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Worksheet 95 · Skill 6

Course to steer

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  1. You are at 342°T, 2.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.9 kn. The current sets 306°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  

  2. You are at 085°T, 1.4 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 5.2 kn. The current sets 303°T at 1.1 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 134°T, 2.6 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.6 kn. The current sets 343°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  

  4. You are at 043°T, 1.6 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.2 kn. The current sets 091°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  

  5. You are at 148°T, 1.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.8 kn. The current sets 045°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  

  6. You are at 030°T, 2.2 nm from Mill stack, bound for Green can "1". Your speed through the water is 9.0 kn. The current sets 305°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 293°T, 4.3 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 11.4 kn. The current sets 255°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  

  8. You are at 129°T, 1.4 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.2 kn. The current sets 032°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  

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: 200 °T
Speed over the ground: 8.6 kn
Time to the mark: 42 min
No. 95001 (worked solution)
2Course to steer: 040 °T
Speed over the ground: 5.2 kn
Time to the mark: 25 min
No. 95002 (worked solution)
3Course to steer: 262 °T
Speed over the ground: 7.0 kn
Time to the mark: 31 min
No. 95003 (worked solution)
4Course to steer: 137 °T
Speed over the ground: 8.5 kn
Time to the mark: 29 min
No. 95004 (worked solution)
5Course to steer: 264 °T
Speed over the ground: 4.3 kn
Time to the mark: 82 min
No. 95005 (worked solution)
6Course to steer: 289 °T
Speed over the ground: 11.4 kn
Time to the mark: 16 min
No. 95006 (worked solution)
7Course to steer: 164 °T
Speed over the ground: 11.4 kn
Time to the mark: 23 min
No. 95007 (worked solution)
8Course to steer: 271 °T
Speed over the ground: 6.7 kn
Time to the mark: 53 min
No. 95008 (worked solution)