Tuesday, September 8, 2009

more DeathRoll avoidance

The key is to develop a feel for how hard the boat can roll before you lose it. The usual roll pattern is a good roll to windward, a stronger roll to leeward, and then an even stronger roll to windward, which is when you will lose it. The key is to steer up hard on the third roll, which will stop the boat from rolling. It's even better if you steer off on the leeward roll, which will dampen the overall intensity, but it is absolutely essential to steer up hard as the boat begins to roll to windward, so the boat stays under the masthead.

The "training wheels" strategy of pole forward and low will dampen the roll, as will keeping the chute well trimmed. Ease the vang in a round-up, but not on a round-down, since a loose mainsail leach forces the masthead to weather and makes it nearly impossible to jibe back if you lose it.

In extremis, you can blow the sheet, but do it quickly, so the spinnaker luff doesn't increase the windward roll. Don't blow the afterguy. This will break the pole on the forestay and probably the tull-luff, too.

Chicken stays should go from the pole butt to the rail. The goal is to prevent the pole from pushing the mast out of column, but if the tip of the pole is well and truly buried, something will break. The cheapest candidate is the mast car, the most expensive is the mast. A foreguy to led to the middle of the foredeck will prevent the water force from rotating the pole aft and keep it away from the shrouds.

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Trim Tips

Draft

Draft
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Duff on tap?

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