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Worksheet 230 · Skill 6

Course to steer

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Plot Pass worksheet. Plot Pass $1.95/month or $19.50/year · Free during preview. Plotroom · cedarpointmarina.net · invented chart, not for navigation.

  1. You are at 248°T, 1.7 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.1 kn. The current sets 195°T at 0.5 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 280°T, 2.9 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.4 kn. The current sets 149°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  

  3. You are at 033°T, 2.1 nm from Mill stack, bound for Green can "1". Your speed through the water is 8.3 kn. The current sets 351°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  

  4. You are at 042°T, 2.4 nm from Mill stack, bound for Green can "3". Your speed through the water is 6.2 kn. The current sets 168°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 158°T, 1.2 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 10.1 kn. The current sets 285°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 034°T, 3.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.4 kn. The current sets 017°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  

  7. You are at 220°T, 1.2 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.8 kn. The current sets 332°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  

  8. You are at 059°T, 1.5 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 5.1 kn. The current sets 032°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  

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: 313 °T
Speed over the ground: 5.9 kn
Time to the mark: 25 min
No. 230001 (worked solution)
2Course to steer: 191 °T
Speed over the ground: 7.7 kn
Time to the mark: 24 min
No. 230002 (worked solution)
3Course to steer: 285 °T
Speed over the ground: 9.1 kn
Time to the mark: 21 min
No. 230003 (worked solution)
4Course to steer: 335 °T
Speed over the ground: 5.0 kn
Time to the mark: 38 min
No. 230004 (worked solution)
5Course to steer: 252 °T
Speed over the ground: 11.7 kn
Time to the mark: 11 min
No. 230005 (worked solution)
6Course to steer: 173 °T
Speed over the ground: 3.4 kn
Time to the mark: 88 min
No. 230006 (worked solution)
7Course to steer: 266 °T
Speed over the ground: 11.6 kn
Time to the mark: 24 min
No. 230007 (worked solution)
8Course to steer: 053 °T
Speed over the ground: 6.5 kn
Time to the mark: 30 min
No. 230008 (worked solution)