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Old Jul 28, 2009, 11:13 PM
LONGBIKE is offline
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If you cant find it Build it!
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Very nice clean work there toes!
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Old Jul 29, 2009, 01:59 AM
toesup is offline
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USA'd ex Brit
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Quote:
Originally Posted by Kmot
But I am betting the usual 'suck and discharge' cooling would actually keep the components cooler than this enclosed system.
I would of thought the cooler's having a free flow of water around them under the boat would be more efficient than the 'suck and discharge' (can you say that on a family forum? ) system.

I've stuck all the components together tonight and started to clean them up..

I'm going to need to make up some guards to keep all those logs (twig's ) from damaging the pipework.
Old Jul 29, 2009, 02:06 AM
col_426 is online now
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from downunder Downunder
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So, Ralph, do you have pictures of these on the real boat so that we can compare your marvelous workmanship?
Old Jul 29, 2009, 02:21 AM
Trakka is offline
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Last edited by Trakka; May 28, 2011 at 09:16 PM.
Old Jul 29, 2009, 02:23 AM
toesup is offline
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Quote:
Originally Posted by col_426
do you have pictures of these on the real boat so that we can compare your marvelous workmanship?
These are under Crowley Scout
Beyond the Voith drives in the center of the pic
Old Jul 29, 2009, 05:37 AM
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I have seen several pics of working craft out of the water and a lot of them seem to use a simple metal combing a piece of metal slightly wider than the cooler is thick to protect them yet still be able to get some interaction between the cooler and the surrounding water.
Foo
Old Jul 29, 2009, 01:03 PM
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**NOT GUILTY**
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Nice job Toes!
Old Jul 30, 2009, 01:17 AM
Tugboat Andy is offline
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Here's a picture of an old school keel cooler.
Old Jul 31, 2009, 05:14 PM
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Whew wayyyy back in RC Boat Modeler IIR someone used pipes recessed into the sides of the hull to cool a tug internally in the closed portion of the system it had a windshield washer pump that circulated the fluids (ok for a family website?) and for cooling a mixture of alcohol and water was used in the closed portion of the system. I donít know if it is helpful but a neat project and I wish I had the fabrication skills you and Umi possess.
Old Jul 31, 2009, 05:35 PM
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Using some brass angle and some copper mesh, i have made up the guards for the pipework.
The soldering isn't as tidy as i would of liked, but its going to be under water most of the time...

Ok.. Question...

What color paint gives the best transfer of cool / heat?.. or should they be left 'Au naturel'?.
Old Jul 31, 2009, 05:39 PM
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If it is all nonferrous metals leave it "au naturel"

Paint isolates...
Old Jul 31, 2009, 05:45 PM
Ghost 2501 is offline
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no wings any more, just dust!
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Quote:
Originally Posted by toesup
Using some brass angle and some copper mesh, i have made up the guards for the pipework.
The soldering isn't as tidy as i would of liked, but its going to be under water most of the time...

Ok.. Question...

What color paint gives the best transfer of cool / heat?.. or should they be left 'Au naturel'?.
its below the water, no one's gonna know. i'd paint them the same color as the antifouling, just as per real ship
Old Jul 31, 2009, 05:48 PM
CornelP is offline
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A good heat transfer paint (tested on other applications) is a "Zinc Aluminum" primer. Silver color, great covering, good heat transfer.
Old Jul 31, 2009, 05:50 PM
Shaun Hendricks is offline
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Black is heat absorbant, white/silver is a radiant. I'd go for metallic silver like a chrome. Besides, you can claim you have "Chrome Pipes"...


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