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Which mast step material is better - rubber or tendon?
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isobars



Joined: 12 Dec 1999
Posts: 14624

PostPosted: Tue Jun 24, 2014 2:47 pm    Post subject: Reply with quote

I used not only mech joints but ONE mech joint for many years of full time Gorge sailing ... as in every day (heck, most hours) that there was enough wind for a 6.X sail or smaller somewhere on the Columbia plus some coast trips. It finally blew up when I let its screws loosen up. I have compete confidence in them. It's like roller bars: Loctite 'em and check 'em for tightness EVERY time you sail, and they apparently last for many years, if not permanently. Let 'em get loose and the roller will snap off.
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gregnw44



Joined: 23 Jul 2008
Posts: 246

PostPosted: Tue Jun 24, 2014 4:09 pm    Post subject: Reply with quote

isobars wrote:
I used not only mech joints but ONE mech joint for many years of full time Gorge sailing ... as in every day (heck, most hours) that there was enough wind for a 6.X sail or smaller somewhere on the Columbia plus some coast trips. It finally blew up when I let its screws loosen up. I have compete confidence in them. f.


Mike -
I only have 1 mech. U-joint... I'm sure there are other designs...
But, "what screws" are in your mechanical U-joint?
My old one doesn't have any screws holding it together.

I guess I should've gone to the Chinook and Steamline websites before posting Smile
Thanks, Greg -
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isobars



Joined: 12 Dec 1999
Posts: 14624

PostPosted: Tue Jun 24, 2014 4:41 pm    Post subject: Reply with quote

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gregnw44



Joined: 23 Jul 2008
Posts: 246

PostPosted: Tue Jun 24, 2014 5:02 pm    Post subject: Reply with quote

Ha-ha Smile

See there ARE different designs, LOL
My old mech. U-j doesn't have any screws. I think it's riveted. I appreciated your confidence that they are reliable... but didn't know what you were talking about, with "screws blowing up". Since they don't all have screws.

Anyway, I didn't think about going to the websites to look at pics, till I was done typing.
Thanks, Greg Smile

PS - But this will be helpful to you. Cause, now you can say, "If your U-j has screws, check them regularly" Smile
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DelCarpenter



Joined: 06 Nov 2008
Posts: 195
Location: Cedar Falls, IA

PostPosted: Tue Jun 24, 2014 10:33 pm    Post subject: Reply with quote

I use all three. I appreciate how easy the tendon is to replace.
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beaglebuddy



Joined: 10 Feb 2012
Posts: 720

PostPosted: Wed Jun 25, 2014 2:03 am    Post subject: Reply with quote

There is also the North system which appears to be a wider tendon with, ***apparently*** a wire running down the center of it? as the safety if the rubber breaks and you can get it with that cool shock absorber thingy.
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Bigwave65



Joined: 12 Oct 2010
Posts: 32
Location: Lake Erie

PostPosted: Wed Jun 25, 2014 10:18 am    Post subject: Reply with quote

better? no idea, but I own all 3 types. I use the mechanical w/shock(like iso loved) for my winter base-in my mind less chance of failure & less chance of a cold swim, I have an hourglass that I hardly use anymore due to the distortion & off center bolt(as mentioned earlier) also every failure I've ever had (3)was with an hourglass with catastrophic results to the board deck. The tendon is what I use now & I've had no issues in all the years with the tendon. I like the feel of the stiff tendon the best. I do replace them once they get about 3 years old. Nothing scientific here just my own conclusions with using all 3 types.
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