On the Ropes
Sailing Today|February 2021
Rupert Holmes looks at how to choose the best rope for your boat and at some of the latest technology
Rupert Holmes
On the Ropes

For most applications the ultimate goal is to have running rigging that does not stretch at all. But why?

Whether racing or cruising, the fundamentals are the same – any stretch in a halyard or other rope changes the sail shape. Therefore in gusts the sail develops a fuller shape, with draft– the position of maximum depth – moving aft. This powers up the sail, increasing heel, and loads up the rudder, increasing weather helm. This, in turn, makes the boat more uncomfortable and more difficult to control in gusty conditions. It will also be a lot slower.

By contrast, if the sail shape remains constant in a gust, all the extra power goes into making the boat go faster. It also makes it possible for the helm to feather up two or three degrees into the wind to reduce power – but it’s next to impossible to do that smoothly if the boat has baggy sails that contribute to loads of weather helm.

Successful racing sailors know this, yet the extent of the differences that modern sailcloths and rope technology bring is still easily underestimated. A great example is in the 12-Metre fleets of former America’s Cup boats that still race from Newport, Rhode Island. Some of these have had their masts moved aft by three feet to balance the helm now that they are not sailing with stretchy Dacron sails. The only real difference between racing and cruising is in how much you’re prepared to pay for these benefits.

This story is from the February 2021 edition of Sailing Today.

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This story is from the February 2021 edition of Sailing Today.

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