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Worksheet 63 · Skill 6

Course to steer

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  1. You are at 293°T, 2.2 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 5.6 kn. The current sets 070°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  

  2. You are at 096°T, 3.3 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.1 kn. The current sets 337°T at 2.0 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  

  3. You are at 253°T, 2.7 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.4 kn. The current sets 328°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  

  4. You are at 277°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.7 kn. The current sets 214°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  

  5. You are at 288°T, 1.4 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.5 kn. The current sets 332°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  

  6. You are at 110°T, 1.7 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.3 kn. The current sets 043°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  

  7. You are at 021°T, 1.7 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.0 kn. The current sets 313°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 270°T, 2.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.3 kn. The current sets 169°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  

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: 290 °T
Speed over the ground: 4.9 kn
Time to the mark: 57 min
No. 63001 (worked solution)
2Course to steer: 111 °T
Speed over the ground: 4.9 kn
Time to the mark: 28 min
No. 63002 (worked solution)
3Course to steer: 050 °T
Speed over the ground: 11.5 kn
Time to the mark: 34 min
No. 63003 (worked solution)
4Course to steer: 303 °T
Speed over the ground: 5.9 kn
Time to the mark: 22 min
No. 63004 (worked solution)
5Course to steer: 254 °T
Speed over the ground: 12.0 kn
Time to the mark: 17 min
No. 63005 (worked solution)
6Course to steer: 243 °T
Speed over the ground: 6.1 kn
Time to the mark: 49 min
No. 63006 (worked solution)
7Course to steer: 240 °T
Speed over the ground: 5.4 kn
Time to the mark: 71 min
No. 63007 (worked solution)
8Course to steer: 274 °T
Speed over the ground: 10.1 kn
Time to the mark: 15 min
No. 63008 (worked solution)