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Worksheet 174 · 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 023°T, 1.7 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 9.0 kn. The current sets 346°T at 2.2 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  

  2. You are at 040°T, 1.2 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 7.0 kn. The current sets 086°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  

  3. You are at 336°T, 1.4 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.7 kn. The current sets 310°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  

  4. You are at 277°T, 2.1 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 7.4 kn. The current sets 030°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 028°T, 2.2 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.0 kn. The current sets 185°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  

  6. You are at 300°T, 4.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.0 kn. The current sets 306°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  

  7. You are at 190°T, 1.7 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 9.7 kn. The current sets 135°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 050°T, 2.0 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 6.5 kn. The current sets 067°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  

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: 080 °T
Speed over the ground: 9.1 kn
Time to the mark: 22 min
No. 174001 (worked solution)
2Course to steer: 340 °T
Speed over the ground: 6.8 kn
Time to the mark: 52 min
No. 174002 (worked solution)
3Course to steer: 241 °T
Speed over the ground: 12.5 kn
Time to the mark: 25 min
No. 174003 (worked solution)
4Course to steer: 248 °T
Speed over the ground: 6.4 kn
Time to the mark: 32 min
No. 174004 (worked solution)
5Course to steer: 261 °T
Speed over the ground: 5.4 kn
Time to the mark: 77 min
No. 174005 (worked solution)
6Course to steer: 175 °T
Speed over the ground: 9.3 kn
Time to the mark: 33 min
No. 174006 (worked solution)
7Course to steer: 014 °T
Speed over the ground: 8.9 kn
Time to the mark: 41 min
No. 174007 (worked solution)
8Course to steer: 281 °T
Speed over the ground: 5.2 kn
Time to the mark: 80 min
No. 174008 (worked solution)