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Worksheet 54 · Skill 6

Course to steer

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  1. You are at 292°T, 2.1 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.4 kn. The current sets 132°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  

  2. You are at 290°T, 2.5 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 9.0 kn. The current sets 320°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  

  3. You are at 354°T, 1.7 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.6 kn. The current sets 260°T at 1.4 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  

  4. You are at 066°T, 3.0 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.4 kn. The current sets 219°T at 0.5 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  

  5. You are at 336°T, 2.7 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 8.0 kn. The current sets 214°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  

  6. You are at 096°T, 1.8 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 9.1 kn. The current sets 347°T at 1.1 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  

  7. You are at 102°T, 1.8 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.9 kn. The current sets 127°T at 1.6 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 090°T, 2.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.9 kn. The current sets 280°T at 2.2 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  

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: 188 °T
Speed over the ground: 6.7 kn
Time to the mark: 21 min
No. 54001 (worked solution)
2Course to steer: 098 °T
Speed over the ground: 7.4 kn
Time to the mark: 52 min
No. 54002 (worked solution)
3Course to steer: 204 °T
Speed over the ground: 6.5 kn
Time to the mark: 47 min
No. 54003 (worked solution)
4Course to steer: 352 °T
Speed over the ground: 6.1 kn
Time to the mark: 26 min
No. 54004 (worked solution)
5Course to steer: 281 °T
Speed over the ground: 9.0 kn
Time to the mark: 38 min
No. 54005 (worked solution)
6Course to steer: 037 °T
Speed over the ground: 9.8 kn
Time to the mark: 22 min
No. 54006 (worked solution)
7Course to steer: 355 °T
Speed over the ground: 5.9 kn
Time to the mark: 42 min
No. 54007 (worked solution)
8Course to steer: 014 °T
Speed over the ground: 8.0 kn
Time to the mark: 28 min
No. 54008 (worked solution)