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Worksheet 33 · Skill 6

Course to steer

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  1. You are at 036°T, 4.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.1 kn. The current sets 005°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  

  2. You are at 295°T, 4.0 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.0 kn. The current sets 226°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  

  3. You are at 036°T, 1.3 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.0 kn. The current sets 194°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  

  4. You are at 244°T, 2.2 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 12.0 kn. The current sets 337°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  

  5. You are at 025°T, 2.0 nm from Mill stack, bound for Red nun "2". Your speed through the water is 10.1 kn. The current sets 216°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  

  6. You are at 273°T, 2.1 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.0 kn. The current sets 324°T at 0.9 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 298°T, 3.6 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.8 kn. The current sets 099°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  

  8. You are at 130°T, 1.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.5 kn. The current sets 077°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  

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: 174 °T
Speed over the ground: 4.7 kn
Time to the mark: 72 min
No. 33001 (worked solution)
2Course to steer: 163 °T
Speed over the ground: 8.7 kn
Time to the mark: 29 min
No. 33002 (worked solution)
3Course to steer: 104 °T
Speed over the ground: 9.0 kn
Time to the mark: 34 min
No. 33003 (worked solution)
4Course to steer: 046 °T
Speed over the ground: 12.5 kn
Time to the mark: 30 min
No. 33004 (worked solution)
5Course to steer: 323 °T
Speed over the ground: 9.7 kn
Time to the mark: 17 min
No. 33005 (worked solution)
6Course to steer: 195 °T
Speed over the ground: 9.5 kn
Time to the mark: 18 min
No. 33006 (worked solution)
7Course to steer: 190 °T
Speed over the ground: 11.8 kn
Time to the mark: 24 min
No. 33007 (worked solution)
8Course to steer: 275 °T
Speed over the ground: 9.2 kn
Time to the mark: 40 min
No. 33008 (worked solution)