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Worksheet 8 · Skill 6

Course to steer

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  1. You are at 294°T, 1.8 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.7 kn. The current sets 202°T at 0.7 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  

  2. You are at 099°T, 1.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.8 kn. The current sets 100°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  

  3. You are at 308°T, 1.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.9 kn. The current sets 309°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  

  4. You are at 014°T, 2.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.9 kn. The current sets 089°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 033°T, 3.3 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.4 kn. The current sets 056°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  

  6. You are at 309°T, 3.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.7 kn. The current sets 092°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 052°T, 2.3 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 10.0 kn. The current sets 190°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  

  8. You are at 008°T, 1.8 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 11.5 kn. The current sets 023°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: 254 °T
Speed over the ground: 10.1 kn
Time to the mark: 24 min
No. 8001 (worked solution)
2Course to steer: 115 °T
Speed over the ground: 7.6 kn
Time to the mark: 25 min
No. 8002 (worked solution)
3Course to steer: 067 °T
Speed over the ground: 6.1 kn
Time to the mark: 43 min
No. 8003 (worked solution)
4Course to steer: 252 °T
Speed over the ground: 5.6 kn
Time to the mark: 62 min
No. 8004 (worked solution)
5Course to steer: 137 °T
Speed over the ground: 7.6 kn
Time to the mark: 40 min
No. 8005 (worked solution)
6Course to steer: 198 °T
Speed over the ground: 6.5 kn
Time to the mark: 51 min
No. 8006 (worked solution)
7Course to steer: 088 °T
Speed over the ground: 9.9 kn
Time to the mark: 13 min
No. 8007 (worked solution)
8Course to steer: 148 °T
Speed over the ground: 10.3 kn
Time to the mark: 30 min
No. 8008 (worked solution)