Cal 21 Owners - Page 9 - SailNet Community
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post #81 of 93 Old 05-23-2014
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Re: Cal 21 Owners

I have begun construction of the keel plug using a very large piece of oak that was milled from a tree that got blown down a few hurricanes ago. I have yet to lower the keel when boat not on water, and have not examined closely the keel slot, except from the cockpit. Before I go much further in trimming the oak I need to understand how it sits in or at the slot. The drawing in Rod's earlier post(1 of 4) shows the plug mostly in the slot and the keel well with only the tip of the forward steel plate touching the keel. It also looks like the plug is tapered going forward as well as aft from the flat section. I am unable to picture what keeps the plug from riding up higher into the well or slot. Relying on Rod for more edification on the famous, or infamous, Cal21 keel plug.
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post #82 of 93 Old 05-26-2014
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Re: Cal 21 Owners

That steel rod that I mentioned, and should show in both my sketch and the drawing that my Dad made of our keel-plug, is what keeps the keel plug fro mriding up. The plug is also prevented fro mriding up by the shape of hte plug.... if you look at the shape of the CAL 21 keel well from below, you will note that the forward end of the large hole in the has a recess if I recall to allow the ballast bulb to clear the forward end of the cockpit opening, and the keel plug sits up in that notch.... (now, understand..... I'm relying on my memory here!!) and that stops the plug from rising up and the steel rod stops it from dropping down (Originally a length of bungee cord held the plug in position there (lead from top of keel plug to underside of the cover over the top of the cockpit opening, but that did not have enough pull to hold the plug into the slot, so the steel rod was substituted). I'll try to sketch how this all works.... I really wish that I still had a CAL 21 to take a picture of (would need to do this hauled out..... might need to lift her to lower the keel and insert the plug to really explain what I mean?)

One note, in the drawing below, there are 2 different angles shown for the metal plate at the forward end of the keel plug, I believe the 60 deg figure is the correct one.
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CAL 21 Keel well_plug fit.jpg   CAL21_keel plug install_dwg.jpg   plug2.jpg   keel plug-labeled.jpg  


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NODROG
1970 CAL 21 (sold 2008)
Other boats
SUNBIRD
1979 O'DAY DS II
BLUE BIRD
1969 O'DAY Widgeon
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post #83 of 93 Old 05-26-2014
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Re: Cal 21 Owners

Thanks Rod, I already cut the angle at 45 degrees. Hope it doesn't throw the length off if I trim to 60 degrees. Wish it wasn't so expensive to have it lifted high enough to drop the keel for a close look. May have to just bite the bullet. Guess I can always add a little stock at the aft end of the plug. Getting close. Any comments about the taper of the plug?
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post #84 of 93 Old 06-26-2014
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Re: Cal 21 Owners

RJOHNSON,

Any ideas on why the transom wasn't a solid piece of plywood or solid with the exception of a port to view the hull number?

Looks like it might have been 2 pieces of 3/4" plywood?

Olin
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post #85 of 93 Old 06-27-2014
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Thumbs up Re: Cal 21 Owners

Alas, I feel like such a lazy sailor bum Have been sailing off a dock since beginning of June or so. Weather was finally turning and the river was calling so I hitched her up and drove down to my friendly marina Explained that I wanted the boat lifted high enough to drop the keel out. They didn't seem to want to put her on jacks so they lifted her higher in the slings. They took over and sledged the keel bolt out. But the keel was wedged in and didn't want to come out. Time seemed to be becoming an issue and the keel trunk was moving too much for my comfort so we jointly decided that everything was "probably" OK and managed to line up the bolt hole in the keel with that in the trunk and eventually hammered the bolt back through. Dropped her in the water, crossed fingers, and had a short conversation with Neptune.
It's about a 20 minute motor out the Rondout to the Hudson, and then enough river to enjoy sailing. Have enjoyed different conditions, but think I like 10 mph breeze in same direction as tide. Bumping around in waves makes my mind turn to the stories I have read about lost keels
Definitely have a plan to examine the total keel at some point, but truth be told I'd rather sail than work on boats when the weather is right.
As a final note, I am getting used to her tenderness. Still lots of things needed to make her sail better. This fall I should have everything needed to release the wire from the keel, but then I may need a sea anchor to slow her down!
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post #86 of 93 Old 06-27-2014
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Re: Cal 21 Owners

Olin.
on our 1970 model the plywood was more like 5/8" and consisted of a 6-8" plank across the top that backed up the hull-deck joint across the top of the transom and also the bolts for the top pintle and hte backstay chainplate. Then there was another piece sized to back up the bolts for the outboard bracket, and one more smaller piece located to back up the bolts for the lower pintle. The plywood used was plenty strong enough for the job, as ours never gave us any trouble over 38 years. This is actually a quite normal design/construction for sailboat transoms, only using plywood in hte localized areas of need. I've attached the best picture of the area that I have, doesn't show it too well, but...!

I guess that I could include one very scary observation though......... I never did find ANY evidence that the backstay chainplate was through bolted! As far as I can tell (and Richard Fuller, owner of the old CAL 21 web-site) said the same. It appears to have used wood screws? but they must have been short ones? Well, whatever, it never loosened up in the 38 years we owned NODROG.
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lazerette.jpg  
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NODROG
1970 CAL 21 (sold 2008)
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SUNBIRD
1979 O'DAY DS II
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1969 O'DAY Widgeon
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post #87 of 93 Old 06-27-2014
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Re: Cal 21 Owners

Your transom wood placement is the same as was in mine. My top piece was pretty well rotted out.

There were no blots on the chain plate, only short wood screws. I think bolts make more sense because the port and stbd chain plates were bolted.
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post #88 of 93 Old 08-14-2014
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Re: Cal 21 Owners

Hey! I am glad to see that this forum is still up and running strong. Since my last post (some time ago), I have relocated to Australia and gifted my Cal21 to my brother. He is planning on adding bulkheads that were previous removed. Does any one have a good photo of the bulkheads running across the midsection and aft? There is quite a bit of flex in the hull. We rebuilt the v-berth so there is structure in the bow. I know what we took out was not the "original" outfitting.
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post #89 of 93 Old 08-15-2014
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Re: Cal 21 Owners

I'll see what I have, I know I don't have dimensions..... but plenty of pics! (38 years of CAL 21 ownership wil ldo that I guess?) However, not all of thse are our old boat. OK, none are.....
I'll post more soon! (hopefully I'll find some of our boat.)
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ViewOfCabinInCal21-500.jpg   piccal21102e.jpg   piccal21102d.jpg   CAL21_interior.jpg   CAL21_5.jpg  



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NODROG
1970 CAL 21 (sold 2008)
Other boats
SUNBIRD
1979 O'DAY DS II
BLUE BIRD
1969 O'DAY Widgeon

Last edited by rjohnson; 08-15-2014 at 03:30 PM.
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Re: Cal 21 Owners

More pictures and drawings, unfortunately... still can't quite get those drawings from the old brochures to come out bigger. I'll try re-scanning and post later.
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NODROG_interior.jpg   NODROG_interior2.jpg   CAL21_back.jpg   1973 SAIL Mag listing_CAL 21_interior.jpg   21_Profile.jpeg  



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NODROG
1970 CAL 21 (sold 2008)
Other boats
SUNBIRD
1979 O'DAY DS II
BLUE BIRD
1969 O'DAY Widgeon
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