I am thinking\planning of internally reinforcing the rudder shaft now as
well.
Perhaps if I imbeded a carbon fiber tube, in epoxy, in the rudder shaft I
could get the strength without all the weight.
I have been looking for a 1" od tube on the internet: ebay, cl, etc and
this is what I could find.
http://www.composite-resources.com/files/carbon-fiber-tube.pdf
I believe all I would need would be 16-18" to cover the potential weak spot.
Does anyone know of other sources for this tubing? I believe bicycle
fabricators are using it.
Steve
SunnyDay #571
_____
From: tuna-bounces at myfleet.org [mailto:tuna-bounces at myfleet.org] On Behalf
Of Joe Anglim
Sent: Wednesday, June 10, 2009 10:23 PM
To: tuna at myfleet.org
Subject: Re: [Santana 22] Carlos needs a new rudder!
I noticed a ring of substantial pitting on my rudder tube as well some time
back. I installed an inner stainless sleeve inside the weakened tube to
take the strain and hopefully avoid a failure. The inside tube is a close
fit, and is a heavy enough wall thickness to be of comparable strength. In
addition to the through-bolt at the head, I drilled holes for two more
through-bolts in the body of the rudder, then faired over the bolts.
Unfortunately it does add a bit of weight, but it's an alternative to
sourcing or building a new rudder.
Joe
Hania, #478
From: tuna-bounces at myfleet.org [mailto:tuna-bounces at myfleet.org] On Behalf
Of Nancy & Pat Broderick
Sent: Wednesday, June 10, 2009 12:57 PM
To: Steve
Cc: 'Mark Lowry'; 'S22 Santana22 List'
Subject: Re: [Santana 22] Carlos needs a new rudder!
Steve,
It is stainless. It is prone to corrosion. If you've got enough to look
(even "look") like a hole all the way through, my judgement would be a new
rudder sooner rather than later. Without an expensive exam there's no way
to know how far things have gone.
And you're right, they will fail when you need them most because that's
usually when they're being asked to steer in high winds and currents.
Pat
ex-Elaine
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