T30 ...spinnaker pole... And short pole next to it... - Page 2 - SailNet Community
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post #11 of 15 Old 09-04-2013
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Re: T30 ...spinnaker pole... And short pole next to it...

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Originally Posted by svHyLyte View Post
Note that in this photo, the reaching strut is up-side down. The long side of the outboard jaw, with the parrots beak end, should be on top of the guy, to hold the pole in place on the guy if the guy comes free of the sheave.

FWIW...
I guess the upside down strut has the fellow in the yellow foulies upset as he seems to be doing a bit of a frustration dance (or perhaps he has to pee)!

I get that a cruising chute or Asym sail of any kind would not need a reaching strut, which is only useful with a symmetrical spinnaker.

I still find it interesting that Harken does not show a reaching strut. I guess they assume that all cruising spinnakers are asymmetrical.

My faith in the marine sailing hardware companies remains undaunted though as I find that Forespar carries all the parts you could want for a reaching strut for nearly a boat buck: Sail Reaching Struts
It wouldn't be worthy of the label "marine grade" if the $1000 price tag wasn't for < $500 worth of parts.
Since I rarely fly the symmetrical spin on our boat I may just try to make one out of recycled parts from h'cane Sandy.

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post #12 of 15 Old 05-19-2015
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Re: T30 ...spinnaker pole... And short pole next to it...

RANDOM POST, SORRY...
(just joined and need 10 posts to see the pictures in the thread concerning rigging jacklines...)
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post #13 of 15 Old 05-19-2015
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Re: T30 ...spinnaker pole... And short pole next to it...

You dont see many reaching struts nowadays. First the symmetric spinnaker has fallen out of popularity, most racing is done with asyms. Secondly use a set to tweakers provide the same benefit as the reaching strut without the hardware and hassle. When set, the tweaker pulls the aftguy out and down to the rail and is a commonly used solution. http://www.harken.com/content.aspx?id=3913

Put the strut on Ebay.

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post #14 of 15 Old 05-20-2015
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Re: T30 ...spinnaker pole... And short pole next to it...

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Originally Posted by sailingfool View Post
You dont see many reaching struts nowadays. First the symmetric spinnaker has fallen out of popularity, most racing is done with asyms. Secondly use a set to tweakers provide the same benefit as the reaching strut without the hardware and hassle. When set, the tweaker pulls the aftguy out and down to the rail and is a commonly used solution. Harken

Put the strut on Ebay.
Ah... Not quite. The reaching strut changes/increases the angle of the guy at the outboard end of the pole which reduces the amount of load needed to provide the transverse (or lateral) force vector at the pole end to control the pole's horizontal position. That dramatically reduces the imposed compression load on the spinnaker pole and mast at the point of connection of the pole. Again--the strut functions just like a spreader. To reduce compression loads. A "tweaker" merely changes the angle between the pole end and the guy turning block which is normally at or just aft of the beam max.

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post #15 of 15 Old 05-20-2015
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Re: T30 ...spinnaker pole... And short pole next to it...

Quote:
Originally Posted by svHyLyte View Post
Ah... Not quite. The reaching strut changes/increases the angle of the guy at the outboard end of the pole which reduces the amount of load needed to provide the transverse (or lateral) force vector at the pole end to control the pole's horizontal position. That dramatically reduces the imposed compression load on the spinnaker pole and mast at the point of connection of the pole. Again--the strut functions just like a spreader. To reduce compression loads. A "tweaker" merely changes the angle between the pole end and the guy turning block which is normally at or just aft of the beam max.
Agree that a strut acts like a spreader.. and overall is better than a twinger from a mechanical advantage point of view.. but the twings accomplish a strut's other function, which is to avoid the guy 'sawing' across the upper shroud on a high reach. Also, the 'downward' pull of the twinged guy should relieve some of the load on the pole downhaul at the same time.

If you have a strut and you're looking at a long run it's probably worth setting up.. for shorter legs a twinger may be more practical.

If you have a pole downhaul that is rooted at the mast base (fewer adjustments when the pole moves fore or aft) then twingers are near necessary to stabilize the pole end without the 'forward' pull of a deck mounted downhaul.

Ron

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