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Worksheet 2 · Skill 6

Course to steer

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  1. You are at 041°T, 3.0 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.9 kn. The current sets 022°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 323°T, 3.0 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.0 kn. The current sets 207°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  

  3. You are at 088°T, 2.9 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.1 kn. The current sets 273°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  

  4. You are at 140°T, 1.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.9 kn. The current sets 179°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 117°T, 1.7 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 10.6 kn. The current sets 238°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  

  6. You are at 348°T, 2.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.9 kn. The current sets 004°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  

  7. You are at 147°T, 1.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.3 kn. The current sets 196°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 058°T, 0.9 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 12.0 kn. The current sets 071°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  

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: 152 °T
Speed over the ground: 9.3 kn
Time to the mark: 28 min
No. 2001 (worked solution)
2Course to steer: 173 °T
Speed over the ground: 9.5 kn
Time to the mark: 25 min
No. 2002 (worked solution)
3Course to steer: 354 °T
Speed over the ground: 11.3 kn
Time to the mark: 20 min
No. 2003 (worked solution)
4Course to steer: 268 °T
Speed over the ground: 9.0 kn
Time to the mark: 18 min
No. 2004 (worked solution)
5Course to steer: 015 °T
Speed over the ground: 9.5 kn
Time to the mark: 29 min
No. 2005 (worked solution)
6Course to steer: 193 °T
Speed over the ground: 6.4 kn
Time to the mark: 39 min
No. 2006 (worked solution)
7Course to steer: 066 °T
Speed over the ground: 7.3 kn
Time to the mark: 38 min
No. 2007 (worked solution)
8Course to steer: 044 °T
Speed over the ground: 13.4 kn
Time to the mark: 10 min
No. 2008 (worked solution)