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Worksheet 128 · Skill 6

Course to steer

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  1. You are at 082°T, 2.0 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.5 kn. The current sets 120°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  

  2. You are at 032°T, 2.5 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.9 kn. The current sets 114°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  

  3. You are at 008°T, 1.2 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 6.0 kn. The current sets 165°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  

  4. You are at 124°T, 1.9 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.1 kn. The current sets 153°T at 0.6 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  

  5. You are at 353°T, 1.6 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 11.2 kn. The current sets 013°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  

  6. You are at 065°T, 1.7 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 11.1 kn. The current sets 109°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  

  7. You are at 053°T, 2.8 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.6 kn. The current sets 308°T at 1.7 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 351°T, 1.2 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 6.0 kn. The current sets 196°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  

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: 147 °T
Speed over the ground: 9.9 kn
Time to the mark: 17 min
No. 128001 (worked solution)
2Course to steer: 150 °T
Speed over the ground: 7.9 kn
Time to the mark: 35 min
No. 128002 (worked solution)
3Course to steer: 302 °T
Speed over the ground: 5.6 kn
Time to the mark: 61 min
No. 128003 (worked solution)
4Course to steer: 111 °T
Speed over the ground: 7.6 kn
Time to the mark: 18 min
No. 128004 (worked solution)
5Course to steer: 086 °T
Speed over the ground: 11.6 kn
Time to the mark: 14 min
No. 128005 (worked solution)
6Course to steer: 147 °T
Speed over the ground: 12.7 kn
Time to the mark: 16 min
No. 128006 (worked solution)
7Course to steer: 142 °T
Speed over the ground: 6.0 kn
Time to the mark: 37 min
No. 128007 (worked solution)
8Course to steer: 305 °T
Speed over the ground: 5.7 kn
Time to the mark: 71 min
No. 128008 (worked solution)