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Worksheet 886 · Skill 6

Course to steer

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  1. You are at 110°T, 1.8 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.0 kn. The current sets 168°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 032°T, 4.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.0 kn. The current sets 024°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  

  3. You are at 043°T, 4.6 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 11.9 kn. The current sets 302°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  

  4. You are at 078°T, 2.2 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.2 kn. The current sets 183°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  

  5. You are at 337°T, 1.2 nm from Heron Point Light, bound for Green can "1". Your speed through the water is 6.7 kn. The current sets 108°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  

  6. You are at 201°T, 1.7 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.4 kn. The current sets 129°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  

  7. You are at 019°T, 1.6 nm from Mill stack, bound for Green can "3". Your speed through the water is 8.3 kn. The current sets 075°T at 2.3 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 058°T, 2.1 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.0 kn. The current sets 022°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  

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: 8.2 kn
Time to the mark: 18 min
No. 886001 (worked solution)
2Course to steer: 158 °T
Speed over the ground: 4.8 kn
Time to the mark: 65 min
No. 886002 (worked solution)
3Course to steer: 160 °T
Speed over the ground: 10.4 kn
Time to the mark: 28 min
No. 886003 (worked solution)
4Course to steer: 054 °T
Speed over the ground: 6.3 kn
Time to the mark: 19 min
No. 886004 (worked solution)
5Course to steer: 077 °T
Speed over the ground: 8.0 kn
Time to the mark: 17 min
No. 886005 (worked solution)
6Course to steer: 295 °T
Speed over the ground: 5.0 kn
Time to the mark: 54 min
No. 886006 (worked solution)
7Course to steer: 336 °T
Speed over the ground: 8.3 kn
Time to the mark: 23 min
No. 886007 (worked solution)
8Course to steer: 156 °T
Speed over the ground: 8.1 kn
Time to the mark: 27 min
No. 886008 (worked solution)