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Worksheet 242 · Skill 6

Course to steer

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  1. You are at 055°T, 2.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.3 kn. The current sets 300°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  

  2. You are at 015°T, 2.7 nm from Mill stack, bound for Green can "1". Your speed through the water is 11.1 kn. The current sets 196°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  

  3. You are at 042°T, 1.8 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 7.5 kn. The current sets 133°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  

  4. You are at 243°T, 1.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.1 kn. The current sets 054°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  

  5. You are at 340°T, 2.6 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 8.3 kn. The current sets 321°T at 2.5 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 285°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.2 kn. The current sets 146°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 332°T, 1.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.0 kn. The current sets 301°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  

  8. You are at 010°T, 2.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.3 kn. The current sets 071°T at 0.9 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  

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: 134 °T
Speed over the ground: 5.1 kn
Time to the mark: 43 min
No. 242001 (worked solution)
2Course to steer: 290 °T
Speed over the ground: 11.1 kn
Time to the mark: 14 min
No. 242002 (worked solution)
3Course to steer: 297 °T
Speed over the ground: 6.1 kn
Time to the mark: 65 min
No. 242003 (worked solution)
4Course to steer: 269 °T
Speed over the ground: 8.9 kn
Time to the mark: 25 min
No. 242004 (worked solution)
5Course to steer: 264 °T
Speed over the ground: 9.9 kn
Time to the mark: 32 min
No. 242005 (worked solution)
6Course to steer: 268 °T
Speed over the ground: 9.2 kn
Time to the mark: 28 min
No. 242006 (worked solution)
7Course to steer: 058 °T
Speed over the ground: 6.5 kn
Time to the mark: 36 min
No. 242007 (worked solution)
8Course to steer: 127 °T
Speed over the ground: 11.8 kn
Time to the mark: 31 min
No. 242008 (worked solution)