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Worksheet 226 · Skill 6

Course to steer

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  1. You are at 134°T, 3.1 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.0 kn. The current sets 059°T at 1.0 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 278°T, 1.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.9 kn. The current sets 120°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  

  3. You are at 340°T, 1.4 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 10.5 kn. The current sets 234°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  

  4. You are at 285°T, 1.7 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.7 kn. The current sets 045°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  

  5. You are at 171°T, 1.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.4 kn. The current sets 221°T at 1.0 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 170°T, 1.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.3 kn. The current sets 178°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  

  7. You are at 231°T, 1.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.9 kn. The current sets 156°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 048°T, 2.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.9 kn. The current sets 181°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: 274 °T
Speed over the ground: 7.2 kn
Time to the mark: 33 min
No. 226001 (worked solution)
2Course to steer: 218 °T
Speed over the ground: 5.8 kn
Time to the mark: 40 min
No. 226002 (worked solution)
3Course to steer: 073 °T
Speed over the ground: 9.0 kn
Time to the mark: 20 min
No. 226003 (worked solution)
4Course to steer: 251 °T
Speed over the ground: 10.4 kn
Time to the mark: 23 min
No. 226004 (worked solution)
5Course to steer: 074 °T
Speed over the ground: 5.6 kn
Time to the mark: 59 min
No. 226005 (worked solution)
6Course to steer: 079 °T
Speed over the ground: 7.2 kn
Time to the mark: 34 min
No. 226006 (worked solution)
7Course to steer: 237 °T
Speed over the ground: 10.3 kn
Time to the mark: 20 min
No. 226007 (worked solution)
8Course to steer: 279 °T
Speed over the ground: 8.9 kn
Time to the mark: 35 min
No. 226008 (worked solution)