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- Master & Mate (Oceans or Near Coastal (Limited Tonnage: Less Than 200 GRT)) »
- Q159 - Navigation Problems: Oceans
221. You have steamed 520 miles at 22 knots and burning 319 barrels of fuel per day. You must decrease your consumption to 137 barrels per day with 410 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?
Fuel consumption is proportional to the cube of speed. Calculate the new speed by applying this relationship: new speed = original speed * (new fuel consumption / original fuel consumption)(1/3). This yields a speed of approximately 16.2 knots.
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