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Author
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Topic: Warped Rudder Blade
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Patrick Crooks
Member
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posted March 25, 2005 12:05 AM
   
I was getting everything ready so I could start sanding and when I placed the rudder blade down I noticed it was rocking side to side. I turn the blade over so it could rest on the other side and it didn't rock. So I pulled out my flat edge and placed it across the rudder and noticed that it is warped.Do you think this will cause a problem? Should I go to the local specialty wood store and get a new piece mohogony or teak and make a new rudder blade? What is the material, does anyone know? Patrick IP: 142.161.158.142 |
whited
unregistered
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posted March 25, 2005 02:11 PM
Your boat is a 14 or 16..right?
The early vesions were marine plywood but newer models and replacements are fibreglass.
I replaced my CL14's centerboard the year I bought it with CL's version and it had a bit of a bow in it. I was worried at first but whoever I talked to at CL didn't think it would be noticeable.
Can you put a straight edge on it and take a side profile picture to post here? The estimated amount of deflection at the center of the bow might help.
IP: 142.177.154.253 |
Patrick Crooks
Member
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posted March 25, 2005 02:53 PM
The rudder is for my sandpiper and here is the pictures as requested. The warp is about 3/16". As you can see in the last picture I have almost sanded out the prop rash.Patrick
"Barefoot"
IP: 207.161.61.113 |
elmet3
Member
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posted March 25, 2005 04:07 PM
If you are worried about turbulence, or uneven hydrodynamic effect, on opposite sides of the rudder, I don't think it will be noticable. Compared to the very pronounced camber of rudders built to maximize hydrodynamic effect (several inches for a rudder that size) the small curve on your rudder is pretty negligible. IP: 67.107.33.106 |
whited
unregistered
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posted March 25, 2005 04:31 PM
Sorry Patrick...of course you have a 'Piper. I do believe I need a program to keep everyone and everything straight.I went out to the garage and looked at my rudder. It has the same shape as yours and is bowed to the same degree. CL say the replacement blade is laminated epoxied mahogany. I see a bit of cloth showing through at the leading edge of mine where the previous owner must have struck something. i'll get to work on mine when it's warm enough to work outside. IP: 142.177.154.253 |
Eric
Member
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posted March 26, 2005 02:14 PM
Patrick I wouldn't worry about it! Not unless you are into hard core racing, and you need every once of speed. Once you've re-varnished it up, and it looks like a million bucks, you'll likely be the only one who'll know(except us here on the forum  ) Eric IP: 206.172.173.80 |
Ken
Member
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posted March 28, 2005 12:06 PM
Patrick, if you race your Piper you'll be able to make faster turns and tacks to port than the rest of the assymetrical fleet.On many keelboats, one side of the cast iron or lead keel might be a little flatter in shape. They were often cast lying down flat, and gravity made the top side flatter than the bottom side inside the mold. IP: 141.117.228.250 |
