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Worksheet 816 · Skill 6

Course to steer

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  1. You are at 328°T, 3.0 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 7.6 kn. The current sets 134°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  

  2. You are at 349°T, 1.6 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 10.9 kn. The current sets 190°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  

  3. You are at 006°T, 2.0 nm from Mill stack, bound for Red nun "2". Your speed through the water is 7.3 kn. The current sets 218°T at 0.5 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  

  4. You are at 094°T, 3.4 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.7 kn. The current sets 132°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  

  5. You are at 046°T, 2.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.2 kn. The current sets 351°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 117°T, 1.9 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.9 kn. The current sets 152°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 143°T, 1.3 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.1 kn. The current sets 097°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  

  8. You are at 334°T, 2.7 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 11.1 kn. The current sets 022°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  

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: 279 °T
Speed over the ground: 7.0 kn
Time to the mark: 40 min
No. 816001 (worked solution)
2Course to steer: 289 °T
Speed over the ground: 10.8 kn
Time to the mark: 34 min
No. 816002 (worked solution)
3Course to steer: 324 °T
Speed over the ground: 7.2 kn
Time to the mark: 19 min
No. 816003 (worked solution)
4Course to steer: 088 °T
Speed over the ground: 9.3 kn
Time to the mark: 14 min
No. 816004 (worked solution)
5Course to steer: 249 °T
Speed over the ground: 11.0 kn
Time to the mark: 36 min
No. 816005 (worked solution)
6Course to steer: 286 °T
Speed over the ground: 6.1 kn
Time to the mark: 65 min
No. 816006 (worked solution)
7Course to steer: 251 °T
Speed over the ground: 7.5 kn
Time to the mark: 39 min
No. 816007 (worked solution)
8Course to steer: 259 °T
Speed over the ground: 10.0 kn
Time to the mark: 34 min
No. 816008 (worked solution)