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Worksheet 62 · Skill 6

Course to steer

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  1. You are at 042°T, 3.3 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 9.4 kn. The current sets 259°T at 1.2 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 079°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.1 kn. The current sets 206°T at 1.2 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 077°T, 3.0 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.6 kn. The current sets 219°T at 1.2 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 300°T, 3.0 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.6 kn. The current sets 038°T at 1.8 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  

  5. You are at 097°T, 2.7 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 9.3 kn. The current sets 013°T at 2.5 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  

  6. You are at 202°T, 1.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.3 kn. The current sets 123°T at 2.5 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  

  7. You are at 336°T, 2.8 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 12.0 kn. The current sets 324°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  

  8. You are at 313°T, 2.9 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 9.3 kn. The current sets 150°T at 2.4 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: 118 °T
Speed over the ground: 8.5 kn
Time to the mark: 15 min
No. 62001 (worked solution)
2Course to steer: 290 °T
Speed over the ground: 5.4 kn
Time to the mark: 57 min
No. 62002 (worked solution)
3Course to steer: 136 °T
Speed over the ground: 6.9 kn
Time to the mark: 22 min
No. 62003 (worked solution)
4Course to steer: 192 °T
Speed over the ground: 7.0 kn
Time to the mark: 34 min
No. 62004 (worked solution)
5Course to steer: 348 °T
Speed over the ground: 11.6 kn
Time to the mark: 21 min
No. 62005 (worked solution)
6Course to steer: 253 °T
Speed over the ground: 8.9 kn
Time to the mark: 24 min
No. 62006 (worked solution)
7Course to steer: 263 °T
Speed over the ground: 12.7 kn
Time to the mark: 27 min
No. 62007 (worked solution)
8Course to steer: 084 °T
Speed over the ground: 10.5 kn
Time to the mark: 35 min
No. 62008 (worked solution)