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Post by renegade27 on Sept 7, 2009 13:14:50 GMT
Anyone fair their cast iron keel or have it done?
How big a job is this (for reasonable shape)?
How big a difference have you found?
Thinking about getting rid of some of the flats on my JSO 35 shoal keel and rudder.
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Post by renegade27 on Mar 20, 2010 13:49:51 GMT
Thought I'd see if anyone on now has any experience.
Make sense to attempt to fair the steel keel? Anyone try it?
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Post by MartyB on Mar 20, 2010 18:29:21 GMT
I have not yet, but from what I have been told etc, fairing ANY keel, lead, steel/iron, wood etc will help performance.
Marty
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Post by renegade27 on Mar 21, 2010 15:39:37 GMT
I agree, Marty. Got to help performance.
I understand that it is much more difficult with steel as it can't be ground down, though.
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Post by MartyB on Mar 22, 2010 15:22:16 GMT
I've heard and read that Iron is harder than lead, I did not realize it was the grinding down part! BUT, with that in mind, not sure that grinding down is what I would want to do to either lead or iron as you would lose some wt down there. THen again, neither would probably lose that much overall weight. You might try www.computerkeels.com/ for some info. They are based on the east coast of the US. But do have templates and info for fairing keels. I do know from reading on there site you need to do some filling of an iron keel vs lead. This may be the grinding part vs filling I did not know about. Obviously filling makes the keel a bit wider, grinding thinner........BUT, to me if you can get an airfoil shape of the hull 1/4-1/2" or about a cm difference would not make that much performance difference for most of us. Maybe on the Volvo 70 style boats, but not sure our Jeanneaus would make that much difference. Marty |
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