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Old 12-15-2013, 11:03 PM   #81
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The shirtback.
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Old 12-16-2013, 01:33 AM   #82
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Looking good!
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Old 12-16-2013, 02:13 AM   #83
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BruceK said...
Not surprised you were. Everything costs more here. I`ve brought in parts from US which, with shipping, are far less than retail here. Mostly due to our wage structure, and profit margins in the supply chain. A friend imported some Ronstan parts, actually made here, cheaper than local retail.

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Ahhh, thanks for enlightening me on that.
Yeah, don't come to the land of the much-vaunted 'fair go' if you really want a fair go....
And Oliver...that boat of your looks so damned nice..... I want one...WAAAAA
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Old 12-16-2013, 06:41 AM   #84
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Looking good!
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Old 12-16-2013, 06:44 AM   #85
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BruceK said... Not surprised you were. Everything costs more here. I`ve brought in parts from US which, with shipping, are far less than retail here. Mostly due to our wage structure, and profit margins in the supply chain. A friend imported some Ronstan parts, actually made here, cheaper than local retail. Yeah, don't come to the land of the much-vaunted 'fair go' if you really want a fair go.... And Oliver...that boat of your looks so damned nice..... I want one...WAAAAA
Thanks! And maybe one day we'll make it down there, if we do I'll stop in and say hi.
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Old 12-16-2013, 06:55 AM   #86
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I'm not sure why different selections were made for the different coolers.
Probably a matter of a local fabricator who makes a product that has bling factor for Nordhavn. They don't cost very much but as seen here, there is a great wow factor for some reason. My guess is it's a marketing thing between friends of friends in the supply chain.

Ti makes great heat exchanger material but as a keel cooler it doesn't add much benefit and actually creates a greater risk of galvanic corrosion of other underwater materials. I don't think any of the other manufacturers of keel coolers offer a Ti version and they supply some pretty exotic military applications. Can anyone show another keel cooler application with titanium tubing other than on a Nordy or a one off from the same welding shop?
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Old 12-16-2013, 07:01 AM   #87
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Keel Cooler

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Probably a matter of a local fabricator who makes a product that has bling factor for Nordhavn. They don't cost very much but as seen here, there is a great wow factor for some reason. My guess is it's a marketing thing between friends of friends in the supply chain.

Ti makes great heat exchanger material but as a keel cooler it doesn't add much benefit and actually creates a greater risk of galvanic corrosion of other underwater materials. I don't think any of the other manufacturers of keel coolers offer a Ti version and they supply some pretty exotic military applications. Can anyone show another keel cooler application with titanium tubing other than on a Nordy or a one off from the same welding shop?
I have Pdf version of the manual for the keel cooler, if you want a copy.
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Old 12-16-2013, 07:46 AM   #88
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Probably a matter of a local fabricator who makes a product that has bling factor for Nordhavn. They don't cost very much but as seen here, there is a great wow factor for some reason. My guess is it's a marketing thing between friends of friends in the supply chain.

Ti makes great heat exchanger material but as a keel cooler it doesn't add much benefit and actually creates a greater risk of galvanic corrosion of other underwater materials. I don't think any of the other manufacturers of keel coolers offer a Ti version and they supply some pretty exotic military applications. Can anyone show another keel cooler application with titanium tubing other than on a Nordy or a one off from the same welding shop?
It's possible, but I doubt it. If I were going to bling someting out, I'd bling something visible, not something underwater that gets seen once every few years in a boat yard.

I'll see if I can find out, but I'd wager $1 that it's due to the higher pressure of the hydraulics. The engine's cooling system runs at about 15 psi, where the hydraulics is 25psi+ depending on the backpressure through the filter and other return lines, and potentially more.
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Old 12-16-2013, 08:34 AM   #89
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It's possible, but I doubt it. If I were going to bling someting out, I'd bling something visible, not something underwater that gets seen once every few years in a boat yard. I'll see if I can find out, but I'd wager $1 that it's due to the higher pressure of the hydraulics. The engine's cooling system runs at about 15 psi, where the hydraulics is 25psi+ depending on the backpressure through the filter and other return lines, and potentially more.
They were used for some of the ABT stabilized boats. This is probably the guy who was making them.
http://www.primefabrication.com/prod...l_coolers.html
A few boats had some weld issues at one time, not sure about the current builds.

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Old 12-16-2013, 09:13 AM   #90
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A lot of plate coolers use Ti as the plate material so don't see why not use it for keel coolers but certainly does appear to be a bit of over kill.
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Old 12-16-2013, 10:03 AM   #91
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Our main engine cooler is a Fenstrum ahttp://fernstrum.com/products/gridcooler-keel-cooler/
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Old 12-16-2013, 10:32 AM   #92
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A lot of plate coolers use Ti as the plate material so don't see why not use it for keel coolers but certainly does appear to be a bit of over kill.
Ti has several advantages in plate coolers, lighter weight, thinner plates, and higher flow velocities. The risk of corrosion, erosion, and greater biofouling resistance is a plus compared to CuNi but the thermal conductivity is less than CuNi but better than SS. It is a good material for plate coolers but only buys bragging rights for a keel cooler since good old fashioned copper pipe would make a far better keel cooler for way less money.

I don't think the non-Fernstrum cooler in the photograph is Ti in any event. The headers don't look like the Ti headers which appear to be designed to permit easy weld purging and a bit of "streamlining."
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Old 12-19-2013, 12:52 PM   #93
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We just checked on boat they got most of the stuff done, the last thing there doing is pointing the window frames nd we'll be set. We'll be leaving early Saturday and we'll be sleeping on the boat Friday night.
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Old 12-19-2013, 03:34 PM   #94
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Also shots of the new canvas. All together it was $6500.00 that included dink cushions all deck, hatch, and window covers. Oh and the flybridge.
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Old 12-19-2013, 03:41 PM   #95
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Really coming along, maybe stated early and I missed it, any intended destinations planned once all up to snuff?
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Old 12-19-2013, 03:43 PM   #96
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Really coming along, maybe stated early and I missed it, any intended destinations planned once all up to snuff?
We plan to explore all of the Bahamas, and then if my dreams come true French Polynesia.
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Old 12-19-2013, 04:05 PM   #97
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Excellent, all the best in your travels!
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Old 12-19-2013, 04:52 PM   #98
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Excellent, all the best in your travels!
Thanks you too!
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Old 12-20-2013, 04:04 PM   #99
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On our way to Sailfish Marina, then tomorrow early were going head home to Fort Lauderdale. Saw Bucky, and O.C divers boat, but my iPad was downstairs.
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Old 12-20-2013, 08:15 PM   #100
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Oliver is great -- and fits the name too. She's beautiful.

One question/concern: Can you lower the ladder on the swim platform from the water? A while back a friend went into the drink so I ask...

That's a great looking boat though for certain.
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