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 Post subject: Rudder Sharpening
PostPosted: Thu Aug 12, 2004 6:57 am 
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Site Rank - Deck Hand

Joined: Thu Aug 12, 2004 5:04 am
Posts: 1
My rudders hum and screach when going fast. I saw in a magazine a tool to sharpen rudders to stop this. Is that all it really takes is to sharpen them? How can i do that to my rudders without buying the tool? And if so how?
Thanks for your help!


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 Post subject:
PostPosted: Thu Aug 12, 2004 1:41 pm 
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Hobie Approved Guru

Joined: Mon Jul 14, 2003 7:11 pm
Posts: 4611
Location: Detroit, MI
A pair of scissors can be used if you're careful (plastic blades only). Just hold one blade of the scissors in both hands and use it like a scaper down the trailing edge of the blade, holding it at a shallow angle.

If you're really serious about it, or if you have fiberglass blades (including EPO's), you need a file, a sanding block, 320 / 400 / 600 grit wet or dry sandpaper and a lot of elbow grease.

There's a "bulb" on the trailing edge that causes the hum. You want to fair that into the rest of the blade. You don't want to put a sharp edge on the trailing edge of the rudder. A 1/16" squared off edge works much better and is not as easily damaged.


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 Post subject: Try this...
PostPosted: Tue Aug 17, 2004 8:52 pm 
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Joined: Tue May 27, 2003 12:44 pm
Posts: 9016
Location: Oceanside, California
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From the Hobie Cat support area.


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