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Stern Slide

Old 08-26-2006, 07:03 PM
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Default Stern Slide

I have a boat handling question.

I put a custom (homemade) offset rudder and rudder bracket on my Kyosho .15 nitro deep vee. Ever since I put on the new hardware I am having a problem with the stern "sliding" on my right turns. Any thoughts on the turn fin config. or any other mods that may prevent this?

Thanks
Jefe
Old 08-26-2006, 08:30 PM
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Default RE: Stern Slide

Hi Jefe,
If the material is too flexible to hold up to the forces that the water imposes upon it, it may bend in an unwanted way while running fast. Do you notice any "wiggle" of the stern at high speeds when the boat is going straight? If so, your new rudder is too flexible.
How 'bout some pics? Is the rudder mounted vertically? is it "raked" forward or aft from the side view? Forward rake of the rudder will pull the stern down into the water and raise the bow during a turn, and aft rake will lift the stern and push the bow down in a turn.
If your boat is "mushier" in the turns than it was before your mod, maybe look to a bit of forward rake before adding the extra drag of a turn fin.
Have fun,
Will
Old 08-26-2006, 09:18 PM
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Default RE: Stern Slide

Thanks for the reply. I am using aluminum for the rudder and I suspect that you are correct...it is too flexible. I have a slight bit of forward rake on the rudder. I will try to get some pictures up soon.

As for the turn fin, it is already on the boat, it is a stock fin. Any adjustments I can make to that to help counter-act the sliding?

Take Care
Chris

PS. No noticable wiggle while wide open.

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