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Worksheet 358 · Skill 6

Course to steer

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  1. You are at 335°T, 1.2 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 7.3 kn. The current sets 147°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  

  2. You are at 061°T, 3.6 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.2 kn. The current sets 237°T at 2.2 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  

  3. You are at 036°T, 1.9 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.2 kn. The current sets 158°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 292°T, 1.4 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 8.8 kn. The current sets 133°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  

  5. You are at 011°T, 1.9 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 5.3 kn. The current sets 033°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 054°T, 2.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.9 kn. The current sets 356°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  

  7. You are at 332°T, 1.3 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 8.8 kn. The current sets 215°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  

  8. You are at 011°T, 3.6 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.1 kn. The current sets 241°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: 288 °T
Speed over the ground: 6.4 kn
Time to the mark: 60 min
No. 358001 (worked solution)
2Course to steer: 112 °T
Speed over the ground: 5.3 kn
Time to the mark: 38 min
No. 358002 (worked solution)
3Course to steer: 265 °T
Speed over the ground: 8.9 kn
Time to the mark: 41 min
No. 358003 (worked solution)
4Course to steer: 036 °T
Speed over the ground: 8.8 kn
Time to the mark: 33 min
No. 358004 (worked solution)
5Course to steer: 275 °T
Speed over the ground: 4.8 kn
Time to the mark: 71 min
No. 358005 (worked solution)
6Course to steer: 252 °T
Speed over the ground: 10.7 kn
Time to the mark: 38 min
No. 358006 (worked solution)
7Course to steer: 300 °T
Speed over the ground: 9.2 kn
Time to the mark: 39 min
No. 358007 (worked solution)
8Course to steer: 135 °T
Speed over the ground: 6.9 kn
Time to the mark: 53 min
No. 358008 (worked solution)