What's not wrong with it is ........
The rudder is an airfoil shape like an airplane wing, so not too easy to get right. Here is a link to one that Dan made.....
http://purplesagetradingpost.com/sumner/macgregor-other-people/Other People-index.html
... one thing I wouldn't myself try making unless I really had to.
What is wrong with yours? I just remember the nicks so far, so must of missed the problem. We have an IdaSailor rudder and there are some pretty big chunks out of it from hitting the prop, won't go into a lot of detail how that happened

, and it still works great for us.
Good luck,
Sum
After I posted the request for measurements I did some checking,. Found an old thread, other then this one being 2 inches to short, 2 inches to narrow at the wide part and to thin, not a cotton pickin thing. LOL
Joel from ida has been a real dear. Obviously he would prefer to sell me a new rig for this and if i was swimming in money I might be willing to Break Out Another Thousand but my bank account being what it is.. gotta do it my self,.
Here is the second response from him.
[FONT=Helvetica, Arial, sans-serif]That is an original equipment upper rudderhead, tiller brackets and an aftermarket tiller (not our tiller, either).
It looks like a previous owner, in a fit of false economy, welded two pieces of aluminum to the original rudder cheek plates to extend them downward, allowing the Hobie rudder blade to be used and to keep the kick up configuration. I say false economy because the amount of work and the cost of welding the aluminum probably was close to the cost of simply buying a new blade from Macgregor in the first place.
Also, because the upper rudderhead has been drilled in two locations, it indicates that the lower gudgeon on the boat may have been damaged and relocated, requiring the upper pintle to be moved to accomodate the modified rudder assembly. Perhaps not, though not sure why they would drill the rudderhead twice otherwise. On a side note, the extra set of upper holes is probably how the water got into the rudder and caused the core rot you're dealing with too.
Unless your time is free, I would not spend much energy or materials trying to fix the various core rot and other problems that you have with those rudder parts.
I wouldn't trust that conglomeration to get you home safely on a big trip, but if you're day sailing with help nearby, a nice day on-the-water can be worth the risk.
Good luck, let me know if can help in some way further.
Fair winds,
-Joel[/FONT]
I had not thought about them being aluminum. How do you tell aluminum from SS if a magnet don't stick to either?
I finally got pics posted on blog. (jan 2 post rudder remix)
On one hand I could cut out the rot and redo this one, which is one heck of a lot of cuts to get it all out when i consider having to cut several more spots in the glass. or just make a new one and glass it, which is what I think I am going to do. The question becomes what kind of wood do I get? I'm thinking cypress. Have to check prices .