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Catalina/Capri 25/250 Sailor's Forums

Catalina 25 Specific Forum

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quintjk
Deckhand

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USA
16 Posts

Initially Posted - 06/19/2005 : 15:49:27

Does anyone know about the availability of a 25 Cat Model. I've
seen the 1/2 ship type but was unimpressed. It would be a nice
decorator/conversation piece. It would be nice to see the boat
sitting on the mantle.

Edited by - on

John G-
Admiral

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793 Posts

Response Posted - 06/19/2005 : 16:34:17

Although I would be happy with a “half hull” I cannot find one for a Fin Keel, however when Frank posted the regatta plaque it is a Fin Keel half hull.
Could some one tell me where that half hull came from?
Thanx

Edited by - on

ClamBeach
Master Marine Consultant

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3072 Posts

Response Posted - 06/19/2005 : 18:33:15

I've seen some advertisements from craftsmen that will make any ship model you want (half or otherwise). I imagine it would cost several boat units to have something custom made one-off.

I'll nose around a bit and see if I can find one. (advertisement that is)

Edited by - ClamBeach on 06/19/2005 18:34:08

pjeffarch
Navigator

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USA
135 Posts

Response Posted - 06/21/2005 : 22:24:07

CD has half-hull models.

Edited by - on

RL
1st Mate

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USA
76 Posts

Response Posted - 06/24/2005 : 10:52:25

I've been looking for years for a full model of our boats, regardless of keel type. I did find a craftsman/artist who will make a one and only but the price is totally out of the question. I have some old cars and I can get models of them to put in my office, I'd just like to do the same with my boat. I cant find a model building company anywhere that produces a line of sail boat models. I even emailed a couple of companies suggesting they add pleasure boats to their line of models. Never got a reply
If anyone finds one please post here.
Thanks
RL

Edited by - on

Auburn80
1st Mate

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60 Posts

Response Posted - 06/24/2005 : 11:38:46

Hmmmm . . . I wonder if there is a business opportunity here. Having a relatively simple model of ones boat would be neat. I'll bet there would be a demand for C22,25,250,27,28 & 30; not to mention Hunters, Com-Pacs, Cals, McGregors, etc, etc, etc. I think the price would have to be in the $25 to $75 range, depending on quality.

Edited by - Auburn80 on 06/24/2005 11:40:57

ronrryan
Admiral

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USA
561 Posts

Response Posted - 06/24/2005 : 14:40:53

I own a few old car models, just for nostalgia's sake. I believe most of those are die-cast out of potmetal in China, probably by people making 3 cents an hour, which is why they are so cheap. I doubt there is enough of a market for full-body boat models, but then I have been so wrong so often it could be true. Fair winds, ron srsk Orion SW FL

Edited by - on

Auburn80
1st Mate

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60 Posts

Response Posted - 06/24/2005 : 15:50:10

Heck, I'd be happy with a white plastic model like the type from Revell. That way, one could customize the hull colors, sail plan, etc. based on your own scheme.

Edited by - on

Leon Sisson
Master Marine Consultant

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USA
1893 Posts

Response Posted - 06/24/2005 : 16:01:09

<center>Thoughts on scale models of existing boats.</center>

It's my understanding that traditionally, carving a half model was an important early step in the hull design process. It helped the designer to visualize how the underbody would interact with passing water. (And it helped the financial underwriter visualize what he was buying into.

) Once the carved half model seemed fair and pleasing to the designer's and customer's eyes, it's dimensions were scaled and transfered to a table of offsets. (Long boring details omitted here.) The hull's exterior lines were then lofted from the offsets, faired with battens, and copied to building forms, ribs, frames, stem, keel, and whatever other structural elements would determine the shape of the hull.

The whole skill and labor intensive process summarized above is now performed with a CAD-CAM system for most large volume, or otherwise well funded, builders.

