SailNet Community

SailNet Community (http://www.sailnet.com/forums/)
-   Gear & Maintenance (http://www.sailnet.com/forums/gear-maintenance/)
-   -   Home made rudder for Catalina 22 (http://www.sailnet.com/forums/gear-maintenance/94217-home-made-rudder-catalina-22-a.html)

sevseasail 11-18-2012 06:14 PM

Home made rudder for Catalina 22
 
As many rudders for the Cat 22 fail, so did mine.
After some research and considerations I decided to make my own.
Check it out and let me know what you think please.

Here's a link to my blog where I documented the process.
Olowaili

CalebD 11-18-2012 09:39 PM

Re: Home made rudder for Catalina 22
 
Looks pretty good Guillermo.

You mentioned that your new rudder seemed more buoyant than the original. There may be some hunks of metal in the lower core of the original that helps keep it more at neutral buoyancy. Maybe not. Maybe they just coated the core with a thicker covering of resin.

Did you use any glass cloth to cover your plywood core with the epoxy? I would suggest a minimum of one coat of cloth encased in resin, the more the better.

I say this because plywood, even "marine" plywood is a poor choice of building material for anywhere under the water line. Yes, I know that Catalina probably used it for the original but it is still a poor choice because as soon as it gets wet it will start to de-laminate and rot. Hence, the thick outer coating is necessary.

If you take your nicely made new rudder out of the water when you are not using the boat it should help keep it dry.

sevseasail 11-19-2012 05:54 PM

Re: Home made rudder for Catalina 22
 
Thanks for your reply!!

I did coat the rudder with one layer of glass mat plus another layer about 1ft over and under the water line, also it has two coats of epoxy resin, 4 coats of 2 part epoxy barrier coat and 3 coats of bottom paint; I trust this will help keep the interior filler and core dry, also I per-drilled the holes for the hardware bolts with 7/8" bit, filled with epoxy and re-drilled with the correct size bit to prevent water getting into the core via the hardware bolts (that was the problem with the original one). I figure it's not perfect, but, after seeing how catalina built the original, I can assure you this one should last at least as long as the original lasted; so about 12 hrs of labor for 30 yr of rudder is not too bad.

Lou452 11-20-2012 10:34 PM

Re: Home made rudder for Catalina 22
 
I have heard this small leading edge under the boat is very good but not legal for a race Interesting Yes ?? happy Thanksgiving, Lou

tschmidty 11-21-2012 05:27 PM

Re: Home made rudder for Catalina 22
 
I'll just in and say that it looks very nice. And the leading edge will make the rudder more balanced and take less effort to steer in all conditions but especially with weather helm.

For whatever it's worth, here are the catalina rules, so since it is not approved anyway you'd be stuck but the leading edge is not allowed to go under the hull.
B. RUDDER


1. Rudders shall be of fiberglass-foam-wood composition and from an approved mold. Rudders manufactured for C-22s by Catalina Yachts prior to the publication of these rules are considered to be approved. In the case where the rudders are obviously different from those now being manufactured, proof of origin may be required.

2. Changes to the rudder to affect weight distribution will not be allowed.

3. Beaching rudders will be allowed provided they comply with B-1.

4. The leading edge of the rudder blade shall not extend forward of the near vertical line of the transom. ( or, no portion of the rudder blade shall extend to under the boat)

chip 11-21-2012 06:40 PM

Re: Home made rudder for Catalina 22
 
Nice rudder.

I wouldn't worry about the buoyancy. It's super annoying on a kickup rudder, but if you're not taking yours on and off all the time it's probably fine. I refaired mine last year and I keep saying that I'm going to rig a downhaul on it to help keep it down while I'm tightening the bolt that keeps it down, but I haven't gotten around to it yet.

There are pics here:
More Results | Sailing Fortuitous

CalebD 11-21-2012 07:05 PM

Re: Home made rudder for Catalina 22
 
Seems that you followed all the best practices when making your rudder. I hope it lasts a long time.

Quote:

Originally Posted by sevseasail (Post 950610)
Thanks for your reply!!

I did coat the rudder with one layer of glass mat plus another layer about 1ft over and under the water line, also it has two coats of epoxy resin, 4 coats of 2 part epoxy barrier coat and 3 coats of bottom paint; I trust this will help keep the interior filler and core dry, also I per-drilled the holes for the hardware bolts with 7/8" bit, filled with epoxy and re-drilled with the correct size bit to prevent water getting into the core via the hardware bolts (that was the problem with the original one). I figure it's not perfect, but, after seeing how catalina built the original, I can assure you this one should last at least as long as the original lasted; so about 12 hrs of labor for 30 yr of rudder is not too bad.


sevseasail 11-21-2012 08:08 PM

Re: Home made rudder for Catalina 22
 
Thank you all for the replies... Yeah.... I'm not worried at all with the racing rules, I do not race nor never have care about it (yes, I have done a few regattas back in the day), have not cared in 25 years, I doubt I will start now...
As far as the performance with the extended leading edge; the test run proved to be very beneficial, hopefully I will have some time this weekend to do more sailing.


All times are GMT -4. The time now is 04:42 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012