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Worksheet 205 · Skill 6

Course to steer

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  1. You are at 041°T, 1.5 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 11.5 kn. The current sets 264°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 068°T, 1.6 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.4 kn. The current sets 277°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  

  3. You are at 064°T, 2.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 10.0 kn. The current sets 109°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  

  4. You are at 196°T, 1.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.7 kn. The current sets 351°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 035°T, 1.1 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.7 kn. The current sets 210°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 031°T, 2.0 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.2 kn. The current sets 029°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  

  7. You are at 018°T, 2.0 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.7 kn. The current sets 170°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  

  8. You are at 335°T, 2.5 nm from Mill stack, bound for Green can "3". Your speed through the water is 11.6 kn. The current sets 126°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  

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: 13.4 kn
Time to the mark: 33 min
No. 205001 (worked solution)
2Course to steer: 122 °T
Speed over the ground: 8.2 kn
Time to the mark: 25 min
No. 205002 (worked solution)
3Course to steer: 352 °T
Speed over the ground: 9.3 kn
Time to the mark: 18 min
No. 205003 (worked solution)
4Course to steer: 273 °T
Speed over the ground: 6.1 kn
Time to the mark: 46 min
No. 205004 (worked solution)
5Course to steer: 127 °T
Speed over the ground: 10.9 kn
Time to the mark: 23 min
No. 205005 (worked solution)
6Course to steer: 240 °T
Speed over the ground: 6.5 kn
Time to the mark: 63 min
No. 205006 (worked solution)
7Course to steer: 267 °T
Speed over the ground: 8.7 kn
Time to the mark: 29 min
No. 205007 (worked solution)
8Course to steer: 018 °T
Speed over the ground: 11.2 kn
Time to the mark: 14 min
No. 205008 (worked solution)