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Old 29-01-2013, 12:41   #1
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Mono Transom Extension, Anyone?

Ok, so I've read a bunch about cat people lengthening the ends of their hulls, add 2'-4' a sugar scoop, steps, some storage, or buoyancy. It seem heavily debated weather or not it adds much to buoyancy, being such a small part underwater. But people do it anyway. So has anyone here ever done this to a mono? Rather than getting a slightly larger boat, it seems adding 3' would be a whole lot cheaper. My transom is large and flat, seems I could add a half round and become a canoe stern.
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Old 29-01-2013, 13:00   #2
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Re: Mono transom extension, Anyone?

I'd suggest consulting competent naval architects...
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Old 29-01-2013, 13:06   #3
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Re: Mono transom extension, Anyone?

Ah what a crap answer, you didnt mess about with LSD in 60's I'm guessing. Let's get some opinions from non-squares who do stuff rather than debate on the net about it. I can do this for $2500ish, any NA would want half that to even think about it.
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Old 29-01-2013, 13:21   #4
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Re: Mono transom extension, Anyone?

I seen a sugar scoop added to a sailboat. Would ave looked good if you couldn't see all the lines where they attached it, just couldn't get the colors to match.
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Old 29-01-2013, 13:30   #5
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Re: Mono transom extension, Anyone?

Quote:
Originally Posted by RabidRabbit View Post
Ah what a crap answer, you didnt mess about with LSD in 60's I'm guessing. Let's get some opinions from non-squares who do stuff rather than debate on the net about it. I can do this for $2500ish, any NA would want half that to even think about it.
Are we talking about the ODAY 32 ketch?

I don't see an issue if you're up for the project.
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Old 29-01-2013, 13:37   #6
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Re: Mono transom extension, Anyone?

Quote:
Originally Posted by RabidRabbit View Post
Ah what a crap answer, you didnt mess about with LSD in 60's I'm guessing. Let's get some opinions from non-squares who do stuff rather than debate on the net about it. I can do this for $2500ish, any NA would want half that to even think about it.
So why are you asking? Just go ahead and do it.
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Old 29-01-2013, 13:40   #7
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Re: Mono transom extension, Anyone?

Charlie Cobra just did an extension just recently. Looking for the thread now.
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Old 29-01-2013, 13:41   #8
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Quote:
Originally Posted by RabidRabbit
Ok, so I've read a bunch about cat people lengthening the ends of their hulls, add 2'-4' a sugar scoop, steps, some storage, or buoyancy. It seem heavily debated weather or not it adds much to buoyancy, being such a small part underwater. But people do it anyway. So has anyone here ever done this to a mono? Rather than getting a slightly larger boat, it seems adding 3' would be a whole lot cheaper. My transom is large and flat, seems I could add a half round and become a canoe stern.
Friends added ~18" to their older Jenneau, primarily to get a small swim platform but they claim without specifics, an increase in speed...
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Old 29-01-2013, 13:42   #9
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Friends added ~18" to their older Jenneau, primarily to get a small swim platform but they claim without specifics, an increase in speed...
(It was done by a pro!)
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Old 29-01-2013, 13:43   #10
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Re: Mono transom extension, Anyone?

Here ya go. Starts in thread #20 >>>> Old Warhorse in the Shop for a Makeover...
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Old 29-01-2013, 13:46   #11
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Re: Mono transom extension, Anyone?

Join boatdesign forums, and ask them....lots of highly competent and experienced NA's, builders and sailors there. Won't cost anything other than a little bit of time. It may sound like a piffling thing to you, but if you invest just a little thought you may find it is a bit more involved. Not saying it is impossible, or forbidden, just suggesting some due care be taken. Please post pictures of final result, successful or not.

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Old 29-01-2013, 14:09   #12
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Re: Mono transom extension, Anyone?

Its very doable, I've been thinking about it since I added a 1' my keel last summer. And what gives you turkeychickens the idea that I'm not a pro. I was interested in what others had done or thought about. The paint or seam finish is of absoultly no concern. "chrome won't get ya home" My boat is packed full I'm in need of more space.
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Old 29-01-2013, 14:14   #13
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Re: Mono transom extension, Anyone?

This guy thought it was a good idea-

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Building Galene- Transom Rebuild
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Old 29-01-2013, 14:23   #14
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Re: Mono transom extension, Anyone?

We added three foot to the back of our boat in the form of a swim platform - seen here right after the relaunch, and before we added the ladder.

We immediately gained a knot under sail, since by rounding off the transom we stopped all those swirling eddies you get behind a flat transom - in fact you can clearly see the original transom in the picture - it's just behind my butt!

Colour - not a problem, since the whole thing was due for a respray!

Extra space? Enough to sunbathe on, enough for a small hatch for the mask, fins, snorkel and scraper, and loads of space for the dogs to poop on when we can persuade them to stop doing it on the spinnaker sheets...
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Old 29-01-2013, 15:21   #15
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Re: Mono transom extension, Anyone?

Can be done. Seen some good executions and some pretty bad ones. Aesthetics may suffer, unless you are not aesthetically inclined.

Grab a drawing and extend the drawing first - see if you might like what you get.

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