-- SO --

My point (and I am getting to one

) is that a traditional wooden ship's model should very accurately represent the shape of the hull.
<blockquote id="quote">quote:<hr height="1" noshade id="quote">I wonder if there is a business opportunity here.<hr height="1" noshade id="quote"></blockquote id="quote">
I would suggest that the way to produce accurate models of existing hulls is to reverse that process. Generate a table of offsets from one side of a boat on stands or a trailer. Enter those points into a CAD drawing, connect the dots, fair the lines. Extrapolate the missing interval points to the desired resolution, and digitally generate the surfaces from the resulting wire-frame. (Somewhere along about here the mirror image data for the other half of the hull gets generated.) Convert that to a (scaled down) CAM file to drive a CNC 3-axis mill cutting wood, wax, or whatever. Sand that fair, and use it as a master to produce a casting mold from which to semi mass produce models. (At least until the lawyers hired by current owners of the original hull design catch up with you!

)

So, who wants to take the offsets, who's going to do the CAD, and who has access to a 3-axis CNC mill? (And who wants to be on the legal defense team?)

-- Leon Sisson {...who understands just enough about these matters to avoid any personal involvement!}

Edited by - on

Auburn80
1st Mate

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60 Posts

Response Posted - 06/24/2005 : 23:02:50

I was thinking a little more low-tech. I wonder what modern manufactureres do for the car/plane/boat models they make now. Surely the process is not that elaborate; I don't think thay have the vol. for that kind of investment. Do you think they get permission to use the likeness and name and do a reasonable facsmile . . .not a true scale model?

Edited by - on

britinusa
Web Editor

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USA
5404 Posts

Response Posted - 06/25/2005 : 00:05:36

lay the half model against a mirror

Edited by - on

Leon Sisson
Master Marine Consultant

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USA
1893 Posts

Response Posted - 06/26/2005 : 10:54:13

<blockquote id="quote">quote:<hr height="1" noshade id="quote">I was thinking a little more low-tech.<hr height="1" noshade id="quote"></blockquote id="quote">Ok, how about this. Contact [url="http://todddunnmicroyachts.com/"]Todd Dunn[/url], and see what he'd charge to carve us a few C-25s.

By the way, I hope I didn't give the impression I was trying to make this as high tech and difficult as possible with my previous tongue-in-cheek suggestion. The part about taking a table of offsets, lofting, and fairing is almost as old as building ships from drawn plans. It involves nothing more modern than writing instruments and traditional carpenters measuring tools. Most any modern PC can run usable CAD software, which has almost completely replaced the T-square, angled drafting table and draftsmans stool (and eraser

). I would expect all but the smallest mom&pop machine shops to have at least one 3-axis CNC mill these days. (To be compatible with all those customers with CAD/CAM systems!

)

-- Leon Sisson

Edited by - on

Auburn80
1st Mate

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60 Posts

Response Posted - 06/26/2005 : 13:10:04

Sweet Model! I knew you were joshing a bit and I'm aware of the ease with with one can use today's CAD applications. That CS 36 looks very nice.

Edited by - on

mashedcat
Navigator

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USA
194 Posts

Response Posted - 06/28/2005 : 22:57:58

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by John G-
 
Although I would be happy with a “half hull” I cannot find one for a Fin Keel, however when Frank posted the regatta plaque it is a Fin Keel half hull.
Could some one tell me where that half hull came from?
Thanx
 

<hr height="1" noshade id="quote"></blockquote id="quote">

Edited by - on

mashedcat
Navigator

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USA
194 Posts

Response Posted - 06/28/2005 : 22:58:33

i saw a half hull in cd catalog<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by John G-
 
Although I would be happy with a “half hull” I cannot find one for a Fin Keel, however when Frank posted the regatta plaque it is a Fin Keel half hull.
Could some one tell me where that half hull came from?
Thanx
 

<hr height="1" noshade id="quote"></blockquote id="quote">

Edited by - on

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