George,
See google>
triton: Message: Re: Rudder Shoe
*
If it comes up, there is a post from the guy who made extra castings (I believe) - may answer some of your questions.
Does mention a measured drawing in the PearsonAireil/Commander Manual that
states the rudder shoe's multi model use: "Alberg Ariel - Vanguard - Coaster" with Coaster added in a later hand. [Alberg 35 is NOT mentioned on the 'rudder shoe' drawing on page 171 in the Aiel/Commander Manual.]
Certainly, the bearing flange may have to be milled for a slightly different angle if the 'keel post' is at a different angle than the Ariel/Commander.
The rudder shoe on A-338 was in sorry shape for various reasons.
It was removed, sides straighten, and bondo/sculpted into a slightly beefier and symetrical version of the original.
It was then cast at a Richmond CA foundry in silicon bronze.
And this beefed up version subsequentlly dapped back onto Ariel's badly molded fiberglass keel heel - that also had to be rebuilt because they didn't get the fiberglass stuffed deep enough into the very end of the keel mold where the rudder shoe is mounted!
The casting is nothing like the humongous casting shown in the side by side photos above.
It is slightly larger in overall width, but imco can be easily faired into the hull. As it was on A-338.
Measuring off the casting mold (which is the slightly modifield heel fitting):
OA 11 3/8"
Width at widest point on top 3 1/4"
Inside width at top 2 3/4"
Bearing surface of flange the rudder shaft engages is 2 1/8" X 2 1/8"
This then describes the taper of the fitting on top.
The hole for the shaft is not drilled into the mold - nor are the side holes for the pins.
The angle of the flange off the straight tops of the fitting is 144 degrees.
This angle was not changed in the modification.
Obviously this flange is at right angle to the keel post when installed correctly.
This is the flange that may have different apparent angles on different Alberg keels than those mentioned.
[It would be no problem on a casting mold to add a small angle wedge if needed to correct the flange angle to 90degrees if the keel angle is different than those stated on the drawing for the Ariel/Commander, Vanguard and Coaster.]
Larger Alberg models, like the Alberg 35, may have proportionately larger rudder shoes.
GOOD LUCK!
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* interesting that the Tritons I've seen do not have a rudder shoe.
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The oversize cast rudder shoe in the above photos looks rather crude -
and imco the material looks more like brass than bronze.
I think it is better to have a new shoe cast in a known material.
My absolute choice is silicone bronze 655.
Everdur 655 bronze comes in plate form and can easily be welded.
It may be possible to have a pretty good rudder shoe fabricated from this bronze in a metal shop.
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