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Worksheet 349 · Skill 6

Course to steer

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  1. You are at 015°T, 2.5 nm from Mill stack, bound for Green can "3". Your speed through the water is 8.4 kn. The current sets 054°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  

  2. You are at 353°T, 1.9 nm from Heron Point Light, bound for Green can "1". Your speed through the water is 9.5 kn. The current sets 005°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 214°T, 1.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.2 kn. The current sets 108°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  

  4. You are at 281°T, 3.2 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.0 kn. The current sets 084°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  

  5. You are at 285°T, 3.8 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.3 kn. The current sets 224°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  

  6. You are at 351°T, 1.1 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 6.9 kn. The current sets 176°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  

  7. You are at 193°T, 2.3 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 10.2 kn. The current sets 095°T at 2.4 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 339°T, 1.4 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 10.1 kn. The current sets 218°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: 332 °T
Speed over the ground: 9.0 kn
Time to the mark: 15 min
No. 349001 (worked solution)
2Course to steer: 111 °T
Speed over the ground: 9.2 kn
Time to the mark: 14 min
No. 349002 (worked solution)
3Course to steer: 250 °T
Speed over the ground: 8.4 kn
Time to the mark: 18 min
No. 349003 (worked solution)
4Course to steer: 198 °T
Speed over the ground: 4.6 kn
Time to the mark: 41 min
No. 349004 (worked solution)
5Course to steer: 155 °T
Speed over the ground: 8.3 kn
Time to the mark: 26 min
No. 349005 (worked solution)
6Course to steer: 308 °T
Speed over the ground: 6.3 kn
Time to the mark: 53 min
No. 349006 (worked solution)
7Course to steer: 043 °T
Speed over the ground: 11.8 kn
Time to the mark: 29 min
No. 349007 (worked solution)
8Course to steer: 289 °T
Speed over the ground: 10.8 kn
Time to the mark: 35 min
No. 349008 (worked solution)