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Worksheet 335 · Skill 6

Course to steer

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  1. You are at 154°T, 1.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.5 kn. The current sets 005°T at 2.1 kn.

    Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.

    Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).

    Course to steer: ________ °T   Speed over the ground: ________ kn   Time to the mark: ________ min  

  2. You are at 051°T, 2.8 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.2 kn. The current sets 090°T at 1.9 kn.

    Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.

    Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).

    Course to steer: ________ °T   Speed over the ground: ________ kn   Time to the mark: ________ min  

  3. You are at 229°T, 2.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.4 kn. The current sets 345°T at 1.9 kn.

    Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.

    Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).

    Course to steer: ________ °T   Speed over the ground: ________ kn   Time to the mark: ________ min  

  4. You are at 298°T, 4.2 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.9 kn. The current sets 295°T at 1.3 kn.

    Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.

    Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).

    Course to steer: ________ °T   Speed over the ground: ________ kn   Time to the mark: ________ min  

  5. You are at 093°T, 2.6 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.3 kn. The current sets 328°T at 0.8 kn.

    Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.

    Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).

    Course to steer: ________ °T   Speed over the ground: ________ kn   Time to the mark: ________ min  

  6. You are at 006°T, 3.4 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.5 kn. The current sets 157°T at 2.0 kn.

    Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.

    Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).

    Course to steer: ________ °T   Speed over the ground: ________ kn   Time to the mark: ________ min  

  7. You are at 350°T, 1.6 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 7.3 kn. The current sets 043°T at 2.3 kn.

    Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.

    Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).

    Course to steer: ________ °T   Speed over the ground: ________ kn   Time to the mark: ________ min  

  8. You are at 338°T, 1.1 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 7.5 kn. The current sets 229°T at 1.5 kn.

    Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.

    Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).

    Course to steer: ________ °T   Speed over the ground: ________ kn   Time to the mark: ________ min  

Practice Sheet No. 1

Practice Sheet No. 1 with the starting fixes of this worksheet 34 41 22 38 29 18 27 44 12 21 19 N VAR 7°W (invented) Heron Sound Heron Point Tern Island Westfield Kittle Gannet Rock Fl W 4s 52ft 14M TR TANK SPIRE STACK Dbn 1 2 3 HS 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Border scale: nautical miles (1 nm = 10 ticks) PRACTICE SHEET No. 1 · HERON SOUNDInvented for practice · NOT FOR NAVIGATION · Plotroom Start Start Start Start Start Start Start Start

Answer key

No.AnswersProblem
1Course to steer: 242 °T
Speed over the ground: 4.7 kn
Time to the mark: 30 min
No. 335001 (worked solution)
2Course to steer: 172 °T
Speed over the ground: 7.7 kn
Time to the mark: 32 min
No. 335002 (worked solution)
3Course to steer: 221 °T
Speed over the ground: 10.5 kn
Time to the mark: 13 min
No. 335003 (worked solution)
4Course to steer: 163 °T
Speed over the ground: 7.1 kn
Time to the mark: 38 min
No. 335004 (worked solution)
5Course to steer: 358 °T
Speed over the ground: 6.0 kn
Time to the mark: 40 min
No. 335005 (worked solution)
6Course to steer: 118 °T
Speed over the ground: 8.1 kn
Time to the mark: 48 min
No. 335006 (worked solution)
7Course to steer: 002 °T
Speed over the ground: 9.2 kn
Time to the mark: 35 min
No. 335007 (worked solution)
8Course to steer: 314 °T
Speed over the ground: 7.8 kn
Time to the mark: 41 min
No. 335008 (worked solution)