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Worksheet 302 · Skill 6

Course to steer

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  1. You are at 023°T, 3.6 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 11.1 kn. The current sets 224°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 052°T, 1.9 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.8 kn. The current sets 221°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  

  3. You are at 169°T, 1.2 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.6 kn. The current sets 119°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  

  4. You are at 030°T, 1.9 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.6 kn. The current sets 194°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 037°T, 1.4 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 10.9 kn. The current sets 047°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  

  6. You are at 031°T, 1.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.6 kn. The current sets 229°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  

  7. You are at 328°T, 1.1 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 8.0 kn. The current sets 300°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 126°T, 1.6 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.1 kn. The current sets 341°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  

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: 152 °T
Speed over the ground: 11.4 kn
Time to the mark: 30 min
No. 302001 (worked solution)
2Course to steer: 276 °T
Speed over the ground: 10.0 kn
Time to the mark: 30 min
No. 302002 (worked solution)
3Course to steer: 084 °T
Speed over the ground: 7.4 kn
Time to the mark: 33 min
No. 302003 (worked solution)
4Course to steer: 082 °T
Speed over the ground: 5.2 kn
Time to the mark: 35 min
No. 302004 (worked solution)
5Course to steer: 090 °T
Speed over the ground: 11.6 kn
Time to the mark: 16 min
No. 302005 (worked solution)
6Course to steer: 091 °T
Speed over the ground: 4.1 kn
Time to the mark: 75 min
No. 302006 (worked solution)
7Course to steer: 022 °T
Speed over the ground: 8.3 kn
Time to the mark: 44 min
No. 302007 (worked solution)
8Course to steer: 120 °T
Speed over the ground: 8.9 kn
Time to the mark: 18 min
No. 302008 (worked solution)