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Old 08-13-2017, 09:58 PM   #1
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City: Alameda
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Vessel Name: Azure Skies
Vessel Model: Californian 3900
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3900 optimal speed

Hello all,

We have just purchased a 2001 Navigator/Californian 3900. Finding information on this particular vessel is not easy, so I am hoping others out there might have some useful information.

I am curious if any knows the optimal cruising speed and the corresponding fuel usage for this vessel. She has twin Volvo TAMD 63s (turbo charged). I have done the calculations for generic diesel fuel usage, but I am hoping someone has more precise data.

Thanks in advance.
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Old 08-13-2017, 10:20 PM   #2
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I would see if you can lookup and find the prop curves for those engines. It will generally tell you the gph at various rpms. Then start a table of speed/rpm. Where those two tables intersect will be your gph/speed and give you an idea of what will be the most efficient.

However, if you really want to know the most fuel efficient speed it will likely be about a knot below your calculated hull speed. That will also likely be painfully slow for you.
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Old 08-13-2017, 11:09 PM   #3
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City: California Delta and SF Bay
Country: Sacramento, CA, USA (boat in Vallejo)
Vessel Name: FlyWright
Vessel Model: Marshall Californian 34 LRC
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One of my favorite Navigator designs! I've always admired the layout.

Wish I could help, but I have no first hand info for you. Too bad they've gone out of business. They made some great boats.

There's a charter business in the PNW that charters one. Google should find it. I bet they'd have some data for you.
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Old 08-13-2017, 11:15 PM   #4
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City: California Delta and SF Bay
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Just found this...

Check out the Engine and Electrical specs for some info.

Harmony
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Old 08-14-2017, 09:27 PM   #5
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City: Alameda
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Vessel Name: Azure Skies
Vessel Model: Californian 3900
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Thank you dhays and FlyWright. The link to Harmony is great. I've looked at charter information in PNW, but they didn't have the speed information your link provided.

As for the layout, I didn't care for the up-galley at first, but I did like the center table with the helm right in the action. Overall, lay out has really grown on me. But most importantly, the commodore loves the layout.
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Old 09-22-2017, 09:49 PM   #6
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City: Alameda
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Vessel Name: Azure Skies
Vessel Model: Californian 3900
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If anyone needs work done in the Seattle area, I'd like to recommend Mike Pickel (MPMarine, but he's changing the name to something like University Marine Boat Yard). He did great work on our new-to-us California 3900. He stayed within his quoted budget on the original work and was very conscientious about making sure the vessel was in good order. I wish all of our other boat yard experiences (other boats) had been half as good as our experiences with Mike.
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