USCG Exam PracticeCourse to steer to compensate for current
A vessel's DR position places her at a certain point after one hour of steaming. The current has been setting 270°T at 3 knots during that hour. Where is the EP relative to the DR position?
- A. 3 miles to the east of the DR position
- ✓ 3 miles to the west of the DR positionCorrect
- C. 3 miles to the north of the DR position
- D. 3 miles to the south of the DR position
Why B is correct
Set 270°T means the current is flowing toward 270°T, which is due west. Drift is 3 knots; over one hour that is 3 miles. The EP is found by laying off 3 miles in the direction of set (270°T) from the DR position, placing it 3 miles to the west.