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-   -   Main sheet travaler (http://www.sailnet.com/forums/general-discussion-sailing-related/74615-main-sheet-travaler.html)

nolasailor 05-20-2011 07:40 AM

Main sheet travaler
 
Hey there, looking to re work the main sheet travaler. I have a Niagara 31 that now has a cabin roof top "A" style boom swing control that is mid boom, without a travaler. I have seen pics of other Niagara 31's and they have a traveler set up at the rear of the boom close to the wheel, and i can see the old mounting holes on my boat as well.
What are the pros and cons of mid boom compared to end boom point of attachment, I am not a hard core racer, but might get into it latter on. Thanks for any input,,, thanks,,,, Kevin

Yorksailor 05-20-2011 09:16 AM

A violent gybe with a mid-boom attachment might break the boom.

blt2ski 05-20-2011 09:51 AM

One can break a boom with end boom too! Been there done that!

The nice thing about end boom and placement by the wheel, it is easier for the typically one person sailing the boat if a couple is on board if all the sheet lines are lead to the steering position, or close by.
One can also use a smaller ratio for ease of handling sheets, a mid boom may need 6-1, vs end boom 4-1. Or the 6-1 will work easier on the end vs middle........

I personally prefer the end boom, or at least something accessible in the cockpit vs on the cabin top, yeah it does take up some cockpit room, but not enough to say, I want the traveler on the top of the cabin.

Marty

nolatom 05-20-2011 10:17 AM

Kevin, I think you'll like a traveler better, it enables you to position the boom laterally in a more stable and 'definite' way. You have a definite (but moveable) lateral point, from which the mainsheet has a definite vertical point for up-and-down trim.

The "A" rig doesn't have that right-angle configuration, it's more of a compromise which I find too 'vague' in getting the boom where I want it with the right amount of lateral and vertical control.

Good luck

sailingfool 05-20-2011 10:56 AM

The advantage of the cabin top traveller locationis that it opens up the cockpit for people. If you cruise a lot with guests, having the mainsheet out of the cockpit is a plus, and you have hands on board to handle the sheet. Plus the mainsheet does not cross the cockpit durning a gybe.

Having the traveller in front of the helm is a plus for singlehanding, as the main sheet can be right at hand.

I singlehanded for years a boat with a cabin top traveller and found it a minor inconvenience, just another item to be one step ahead one.

Like most boat subjects, this choice is a matter of trade-offs, you need to decide which are most important to you.

Faster 05-20-2011 12:58 PM

Nowadays more people are going to the so called 'German' system... a cabintop or forward cockpit traveller with double ended mainsheet running forward to gooseneck, down to the deck and aft to winches or cleats near the helm. Not as quick as a aft cockpit traveller/mainsheet but it does address both the cockpit-freeing aspect of a cabintop and being adjustable easily from a couple of helm positions.

puddinlegs 05-20-2011 01:58 PM

Quote:

Originally Posted by Faster (Post 732409)
Nowadays more people are going to the so called 'German' system... a cabintop or forward cockpit traveller with double ended mainsheet running forward to gooseneck, down to the deck and aft to winches or cleats near the helm. Not as quick as a aft cockpit traveller/mainsheet but it does address both the cockpit-freeing aspect of a cabintop and being adjustable easily from a couple of helm positions.

Just curious, but have you ever seen one on a boat smaller than 39-40'? Not being rhetorical, just trying to keep up with the newest latest and honestly don't know the answer and thought you might. In my maybe outdated experience, the system usually is found on boats that would require either a mainsheet winch, or a pretty large mainsheet block system, the primary advantage of the German system being speed of operation (trimming, gybing, leeward mark roundings, etc...) and the mechanical advantage being provided by two winches. The German system also works best with relatively long and efficient traveller system.

To the OP, if you're boat was originally rigged with end boom sheeting, that's what the boom section was designed for. It may not be beefy enough for a mid-boom system.

Faster 05-20-2011 04:47 PM

Puddin.. our son has installed this on his Catalina 36 to good effect. I considered it for our own boat but didn't need to use winches so stayed with our cockpit traveller with mainsheet cleat attached (plus a fine tune)

Most mid boom (cabintop) setups on 30 plus end up using a winch, seems like, so the speed advantage is already lost. I suspect you'll see more of these setups for the reasons mentioned... more free space in cockpit and getting sheet to the helm.

On the Niagara 31 the double sheet setup is near the end of the cabin top, a couple of feet further aft than your typical cabin top traveller. I can't recall if there's a bridge deck on the N31 cockpit but that would be a good place if you can live with the intereference with seating and access to companionway. End of boom would probably put the traveller across the cockpit seats in front of the binnacle... again, choices to make.... are there seat hatches in the way.... etc etc.....

travlineasy 05-20-2011 05:03 PM

The only major advantage I can see of having the traveler on the cabin-top is the increased distance you can swing the boom. The farther aft the traveler, the lesser the distance of travel. Of course, the comparative distance the boom travels will also be predicated upon the length of the traveler itself.

As for stress on the boom, I would think the ultimate anchoring point of the traveler would be approximately 2/3 aft of the mast. Anything forward of that would likely pose a stress point, while aft of that would lessen the stress to some degree.

Good Luck,

Gary :cool:

nolasailor 05-21-2011 12:09 AM

thanks for all the input,,, would there be better sail trim ability with one or the other,,, I had thought that if i set it up for end of the boom i could alway add a riser to the track and relocate to cabin top if i did not like it at the weel, good point abot the 4 part block for aft, and needing more for mid boom, i did not even think of that,,,,


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