Fuel Consumption Charts?

Question

Does anybody know where I can find Fuel consumption charts, in particular for Volvo 4.3L GXI DuoProp.

Obvioulsy the figures will vary from boat to boat but there must be some benchmark etc etc. Mines actually a twin engine system.

My own rough estimates are that I'm consuming 50L / Hr at approx 22knts

The boats 32ft long and weighs about 5.5 metric tons

Answer 1

You might try the boat makers web page. My boat maker has tests from all models including perfomance curves and fuel consumption charts. maybe Volvo has something also.

Answer 2

national marine manufacturerers ratings at full throttle are: four stroke engine uses four tenths pounds per hour,per horsepower. two stroke, six to eight tenths pounds. at cruising speed uses about 80% of top speed. all of this can vary due to wind and sea conditions.