the problem. I agree with an earlier post, in vulnerable locations, boats need to be picketed down (like aircraft) to strongpoints set into the ground.
With cradles, the keel must be positively located or it will creep to windward. I have seen this happening on my boat (very scary) and I now use steel pegs driven into the ground to help secure things.
However, I hope that insurance companies will start to differentiate between premiums for boats with masts left up and those that take the trouble to take them down.
The mast will make a huge difference in a 100mph gust - due to the sheer leverage. And the vastly increased shaking is likely to loosen the wooden wedges on the "pit prop" approach. Our yard refuses to alllow masts up on props, but only on sturdy steel cradles. Even then no guarantee a hurricane strength gust wouldn't knock over, but much less likely.
Every yacht at QAB exept bilge keelers are kept in a metal cradles plus suporting pit props placed on bulkheads, lets not distance debate, if you want the truth get your ass down there.