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Old Jan 21, 2012, 08:33 AM
Peppern75
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Norway, Buskerud, R°yken
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Clyde Puffer

For many years I've been thinking about building a scale boat. One day I came over a drawing and some pictures of a Clyde Puffer.
Then I've started drawing on my PC. The results are shown here.
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Old Jan 21, 2012, 08:50 AM
Peppern75
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Norway, Buskerud, R°yken
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Some parts must be cut out of plywood, 12 mm for the keel and 4 mm for the other parts
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Old Jan 21, 2012, 09:34 AM
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Bozeman, Montana, United States
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Puffers are neat. Nice use of the computer to generate your frames. Will yours be steam powered? I imagine you could fit a small oscillator motor in the hull, but I'm not sure about the fitting of a boiler in the scale position, unless it was a small one. Regner has a small boiler+engine combo unit.
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Old Jan 21, 2012, 11:41 AM
Peppern75
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The scale of my Puffer will be 1:12, the hull will be 170 cm long and 46 cm wide. This will mean a weight about 50-60 kg. I don't know if there is a steam engine that is big enough to use in this model. If it exist, it is wery expensive. I am going to use a geared electric motor and a couple of small car batteries (40-50 Ah). The propeller is a 3-blade 130 mm.
Some gluing has been done .....
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Old Jan 21, 2012, 12:55 PM
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I certainly misjudged the size of your boat, hoho :-). You'd have no problem with fitting steam engines and boilers*smiles*. Steam motors would be plenty powerful enough. My friend has a 4 foot steam tramp that runs on the cheapest oscillator available in the US, namely the Midwest Heritage package (about $120 boiler + motor). His hull is narrower than yours, so would move more easily thru the water than your Puffer.

But there are other motors, eg. the Graham 2 cylinder TVR1A, which would move your Puffer fine (about $250, fully machined, just assemble with handtools). The boiler is the most expensive part, unfortunately. Maccsteam 3 1/2" would do the job, but costs about $550 plus shipping.

The Midwest Heritage is the cheapest way to get into the steam side of the hobby (short of scratch building motor and boiler). But, your Puffer hull type and size are probably more than the oscillator could handle. Maybe build a steam launch for your Puffer? *smiles*
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXSM83

http://www.grahamind.com/tvr1a.html
http://www.maccsteam.com/Horizontal_...e_boilers.html

Some Maccsteam boiler and Graham engine tests I ran:
http://www.rcgroups.com/forums/showthread.php?t=1216529
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Last edited by Brooks; Jan 21, 2012 at 01:02 PM.
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Old Jan 21, 2012, 01:14 PM
Peppern75
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This was interesting. Maybe some more expensive than an elektric motor but something to think about.
In Norway it is saturday evening now, and some more parts have been cut out from plywood, then taped together to see how it fits.
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Old Jan 21, 2012, 01:25 PM
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Peppern, good choice for a model boat. Puffers have lots of gritty character---.
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Old Jan 21, 2012, 01:29 PM
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Very nice start !
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Old Jan 21, 2012, 01:38 PM
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Tim, have you noticed how neat and tidy these European modelers are---?
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Old Jan 26, 2012, 02:33 PM
Peppern75
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Testing some paint, and drawing with a marker to imitate planks, before using colored stain.
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Old Jan 26, 2012, 03:20 PM
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Holy crap. This is a big model. What dimensions?
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Old Jan 26, 2012, 03:49 PM
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It's the perfect size .

Mark
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Old Jan 26, 2012, 11:19 PM
Peppern75
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Quote:
Originally Posted by the goon View Post
It's the perfect size
Yes, that's right, It's the perfect size. The scale is 1:12 and it will be 170 cm long, 46 cm wide and total height 136 cm. The weight must be approx. 60 kg.
This will be a low cost boat, because I mainly build model airplanes, but I will try to make some details.
You can look at my model airplanes here: http://smartweb.no/pernil/
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Old Jan 27, 2012, 11:23 AM
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Quote:
Originally Posted by CurtisP40 View Post
Holy crap. This is a big model. What dimensions?
Big---, about 5'-8" long---.

Peppern must be a pretty strong fellow if he's going to heft that model to the water---.
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Old Jan 27, 2012, 11:29 AM
can you land on that ?
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Big enough to sit IN , ifn he`s of slight build !
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