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Old 05-15-2021, 05:19 PM   #1
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Vessel Name: Mayrose
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Mainship 34 Pilot Fuel burn rate

I ran a 34 Mainship Pilot with a 370 Yanmar for 10 + hours mostly at 2900 RPMs. About 11 Gallons/hr.
Speed ranged from 15.5 knots with a 2-3' swells at 10 seconds to 16.5 calm no current and wind.
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Old 05-15-2021, 06:50 PM   #2
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Here is a chart I prepared for that vessel by noting rpms for various speeds and then picking up fuel consumption from the Yanmar prop curve. Your data confirms what I found, that the Yanmar prop fuel consumption curve is a little conservative.

David
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File Type: pdf Pilot 34 Fuel Consumption.pdf (95.7 KB, 47 views)
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Old 05-16-2021, 06:02 AM   #3
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David,
I actually ran 10.5 hours, left Delaware City Marina to Delaware River ( 10 minutes) cruised to Cape May thru Cape May ( 30 min) up NJ coast to Barnegat inlet (30min) the cruised up the bay. Docking, undocking, Docking, undocking, going to fuel dock 20 min.
9 hours at 2900 ( 9 x 12=108 gals) and 1.5 at 1500 ( 1.5 x 3=4.5 gals) would balance my 112 gals at the fuel dock.
145 nm/112=1.29 nm/gal total trip

I would like to revise my original statement.
Thanks for the input

Greg
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Old 06-06-2021, 05:47 AM   #4
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see attached for MS Pilot fuel flow data
MS Pilot Fuel chart.pdf
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Old 06-07-2021, 12:18 PM   #5
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Thanks,
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