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Worksheet 29 · Skill 6

Course to steer

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  1. You are at 029°T, 2.6 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 12.0 kn. The current sets 348°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 068°T, 3.2 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.2 kn. The current sets 015°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  

  3. You are at 298°T, 1.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.4 kn. The current sets 253°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  

  4. You are at 300°T, 1.5 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.8 kn. The current sets 212°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  

  5. You are at 298°T, 2.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.8 kn. The current sets 033°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  

  6. You are at 017°T, 1.2 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 7.0 kn. The current sets 175°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  

  7. You are at 051°T, 0.9 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.9 kn. The current sets 309°T at 0.7 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 031°T, 3.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.4 kn. The current sets 359°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  

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: 145 °T
Speed over the ground: 10.1 kn
Time to the mark: 28 min
No. 29001 (worked solution)
2Course to steer: 161 °T
Speed over the ground: 4.3 kn
Time to the mark: 40 min
No. 29002 (worked solution)
3Course to steer: 203 °T
Speed over the ground: 7.5 kn
Time to the mark: 36 min
No. 29003 (worked solution)
4Course to steer: 262 °T
Speed over the ground: 9.3 kn
Time to the mark: 23 min
No. 29004 (worked solution)
5Course to steer: 202 °T
Speed over the ground: 4.4 kn
Time to the mark: 61 min
No. 29005 (worked solution)
6Course to steer: 052 °T
Speed over the ground: 6.3 kn
Time to the mark: 36 min
No. 29006 (worked solution)
7Course to steer: 261 °T
Speed over the ground: 8.4 kn
Time to the mark: 40 min
No. 29007 (worked solution)
8Course to steer: 164 °T
Speed over the ground: 5.6 kn
Time to the mark: 57 min
No. 29008 (worked solution)