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- Q159 - Navigation Problems: Oceans
251. While steaming at 17.0 knots, your vessel consumes 382 barrels of fuel oil per day. In order to reduce consumption to 223 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?
Fuel consumption for displacement vessels is proportional to the cube of speed; reducing fuel consumption from 382 to 223 barrels per day requires a speed reduction to approximately 14.2 knots.
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