I have a broken rudder on my h16. I have access to some free 3/4 inch marine grade plywood and was thinking of making one myself using the good one as a template. My thoughts were to cut it and shape it using a power sander and then using some fiberglass resin to protect it. Has anyone out there ever done anything like this or is there something I am missing considering I will use wood. I have bulit a similar rudder for a sunfish with no major pronlems. Any thoughts/suggestions would be appreciated. I imagine this is not class legal but I will not be racing anytime soon.
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Griff
Hobie 16
Tuscaloosa, Alabama
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wooden rudder
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Posted: May 05, 2011 - 09:22 AM
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- Rank: Mate
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Posted: May 05, 2011 - 09:54 AM
Sandal wood would be good to use
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Nacra 5.2
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Posted: May 05, 2011 - 10:38 AM
You could probably do it, I would also lay some fiberglass mesh in to reinforce and stiffen the rudder a bit. Marine grade plywood definitely needs a seal coat whereever you cut it and at the edges or it will absorb water and swell.
I believe that most people use a lighter wood than that though, I've heard of quite a few cedar or balsa daggers and rudders out there with 3-5 layers of glass on them, but I am pretty sure you would have to put stringers (fiberglass plates) in the main body to provide stiffness and strength.
I would think that you should be able to get a used H16 rudder really cheap if you put a want add here.
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Dave Bonin
1981 Nacra 5.2 "Lucile"
1986 Nacra 5.7 "Belle"
Winnipeg, Manitoba, Canada
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Posted: May 05, 2011 - 03:04 PM
First off it would be class legal for the Hobie 16, but not most other classes.
1.1 Rudder blades made of another material, yet
conforming to the size, shape and minimum
weight of the standard rudder blades, may be
used. Rudder blades must conform within the
minimum and maximum dimensions that are
found within the profile plans. Profile plans are
available through the IHCA.
1.2 The maximum thickness of a rudder blade(s)
shall not exceed 1.015 in. (25.8 mm.), tapering
over a distance of 2 ft. (60.96 cm) to a maxi-
mum thickness of 1/2 in. (12.7 mm), 2 in. (50.8
mm) from the bottom tip of the rudder. These
dimensions are for reference purposes only.
Please refer to profile plans for exact dimen-
sions. Profile plans are available through the
IHCA.
They have to weigh as much as an EPO rudder, about 3 pounds. The original EPO rudders have a foam core and about three layers of glass and epoxy over that. So you don't need to make the core all that strong if you put enough glass over the top.
That being said a plastic rudder costs $25 to $55 depending. Shipping is usually around $25. For what it's worth as stock rudder weighs about 7 pounds. -
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Posted: May 05, 2011 - 04:01 PM
The oddball home built rudder on one side will detract from the resale value of the boat. I have white rudder for $75 including shipping. Pete 909-800-5237 -
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Posted: May 07, 2011 - 09:08 AM
Differently go with replacements, the plywood even covered with glass and resin is not worth the hassle
Not to take the sale away from Pete who is a great source of parts, but there a pair for sale on Ebay with a day or so to go on the bid.
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Jeff O
N5.0
solcat 18(sold),
N5.2,
H16
Camarillo CA
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Posted: May 11, 2011 - 12:00 PM
I bult a rudder out of plywood and it turned out well until I put the fiberglass on it. This was my time working with fiberglass and it turned out looking lack a hack job. The plywood blank looked great and I was really excited about it until i glassed it. I guess I need more experience working with fiberglass. I ended up bitting the bullet and buying a pair of used rudders on ebay. I now have a spare hobie rudder and a spare rudder that is ugly as h### but useable if I am ever in a bind!
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Griff
Hobie 16
Tuscaloosa, Alabama
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