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  why does my boat list to the right?

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Author Topic:   why does my boat list to the right?
george nagy posted 07-01-2002 03:47 PM ET (US)   Profile for george nagy   Send Email to george nagy  
My 1987 18' outrage seems to be listing to the starboard side while planing. I don't really remember it doing this so much before I repowered. The batteries are in the console and there were only two of us on the leaning post. I wonder if it tis due to torque steer from the cr motor? This listing is effecting the performance while underway. I don't really want to install trim tabs. Any ideas?
Bigshot posted 07-01-2002 03:56 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
Try messing with the trim tab under the cavitation plate. Although you are going straight the engine might be pulling some to the right. if you have hydraulic steering you won't even notice the engine pulling, etc.
george nagy posted 07-01-2002 05:05 PM ET (US)     Profile for george nagy  Send Email to george nagy     
good idea, since this engine was originally installed as a twin it might need adjustment. Does anyone know the setting on thiers?
Bigshot posted 07-01-2002 05:14 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
I think it is a 9/16" just carry one and keep trying. Start at one extreme and work to the other. If not that then......?
Tom W Clark posted 07-01-2002 09:12 PM ET (US)     Profile for Tom W Clark  Send Email to Tom W Clark     
George,

You are experiencing a list caused by prop torque. This has been discussed several times before. These boats usually list to port but because you have a counter rotating motor, your boat list to starboard. This is pretty normal.

Do as BS suggests and adjust the trim tab. There is no one perfect setting. You need to experiment with your boat. Be sure you have the trim tab for the CR motor and not the normal one.

jimh posted 07-01-2002 11:12 PM ET (US)     Profile for jimh  Send Email to jimh     
When you observe the boat leaning one way or the other, check for a cross wind. It is not unusual for a Whaler to appear to "lean" into the wind, but this phenomenon is better explained by the boat being held at a slight upwind course in order to make good the chosen course, the cross wind blowing the boat slightly downwind.
padrefigure posted 07-02-2002 09:12 AM ET (US)     Profile for padrefigure  Send Email to padrefigure     
Will adjusting the trim tab take all of the torque list out? I have the same issue with my OR18. It is more noticeable when lightly loaded. Put 5 teenagers with tubes, skis, and coolers and the list becomes un-noticeable.
Tom W Clark posted 07-02-2002 10:47 AM ET (US)     Profile for Tom W Clark  Send Email to Tom W Clark     
No, adjusting the trim tab will not remove all of the list but it may help. A trim tab can add to the problem if it's out of whack.

The trim tab exists to help reduce or eliminate the torque steer which is a different (but related) phenomena.

Adjusting the loading of the boat will be the ultimate correction for this listing problem.

Highwater posted 07-08-2002 11:51 AM ET (US)     Profile for Highwater    
Will the torque be any less if the propeller has more than three blades? I don't know why that would be true, but I thought that I remembered reading something about that.

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