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post #1 of 10 Old 02-21-2012 Thread Starter
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coronado 30

I just picked up an old coronado 30' for a parts boat. There is some kind of trim tab on the trailing edge of the fin keel. It is moved by a lever in the cockpit from port to starboard depending on which tack you are on. I will probably never sail this boat so i have 2 questions. First, i am assuming that the fin gives you extra "lift" to windward? How much does it actually help? Second, does anybody know of a coronado owners group so i can see if anybody wants anh of the mechanism? I can imagine it would be hard for someone restoring one to find these parts and i wouldnt want to scrap them. Thanks -John
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post #2 of 10 Old 02-22-2012
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Not on topic, but, I was wondering how you are going to go about disposing of the hull when you are done parting out the boat?

On topic here is a link talking about keel trim tabs: Trim tab keel, why not? - Boat Design Forums
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post #3 of 10 Old 02-22-2012
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Quote:
Originally Posted by sidewinder585 View Post
I just picked up an old coronado 30' for a parts boat. There is some kind of trim tab on the trailing edge of the fin keel. It is moved by a lever in the cockpit from port to starboard depending on which tack you are on. I will probably never sail this boat so i have 2 questions. First, i am assuming that the fin gives you extra "lift" to windward? How much does it actually help? Second, does anybody know of a coronado owners group so i can see if anybody wants anh of the mechanism? I can imagine it would be hard for someone restoring one to find these parts and i wouldnt want to scrap them. Thanks -John
Back in the late 60's, early 70's, there was a lot of work done on trim tabs. They fell into disfavour because they added a lot more complexity and uncertainty than benefits. If you were "America's Cup" expert they could give a slight advantage but otherwise they were simply more trouble than they were worth. The IOR essentially outlawed them.

I, myself, personally intend to continue being outspoken and opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.
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post #4 of 10 Old 02-22-2012 Thread Starter
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[QUOTE=Barquito:835259]Not on topic, but, I was wondering how you are going to go about disposing of the hull when you are done parting out the boat?

Basically chainsaw and a dumpster... unless you want it? Lol
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post #5 of 10 Old 02-22-2012 Thread Starter
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Quote:
Originally Posted by SloopJonB:835423
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Originally Posted by sidewinder585 View Post
I just picked up an old coronado 30' for a parts boat. There is some kind of trim tab on the trailing edge of the fin keel. It is moved by a lever in the cockpit from port to starboard depending on which tack you are on. I will probably never sail this boat so i have 2 questions. First, i am assuming that the fin gives you extra "lift" to windward? How much does it actually help? Second, does anybody know of a coronado owners group so i can see if anybody wants anh of the mechanism? I can imagine it would be hard for someone restoring one to find these parts and i wouldnt want to scrap them. Thanks -John
Back in the late 60's, early 70's, there was a lot of work done on trim tabs. They fell into disfavour because they added a lot more complexity and uncertainty than benefits. If you were "America's Cup" expert they could give a slight advantage but otherwise they were simply more trouble than they were worth. The IOR essentially outlawed them.
Thanks for the info both of you. I was using the wrong term and couldn't find anything.
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post #6 of 10 Old 02-22-2012
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Yahoo group and money for the keel...

Yahoo has a Coronado group I used to be a part if. Heres a tip, depending on the year and build you may have a lead keel.
When I scrapped my 25 I got 2000 for the lead in the keel. Good luck..
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post #7 of 10 Old 02-22-2012 Thread Starter
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Even if its cast iron its still worth a few hundred. Thanks for the hint though. But the real value to me is the two good winches, four opening ports, anchor and rode, the mast is the exact same length as mine so if its in good shape i will switch since my masthead fitting is junk... i hate cutting up an old boat, but the decks are rotten the rudder is gone and there is no motor or sails... so there is no way she will ever be worth fixing. Especially with the reputation for poor build quality to start with. I can move her with my pickup and trailer and they are going to load her for free so hopefully i will not have to much into her. I have actually run across 2 other free boats in my area but they were both to pretty and rare for me to cut up... this one is way past gone though
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post #8 of 10 Old 02-23-2012
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Tha'ts alot of chainsaw work..your a braver man than I to buy or even take a free 30-foot boat for parts and be willing to dispose of all that glass when your done...Now if I had my own house and a a big yard and maybe a forklift and just had to rent a dump trailer or had a dump trailer and just had to rent a forklift/mini ex or something then i guess after you sell the lead you would have some money left over after also paying the guys at Mt. Trashmore...I can see it...maybe...nah...sounds too much like work! But as they say...whatever floats your boat.....(the one you are fixing up).
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post #9 of 10 Old 02-24-2012 Thread Starter
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Well, i got in touch with a landfill and they want 150 to take it as long as there are no tanks in it. So i dont have to cut it up anymore.
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post #10 of 10 Old 04-06-2012
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Re: coronado 30

Which state are you in no landfills take boats that size in denver? Are you going to keep the trailer?
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