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Old 05-18-2016, 06:50 PM   #21
Dougcole's Avatar
City: Carrabelle, FL
Vessel Name: Morgan
Vessel Model: '05 Mainship 40T
Join Date: Jan 2008
Posts: 2,052
Hi Bigfoot.

Sorry for the delay getting back to you, I just noticed this post. At 2,900 RPM, about 15 knots, we burn 12 to 14 GPH. For cruise planning at fast speeds I figure on 1 MPG, just to give myself a cushion. At 1850 RPM, about 8 knots, we burn 4 to 4.5 gph.

On a recent three week trip we went from Stuart outside down almost to Ft. Lauderdale, then across to Bimini, then from Bimini to the Berrys, then messed around in the berrys for a while, then around Hole In the Wall into the Abacos, North throught the chain around to West End then back up to Stuart we burned exactly 10 GPH. That was a mix of hull speed and fast cruise. that also included a good bit of generator use.

Hope that helps.
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