How Much Fuel Does A 50 Ft Boat Used. Used Yachts For Sale From 41 To 50 Feet. On our trip we burned 35 gallons of fuel at an average speed of 22 knots and it took just over 2 hours to run 45 nautical miles.
Other shapes such as deep-v hulls require more power. Formula To Estimate Maximum Engine Fuel Consumption Gallon Per Hour GPH specific fuel consumption x HPFuel Specific Weight Constants Gas Diesel SFC 50 lb. At 22 knots its 400 litres an hour.
At full throttle and averaged across makes and models those engines burn about one gallon of fuel per hour for every 10 horsepower hp.
As a reminder we tested all of the outboards on Alumacraft Classic 165 CS with a hull weight of 865 pounds per Alumacraft two adult males including the author and the respective outboard factory tech rep test gear and 20 gallons of gasoline at the beginning of each test. Other shapes such as deep-v hulls require more power. Similar to a car traveling at higher speeds means an increase in aerodynamic drag which directly impacts fuel use. The pros call it brake-specific fuel consumption.
