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Worksheet 57 · 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 257°T, 2.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.8 kn. The current sets 347°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  

  2. You are at 326°T, 2.7 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 9.6 kn. The current sets 300°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  

  3. You are at 318°T, 2.8 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 9.9 kn. The current sets 061°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  

  4. You are at 055°T, 3.2 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 9.6 kn. The current sets 271°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  

  5. You are at 024°T, 2.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.9 kn. The current sets 088°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  

  6. You are at 028°T, 3.8 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.1 kn. The current sets 269°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  

  7. You are at 038°T, 2.6 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.3 kn. The current sets 060°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  

  8. You are at 220°T, 1.0 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.2 kn. The current sets 211°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  

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: 258 °T
Speed over the ground: 7.0 kn
Time to the mark: 22 min
No. 57001 (worked solution)
2Course to steer: 171 °T
Speed over the ground: 8.3 kn
Time to the mark: 28 min
No. 57002 (worked solution)
3Course to steer: 184 °T
Speed over the ground: 9.3 kn
Time to the mark: 24 min
No. 57003 (worked solution)
4Course to steer: 353 °T
Speed over the ground: 9.8 kn
Time to the mark: 12 min
No. 57004 (worked solution)
5Course to steer: 133 °T
Speed over the ground: 8.2 kn
Time to the mark: 40 min
No. 57005 (worked solution)
6Course to steer: 156 °T
Speed over the ground: 8.8 kn
Time to the mark: 39 min
No. 57006 (worked solution)
7Course to steer: 120 °T
Speed over the ground: 9.8 kn
Time to the mark: 15 min
No. 57007 (worked solution)
8Course to steer: 286 °T
Speed over the ground: 7.4 kn
Time to the mark: 34 min
No. 57008 (worked solution)