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post #1 of 9 Old 04-04-2013 Thread Starter
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behind mast furler

anyone one know anything about a behind mast furler for a psc 37? or has any one used one?
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post #2 of 9 Old 04-04-2013
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Re: behind mast furler

I know a number of people that have tried them. Every single one of them had major problems, and eventually took them off and threw them away.

Greg Rubin
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post #3 of 9 Old 04-05-2013
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Re: behind mast furler

They can be very noisy, sail shape can be an issue as they are only supported at the mast top and above or below the boom. They are really just a vertical headsail furler. I have no idea what the major problems would be, as Stumble eludes to. For a racer, go fast to windward forget it. But for a cruiser with a cruising boat they do make sail handling easy and could extend the cruising years of the elderly, less mobile sailor.

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post #4 of 9 Old 04-14-2013
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Re: behind mast furler

Based on the few responses for a behind the mast furled I guess they are somewhat rare. We purchased a PSC 37 yawl and it came with a in-mast or actually a behind the mast furler enclosed in an aluminum extrusion riveted to the mast. It is a Selden unit and was professionally installed by the previous owner. It required the main sail to be cut down to work with the furler and it is loose footed. The Selden furler works great in our experience with it and it makes furling and reefing very efficient from the cockpit. We do feel the extra weight aloft could be an issue because the Lefeill spars are substantial anyway but for cruising it is very nice and mast bend is not something we need for performance.
I attached a photo to give a look at the system.

Curtis Smith
s/v Cilantro
PSC 37 #334
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post #5 of 9 Old 04-14-2013
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Re: behind mast furler

That Selden system manages to deal somewhat with the major (performance) problem of behind-mast furlers by closing the gap between the sail and the mast. It is more weight aloft, but it also allows a standard mast section to be retrofitted.

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post #6 of 9 Old 04-14-2013
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Re: behind mast furler

The problem in my experience is that as soon as the sail stretches at all there isn't enough room between the foil Nd the mast to wrap the entire sail up. Which leads to lots of jams, and stuck bits. But I don't know the make/model of the one on my friends boat. After fighting it, and having two different sails cut, by two different lofts (neither of which worked). We took the whole thing down, and threw it in the trash.

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post #7 of 9 Old 05-21-2015
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Re: behind mast furler

In mast or behind the mast, cant use horizontal battens. Sail shape suffers.
How well can you trust the reefing line in a sudden blow? Sailed on a boat with continuous reefing line. When the wind came up so did the sail. NOT a happy memory.
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post #8 of 9 Old 05-22-2015
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Re: behind mast furler

Margalo came with a behind the mast furler. At the time we were cruising with three small children and it eased sail handling for the adults. As time went on, we began to be frustrated by the loss of sail shape and poor performance under sail.
About 2-3 years in, it began to jam with greater frequency. After one epic jam in a tight situation we took it off and threw it away.
Since then we have used lazyzacks and a stack pack and a Tides sail track. I think that it is no harder, we retain sail shape and horizontal battens, and it never jams.

David Howes
S/V Margalo
PS 37
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post #9 of 9 Old 05-22-2015
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Re: behind mast furler

A Tides Strong Track, batten cars, and lazyjacks or a dutchman system combined with an electric halyard winch would be a pretty good setup.

I have a Lesurefurl on my boat, which is an in-boom system. It keeps weight lower, allows you to retain battens, and if it jams, you can still pull the sail down the old fashioned way.

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