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Worksheet 834 · Skill 6

Course to steer

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  1. You are at 129°T, 3.0 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.4 kn. The current sets 148°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  

  2. You are at 046°T, 4.0 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.4 kn. The current sets 338°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  

  3. You are at 240°T, 1.7 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.7 kn. The current sets 025°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  

  4. You are at 022°T, 2.8 nm from Mill stack, bound for Red nun "2". Your speed through the water is 5.2 kn. The current sets 273°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  

  5. You are at 089°T, 2.2 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.8 kn. The current sets 065°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 028°T, 4.0 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 302°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 022°T, 1.4 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.0 kn. The current sets 013°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 091°T, 1.0 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.0 kn. The current sets 351°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  

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: 276 °T
Speed over the ground: 5.4 kn
Time to the mark: 68 min
No. 834001 (worked solution)
2Course to steer: 148 °T
Speed over the ground: 3.2 kn
Time to the mark: 81 min
No. 834002 (worked solution)
3Course to steer: 273 °T
Speed over the ground: 7.2 kn
Time to the mark: 28 min
No. 834003 (worked solution)
4Course to steer: 301 °T
Speed over the ground: 6.3 kn
Time to the mark: 24 min
No. 834004 (worked solution)
5Course to steer: 132 °T
Speed over the ground: 10.5 kn
Time to the mark: 15 min
No. 834005 (worked solution)
6Course to steer: 157 °T
Speed over the ground: 10.1 kn
Time to the mark: 35 min
No. 834006 (worked solution)
7Course to steer: 129 °T
Speed over the ground: 6.4 kn
Time to the mark: 51 min
No. 834007 (worked solution)
8Course to steer: 104 °T
Speed over the ground: 9.5 kn
Time to the mark: 29 min
No. 834008 (worked solution)