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Worksheet 656 · Skill 6

Course to steer

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  1. You are at 051°T, 1.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.9 kn. The current sets 004°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  

  2. You are at 090°T, 2.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.5 kn. The current sets 031°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  

  3. You are at 089°T, 1.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.8 kn. The current sets 341°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  

  4. You are at 302°T, 2.2 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 11.1 kn. The current sets 274°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  

  5. You are at 131°T, 1.8 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 7.0 kn. The current sets 194°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 015°T, 2.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.9 kn. The current sets 175°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  

  7. You are at 091°T, 3.1 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.5 kn. The current sets 063°T at 1.3 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  

  8. You are at 007°T, 1.7 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 10.9 kn. The current sets 358°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: 114 °T
Speed over the ground: 7.6 kn
Time to the mark: 38 min
No. 656001 (worked solution)
2Course to steer: 108 °T
Speed over the ground: 6.8 kn
Time to the mark: 28 min
No. 656002 (worked solution)
3Course to steer: 136 °T
Speed over the ground: 8.8 kn
Time to the mark: 20 min
No. 656003 (worked solution)
4Course to steer: 168 °T
Speed over the ground: 10.8 kn
Time to the mark: 15 min
No. 656004 (worked solution)
5Course to steer: 289 °T
Speed over the ground: 7.1 kn
Time to the mark: 58 min
No. 656005 (worked solution)
6Course to steer: 255 °T
Speed over the ground: 12.2 kn
Time to the mark: 28 min
No. 656006 (worked solution)
7Course to steer: 108 °T
Speed over the ground: 6.5 kn
Time to the mark: 24 min
No. 656007 (worked solution)
8Course to steer: 272 °T
Speed over the ground: 11.0 kn
Time to the mark: 39 min
No. 656008 (worked solution)