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Old May 05, 2010, 06:51 PM
Registered User
USA, GA, Alpharetta
Joined Apr 2009
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Looking for plans

Long time lurker.....

We sail model sailboats (EC12 class in the South East) and use a small tugboat for setting our weekly marks for racing. The tug is just on the small side for mark setting and almost worthless for "recovering" boats since it just has less overall mass than the boats we sail. I have been looking for a good hull plan that I can scratch build over station shadows, hoping for fiberglass over planked wood hull. Need 40+" and can be kind of wide. twin screws. Any plans for a superstructure are non important as I am going to make a far forward small wheel house and a large "utility deck" on the stern for automatic launching of bouys. If anyone has any shadows/line plans they can point me toward that would be even close I would appreciate it. You can PM me as well and I can give you direct email if you have anything to send directly.

Thanks in advance.... (and of course I will post build logs here once I start )

Eric
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Old May 05, 2010, 07:12 PM
Cheif Bottlewasher
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Canada, NS, Sydney Mines
Joined Sep 2005
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Thry this ..Cheap,simple,effective,multi-tasking

http://www.rcgroups.com/forums/showthread.php?t=522762


If all you need is marker setting and recovery..Lots of bang for the buck ..
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Old May 05, 2010, 07:16 PM
Dinosaursoupman
Joined Jul 2009
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Not a tug but a Buoy/Lighthouse tender, plans available for free online: http://memory.loc.gov/cgi-bin/ampage.../~ammem_RwgN::
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Old May 05, 2010, 07:40 PM
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Monterey Bay California
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Originally Posted by more coffee View Post
If all you need is marker setting and recovery..Lots of bang for the buck ..
Springer would have no problems working as a recovery boat for EC12s- the flat bow makes it an ideal boat for the job... there are ususally a couple of Springers on hand at our events for this purpose.

We have even been known to recover certain club members who went adrift in the middle of the lake in the club dingy because they accidently dropped the ores in the water!

great little boat, the Springer.
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Old May 06, 2010, 01:39 PM
r/c ships and workboats
bellingham, wa
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Originally Posted by dinosaursoupma View Post
Not a tug but a Buoy/Lighthouse tender, plans available for free online: http://memory.loc.gov/cgi-bin/ampage.../~ammem_RwgN::
nice find and an interesting vessel.
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Old May 07, 2010, 10:25 AM
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Thanks for the suggestions so far.

On a side note, I went digging some more on the USCGV route and found at least a few more very detailed drawings contained in a PDF.

US Coast Guard Bouy Tenders
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Old May 07, 2010, 12:06 PM
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Maybe design your own. Sketch one out. Think of a wide shoe box with a bow.
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Old May 07, 2010, 12:41 PM
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Maybe design your own. Sketch one out. Think of a wide shoe box with a bow.
That is exactly the idea.... What I do not know how to do with that type of design is calculate displacement and how deep the hull needs to be and so on. I will tool around and see what I can come up with. Thanks for the nudge
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Old May 07, 2010, 04:53 PM
Kurt Greiner
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USA, CA, Grass Valley
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Originally Posted by Geeks2you View Post
That is exactly the idea.... What I do not know how to do with that type of design is calculate displacement and how deep the hull needs to be and so on. I will tool around and see what I can come up with. Thanks for the nudge
For depth, just copy a tug or similar work boat, that will give you plenty of displacement for battery power and endurance. It is easier to add weight than remove it.

Kurt
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Old May 07, 2010, 06:14 PM
Cheif Bottlewasher
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Canada, NS, Sydney Mines
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Im no pro..

But ..

lets say that it takes 10lbs of water to run the unit to the water line ..hence she diplaces 10lbs..

Water .0361lb/cu inch

Say that ship above is 30"Lx9"W and drafts 4"..

generally that's a total of 1080cu in..

Now what i do ..is just take from that 60%..that makes up for the bow/stern taper ,hull curvature..and such
648cu/in
648x.0361= 23.39lbs
Ship completed with running gear and balast will weight approx 23lbs....Its a ball bark ..

She may come in lighter than that ..

Shelly..my tug is 36x12 draws 5.25"..
She comes in at 38lbs..and shes a 1/4" from the prescribed water line
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Last edited by more coffee; May 07, 2010 at 06:20 PM.
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Old May 07, 2010, 09:25 PM
Sea Dragon-Lover
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PDX, OR
Joined Dec 2002
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Originally Posted by Geeks2you View Post
Thanks for the suggestions so far.

On a side note, I went digging some more on the USCGV route and found at least a few more very detailed drawings contained in a PDF.

US Coast Guard Bouy Tenders
Great find,....
Three very nice sets of plans in that report.

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Old May 07, 2010, 10:22 PM
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Something like this would be really awsome!!
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Old May 07, 2010, 11:40 PM
Sea Dragon-Lover
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Something like this would be really awsome!!

Sea Fighter One... Gotcha covered on there...
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Old May 10, 2010, 10:03 AM
Registered User
USA, GA, Alpharetta
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So after some searching this weekend.... I found another way to search for it.

Anchor Handling/Supply Tugs

Found some plans for this vessel:
Granit AHTV. The plans are photocopies and I am having to do a little work in Photoshop/Illustrator to get them to look like anything that is close to printable. But I think I will start here... http://freeshipplans.com/free_model_tugboat_plans.html
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