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 Sailing with the IDA rudder		  New Topic  Topic Locked
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bear
Admiral

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USA
909 Posts
Initially Posted - 05/23/2007 :  06:31:52  Show Profile
Yesterday I sailed Brandy for the first time this year, water
50 degrees, air temp 70. Winds I guess were around 10 knots
and very little gusts. The first thing I noticed was how well
the boat held its own going to windward. I didn't want to drill a hole in the new tiller to install my tiller tamer, so I used the tried and true bungee cord. The second thing I picked up on was how quick I lost the effectiveness of the propeller when making a sharp turn with the sails down. Appears to be a lot more turbulence with the IDA rudder. The biggest change so far was the positive and quick response when initiating turns, I really didn't have to use a lot of force when jibbing. Even returning to the dock the inputs were way more effective than with the old series one rudder..
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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts
Response Posted - 05/23/2007 :  09:16:52  Show Profile
Here's something that was posted last month...

<i>I purchased a C250 WK (#521) over a year ago, and when purchased, it had an IDA balanced rudder. Overall, I liked the performance of the rudder -- being better balanced, it requires far less helm effort than the original, but at large heel angles, there is not much rudder in the water [it's about 3" shorter than the original], which I believe contributes to the chronic round-up problems I have w/ the boat...

A short time ago, while sailing off the N. California coast, in moderate conditions (20kt wind, 6' swell w/ 2' wind waves), with the main reefed and a 110 jib, I rounded up in a puff, and my IDA rudder broke in half, immediately below the lower pintle. </i>
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Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts
Response Posted - 05/23/2007 :  10:01:33  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by dlucier</i>
<br />...and my IDA rudder broke in half, immediately below the lower pintle. [/i]
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">
I read that the IDA blade is solid polymer. If that's something like King Starboard, I wouldn't put it on my boat unless I sailed only on small lakes. It's not made for structural use or handling bending forces.
Edited by - Dave Bristle on 05/23/2007 10:02:01
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bear
Admiral

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USA
909 Posts
Response Posted - 05/23/2007 :  10:30:00  Show Profile
Don/Dave This IDA rudder is about eight inches longer than the original rudder, if weight has anything to do with the strength of the assy it took two of us to align it and drop it into place. I was aware of the failure noted above but I dont think we will see the conditions here that were noted during that particular rudder failure...
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Nautiduck
Master Marine Consultant

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USA
3704 Posts
Response Posted - 05/23/2007 :  11:47:36  Show Profile
I don't know about this rudder but I have worked with Starboard and similar materials. They are very heavy but not very strong.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.