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Worksheet 465 · 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 026°T, 2.5 nm from Mill stack, bound for Red nun "2". Your speed through the water is 5.4 kn. The current sets 190°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  

  2. You are at 047°T, 2.7 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 12.0 kn. The current sets 180°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  

  3. You are at 039°T, 2.0 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 278°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 253°T, 2.9 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.5 kn. The current sets 106°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  

  5. You are at 000°T, 1.2 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 9.1 kn. The current sets 310°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  

  6. You are at 145°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.2 kn. The current sets 157°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  

  7. You are at 284°T, 2.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.1 kn. The current sets 251°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  

  8. You are at 348°T, 1.6 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 7.3 kn. The current sets 280°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  

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: 312 °T
Speed over the ground: 4.9 kn
Time to the mark: 33 min
No. 465001 (worked solution)
2Course to steer: 048 °T
Speed over the ground: 10.5 kn
Time to the mark: 12 min
No. 465002 (worked solution)
3Course to steer: 247 °T
Speed over the ground: 13.5 kn
Time to the mark: 31 min
No. 465003 (worked solution)
4Course to steer: 212 °T
Speed over the ground: 7.2 kn
Time to the mark: 20 min
No. 465004 (worked solution)
5Course to steer: 261 °T
Speed over the ground: 9.8 kn
Time to the mark: 22 min
No. 465005 (worked solution)
6Course to steer: 302 °T
Speed over the ground: 9.5 kn
Time to the mark: 30 min
No. 465006 (worked solution)
7Course to steer: 153 °T
Speed over the ground: 8.0 kn
Time to the mark: 17 min
No. 465007 (worked solution)
8Course to steer: 081 °T
Speed over the ground: 5.0 kn
Time to the mark: 51 min
No. 465008 (worked solution)