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Worksheet 9 · 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 323°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 9.6 kn. The current sets 024°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  

  2. You are at 065°T, 1.1 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 9.8 kn. The current sets 138°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 079°T, 1.2 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 5.1 kn. The current sets 285°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  

  4. You are at 256°T, 3.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.9 kn. The current sets 312°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  

  5. You are at 010°T, 1.8 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.0 kn. The current sets 153°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 064°T, 3.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.0 kn. The current sets 076°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  

  7. You are at 041°T, 3.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.9 kn. The current sets 002°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  

  8. You are at 005°T, 1.9 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.7 kn. The current sets 278°T at 2.1 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  

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: 263 °T
Speed over the ground: 9.2 kn
Time to the mark: 18 min
No. 9001 (worked solution)
2Course to steer: 283 °T
Speed over the ground: 8.3 kn
Time to the mark: 33 min
No. 9002 (worked solution)
3Course to steer: 062 °T
Speed over the ground: 3.7 kn
Time to the mark: 35 min
No. 9003 (worked solution)
4Course to steer: 184 °T
Speed over the ground: 8.5 kn
Time to the mark: 16 min
No. 9004 (worked solution)
5Course to steer: 260 °T
Speed over the ground: 8.7 kn
Time to the mark: 43 min
No. 9005 (worked solution)
6Course to steer: 177 °T
Speed over the ground: 8.8 kn
Time to the mark: 24 min
No. 9006 (worked solution)
7Course to steer: 166 °T
Speed over the ground: 6.1 kn
Time to the mark: 47 min
No. 9007 (worked solution)
8Course to steer: 251 °T
Speed over the ground: 13.6 kn
Time to the mark: 17 min
No. 9008 (worked solution)