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Worksheet 368 · Skill 6

Course to steer

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  1. You are at 005°T, 1.8 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 5.2 kn. The current sets 164°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  

  2. You are at 297°T, 2.0 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.9 kn. The current sets 088°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  

  3. You are at 208°T, 2.7 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.0 kn. The current sets 278°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  

  4. You are at 115°T, 2.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.1 kn. The current sets 292°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 020°T, 3.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.3 kn. The current sets 008°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  

  6. You are at 015°T, 1.6 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 11.9 kn. The current sets 173°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  

  7. You are at 134°T, 1.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.7 kn. The current sets 163°T at 0.6 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 312°T, 2.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 10.7 kn. The current sets 055°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  

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: 307 °T
Speed over the ground: 4.0 kn
Time to the mark: 83 min
No. 368001 (worked solution)
2Course to steer: 187 °T
Speed over the ground: 8.8 kn
Time to the mark: 17 min
No. 368002 (worked solution)
3Course to steer: 250 °T
Speed over the ground: 6.7 kn
Time to the mark: 22 min
No. 368003 (worked solution)
4Course to steer: 087 °T
Speed over the ground: 9.9 kn
Time to the mark: 22 min
No. 368004 (worked solution)
5Course to steer: 165 °T
Speed over the ground: 5.2 kn
Time to the mark: 68 min
No. 368005 (worked solution)
6Course to steer: 286 °T
Speed over the ground: 11.6 kn
Time to the mark: 35 min
No. 368006 (worked solution)
7Course to steer: 107 °T
Speed over the ground: 8.1 kn
Time to the mark: 21 min
No. 368007 (worked solution)
8Course to steer: 095 °T
Speed over the ground: 11.6 kn
Time to the mark: 29 min
No. 368008 (worked solution)