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- Master & Chief Mate (Oceans or Near Coastal (Unlimited Tonnage)) »
- Q108 - Navigation Problems: Near Coastal
36. You are underway on course 000°T at 9.5 knots. The current is 082°T at 1.1 knots. What is the speed being made good?
The speed made good is determined by vector addition of the ship's speed and the current's speed and direction. Calculating the northward and eastward components, then applying the Pythagorean theorem, yields a ground speed of approximately 9.8 knots.
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