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Old 26-05-2011, 14:17   #1
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What is it ?

Anyone know what the thing sticking up on the rear left transom is?

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Old 26-05-2011, 14:19   #2
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Re: What is it?

Servo pendulum vane. Wanna say navik.
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Old 26-05-2011, 15:03   #3
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Re: What is it?

Powder Skis, because ya never know when your gonna get a dump.
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Old 26-05-2011, 15:52   #4
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Re: What is it?

^ lol

What is a servo pendulum vane?
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Old 26-05-2011, 15:56   #5
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Re: What is it?

http://www.selfsteer.com/products/navik/index.php
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Old 26-05-2011, 16:08   #6
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Re: What is it?

Does such a thing work on a multihull? I've had trouble on light monohulls as the vane senses only apparent wind - which swings forward with any speed increase, back in a lull. Snake wakes, uncontrolled gybes, unintentional heaving-to. Madness. Slow monohulls, overloaded multihulls maybe, can work well though.
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Old 26-05-2011, 17:21   #7
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Re: What is it?

Relatively useless on a multi.
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Old 26-05-2011, 17:29   #8
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Re: What is it?

Quote:
Originally Posted by Serenity_ View Post
^ lol

What is a servo pendulum vane?
Let me google that for you

; -)
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Old 26-05-2011, 17:35   #9
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Re: What is it?

thats really interesting. I was wondering if a windvane could be installed on a cat.
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Old 26-05-2011, 17:50   #10
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Re: What is it?

Wharram once had plans on the net, but now they sell them.

Windvane Self Steering for Wharram Catamarans | James Wharram Designs

Does it work? Not on most cats I bet.
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Old 26-05-2011, 20:26   #11
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Re: What is it?

Quote:
Originally Posted by tager View Post
Servo pendulum vane. Wanna say navik.
Looks more like some model of a WindPilot.

Windvanes don't work so well on faster cats but results would depend on the boat.
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Old 28-05-2011, 18:46   #12
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Re: What is it?

Quote:
Originally Posted by sarafina View Post
Thanks! Led me to another sailing forum.

Thanks to everyone else for the answers and discussion. I'm having a hard time seeing how this works but it must work for them or they wouldn't have it.
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Old 28-05-2011, 19:20   #13
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Re: What is it ?

Some species of windvane, but I don't see a LEFT side.
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Old 28-05-2011, 19:35   #14
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Re: What is it ?

I have owned my Westerly for five years and am need of help. I have been trying to replace a rubber knob that screws into the overhead in fornt of a port light. Its purpose is to keep the window open, the edges are soft enough to hold the open port quite effectively. I would very much appreciated anyone telling me what it is called and where I could purchase some. I tried the Westerly owners forum but no joy there.
Thanks.
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Old 28-05-2011, 19:55   #15
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Re: What is it?

Quote:
Originally Posted by Serenity_ View Post
but it must work for them or they wouldn't have it.
Au contraire, Dave.
Lots of people get some bug in their bonnet and spend thousands of dollars on some usless bit of kit. Why does he need a wind vane when he has solar and a wind generator?

The cruisers VHF radio nets in the Caribbean are full of stuff that people are trying to redeem a few cents. Wind vanes, wind generators and anchors are the biggies.
Its interesting to listen to to work out what doesn't get offered... thats the stuff that works.


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