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Worksheet 118 · Skill 6

Course to steer

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  1. You are at 045°T, 1.9 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 9.0 kn. The current sets 358°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  

  2. You are at 264°T, 1.8 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 9.4 kn. The current sets 305°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 022°T, 2.1 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 9.7 kn. The current sets 352°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  

  4. You are at 027°T, 1.2 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 11.0 kn. The current sets 153°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  

  5. You are at 053°T, 3.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.8 kn. The current sets 353°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  

  6. You are at 032°T, 2.5 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 6.7 kn. The current sets 192°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 064°T, 2.8 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 6.5 kn. The current sets 249°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  

  8. You are at 028°T, 3.5 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 8.0 kn. The current sets 018°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  

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: 278 °T
Speed over the ground: 9.7 kn
Time to the mark: 42 min
No. 118001 (worked solution)
2Course to steer: 200 °T
Speed over the ground: 9.2 kn
Time to the mark: 17 min
No. 118002 (worked solution)
3Course to steer: 268 °T
Speed over the ground: 10.1 kn
Time to the mark: 42 min
No. 118003 (worked solution)
4Course to steer: 117 °T
Speed over the ground: 13.0 kn
Time to the mark: 21 min
No. 118004 (worked solution)
5Course to steer: 139 °T
Speed over the ground: 6.8 kn
Time to the mark: 34 min
No. 118005 (worked solution)
6Course to steer: 034 °T
Speed over the ground: 5.4 kn
Time to the mark: 77 min
No. 118006 (worked solution)
7Course to steer: 047 °T
Speed over the ground: 4.4 kn
Time to the mark: 28 min
No. 118007 (worked solution)
8Course to steer: 112 °T
Speed over the ground: 8.2 kn
Time to the mark: 15 min
No. 118008 (worked solution)