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Worksheet 376 · Skill 6

Course to steer

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  1. You are at 018°T, 1.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.5 kn. The current sets 041°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  

  2. You are at 042°T, 3.2 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.7 kn. The current sets 353°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  

  3. You are at 285°T, 2.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.6 kn. The current sets 069°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  

  4. You are at 035°T, 1.0 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 5.5 kn. The current sets 070°T at 1.5 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  

  5. You are at 245°T, 2.4 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.2 kn. The current sets 135°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  

  6. You are at 091°T, 2.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 11.9 kn. The current sets 124°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 359°T, 1.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.3 kn. The current sets 169°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  

  8. You are at 022°T, 3.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.2 kn. The current sets 100°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  

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: 139 °T
Speed over the ground: 5.5 kn
Time to the mark: 51 min
No. 376001 (worked solution)
2Course to steer: 126 °T
Speed over the ground: 6.1 kn
Time to the mark: 21 min
No. 376002 (worked solution)
3Course to steer: 205 °T
Speed over the ground: 6.9 kn
Time to the mark: 34 min
No. 376003 (worked solution)
4Course to steer: 287 °T
Speed over the ground: 4.4 kn
Time to the mark: 86 min
No. 376004 (worked solution)
5Course to steer: 025 °T
Speed over the ground: 6.8 kn
Time to the mark: 58 min
No. 376005 (worked solution)
6Course to steer: 049 °T
Speed over the ground: 12.3 kn
Time to the mark: 11 min
No. 376006 (worked solution)
7Course to steer: 128 °T
Speed over the ground: 5.9 kn
Time to the mark: 52 min
No. 376007 (worked solution)
8Course to steer: 159 °T
Speed over the ground: 6.5 kn
Time to the mark: 52 min
No. 376008 (worked solution)