Large Marinette fuel consumption

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Maestro
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Joined: Sat Jul 12, 2014 7:27 pm

Large Marinette fuel consumption

Post by Maestro »

Those with BigMs in the 37-41 ft range - what kind of fuel consumption is typical for these? Going slow vs cruising? I realize there are many factors that affect this but just curious for your estimates.
Maestro
1986 32' Sedan
Chrysler 360s
1.5:1 Gears, 16x16 props

1970 28' Express
Single Chrysler 440
1:1 Gear, 14x12 prop

Green Bay, WI
barkleydave
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Joined: Sat Jul 12, 2014 6:18 am
Location: Kentucky

Re: Large Marinette fuel consumption

Post by barkleydave »

General Average: .75-1.25 mpg

On plane you can avg. around 14 gal per hr +

safe harbors,

dave
1987 Marinette 29 FB Sedan
Retired Boat Accident UL and USCG trained investigator
Retired USCG Captain
Roger2
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Re: Large Marinette fuel consumption

Post by Roger2 »

On my BigM 37 with diesels, I get about 4.6 MPG on one engine at about 8 knots,(9.2mph) or about 1.43 MPG at 25 knots (28MPH). We generally only run one at about 1500 RPM.
One engine 1500-1600 @ 2 gal/hr and 8 knots or 2 engines @ 2600 at about 20 gal/hr and 25knots.
I have more time than $, so slow we go! :mrgreen:

Roger
"Sea Jay" a 37' Double cabin with twin factory Volvo diesels, 230 HP each. Twin Disk 1.54 Trans turning DynaQuad 19X21 props.
Roger Brown
Petersburg, IL
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