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Worksheet 664 · 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 179°T, 1.4 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.4 kn. The current sets 270°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  

  2. You are at 190°T, 2.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.2 kn. The current sets 221°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  

  3. You are at 007°T, 3.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.6 kn. The current sets 204°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  

  4. You are at 041°T, 2.0 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 9.0 kn. The current sets 176°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 079°T, 1.8 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.4 kn. The current sets 290°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  

  6. You are at 323°T, 2.3 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.7 kn. The current sets 087°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  

  7. You are at 301°T, 2.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.2 kn. The current sets 129°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  

  8. You are at 263°T, 2.7 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 8.3 kn. The current sets 169°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  

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: 309 °T
Speed over the ground: 13.1 kn
Time to the mark: 19 min
No. 664001 (worked solution)
2Course to steer: 258 °T
Speed over the ground: 12.4 kn
Time to the mark: 16 min
No. 664002 (worked solution)
3Course to steer: 116 °T
Speed over the ground: 11.8 kn
Time to the mark: 32 min
No. 664003 (worked solution)
4Course to steer: 049 °T
Speed over the ground: 8.1 kn
Time to the mark: 21 min
No. 664004 (worked solution)
5Course to steer: 076 °T
Speed over the ground: 6.0 kn
Time to the mark: 24 min
No. 664005 (worked solution)
6Course to steer: 210 °T
Speed over the ground: 8.2 kn
Time to the mark: 40 min
No. 664006 (worked solution)
7Course to steer: 207 °T
Speed over the ground: 9.5 kn
Time to the mark: 29 min
No. 664007 (worked solution)
8Course to steer: 035 °T
Speed over the ground: 6.9 kn
Time to the mark: 56 min
No. 664008 (worked solution)