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- Q127 - Navigation Problems: Oceans
425. While steaming at 14 knots, your vessel burns 276 bbls of fuel per day. What will be the rate of fuel consumption if you decrease speed to 11.7 knots?
Fuel consumption for a displacement vessel is proportional to the cube of the speed. Reducing speed from 14 to 11.7 knots results in a fuel consumption of 161 bbls, calculated as 276 x (11.7/14)3.
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