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Worksheet 354 · Skill 6

Course to steer

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  1. You are at 016°T, 3.3 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.0 kn. The current sets 291°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  

  2. You are at 040°T, 2.7 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.5 kn. The current sets 010°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 279°T, 3.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.3 kn. The current sets 299°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 176°T, 1.1 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.1 kn. The current sets 061°T at 2.0 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  

  5. You are at 119°T, 1.1 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 8.5 kn. The current sets 270°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  

  6. You are at 284°T, 3.8 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.7 kn. The current sets 142°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 035°T, 1.9 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.7 kn. The current sets 052°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  

  8. You are at 049°T, 2.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.0 kn. The current sets 277°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  

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: 124 °T
Speed over the ground: 6.3 kn
Time to the mark: 57 min
No. 354001 (worked solution)
2Course to steer: 251 °T
Speed over the ground: 10.9 kn
Time to the mark: 30 min
No. 354002 (worked solution)
3Course to steer: 181 °T
Speed over the ground: 7.0 kn
Time to the mark: 31 min
No. 354003 (worked solution)
4Course to steer: 114 °T
Speed over the ground: 9.4 kn
Time to the mark: 24 min
No. 354004 (worked solution)
5Course to steer: 024 °T
Speed over the ground: 8.1 kn
Time to the mark: 34 min
No. 354005 (worked solution)
6Course to steer: 173 °T
Speed over the ground: 8.9 kn
Time to the mark: 23 min
No. 354006 (worked solution)
7Course to steer: 163 °T
Speed over the ground: 7.2 kn
Time to the mark: 37 min
No. 354007 (worked solution)
8Course to steer: 115 °T
Speed over the ground: 3.2 kn
Time to the mark: 77 min
No. 354008 (worked solution)