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post #1 of 10 Old 08-23-2006 Thread Starter
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looking for advice / irwin 37

bought a 37 Irwin about a year ago .and love the boat.the only problem I haven't been able to solve is the way it wanders .under power you have to be corecting all the time.Under sail it dosn't seem to be as bad but is still a pain..Wonder If it is a common problem with the 37
and if there is a cure??Thanks for your time

Last edited by gringo50; 08-23-2006 at 10:42 PM. Reason: clarifi request
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post #2 of 10 Old 08-25-2006
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Not sure if this is valid or not, but here's my 2c worth.
My last boat was a full keel and I had to pay attention to the helm quite a bit, though not so much as to make it a pain. And under sail she was fine if the sails were balanced. She was a ketch and the first boat I'd owned, so I had no reference point to go from.
Now I have a fin keeled boat and the difference in tracking is dramatic, like a train on rails now.
So, the answer to your question may be more to do with your keel design, and maybe propeller related too when under power. Under sail you should strive to balance your sails, as this will have a profound effect on the steering.
Hope this helps.
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post #3 of 10 Old 08-25-2006
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I would take a close look at the rudder post connections, bearings and steering linkage - whether mechanical or hydraulic. Excessive play in your rudder may be the cause of boat wander.

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post #4 of 10 Old 08-25-2006
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I'd agree with TrueBlue...it is probably excessive play in the steering system. This play may not be as evident under sail, as the pressure of the sails against the rudder, and the weather helm of the boat may eliminate the effects of the play in the system.

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post #5 of 10 Old 08-25-2006
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swirls

Quote:
Originally Posted by sailingdog
I'd agree with TrueBlue...it is probably excessive play in the steering system. This play may not be as evident under sail, as the pressure of the sails against the rudder, and the weather helm of the boat may eliminate the effects of the play in the system.
..plus you don't have the prop wash turbulence hitting the rudder.
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post #6 of 10 Old 08-25-2006
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I'd also check the rudder. It is possible, unlikely but possible, that some PO replaced the rudder and what's on there is simply wrong for the boat. I think we've all seen stranger things happen.
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post #7 of 10 Old 08-25-2006
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Originally Posted by hellosailor
I'd also check the rudder. It is possible, unlikely but possible, that some PO replaced the rudder and what's on there is simply wrong for the boat. I think we've all seen stranger things happen.
Very true...some very strange things have been done by PO's.

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post #8 of 10 Old 08-25-2006
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most likely it is the prop wash that effects the rudder. I owned a ranger 33 that had the same problem under power. The prop was within 2 feet of the rudder. My current J37 has the prop 5 feet away and doesn't affect the steering underway.
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post #9 of 10 Old 08-25-2006
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Prop wash: Yeah, for that matter the PO might have installed a "bigger so it must be more powerful" prop, which could be hurting things too.
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post #10 of 10 Old 08-25-2006
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hard-a-port !

Quote:
Originally Posted by gringo50
bought a 37 Irwin about a year ago .and love the boat.the only problem I haven't been able to solve is the way it wanders .under power you have to be corecting all the time.Under sail it dosn't seem to be as bad but is still a pain..Wonder If it is a common problem with the 37
and if there is a cure??Thanks for your time
Heck mine doesn't wander under power. It goes to port. I think it has something to do with the prop wash and the wing turbulence together.

-- neal
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