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Worksheet 268 · Skill 6

Course to steer

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  1. You are at 291°T, 2.2 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 11.2 kn. The current sets 231°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  

  2. You are at 244°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 10.5 kn. The current sets 040°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  

  3. You are at 341°T, 2.3 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.2 kn. The current sets 040°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 041°T, 1.9 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 6.5 kn. The current sets 224°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  

  5. You are at 279°T, 2.4 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.9 kn. The current sets 170°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  

  6. You are at 241°T, 2.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.4 kn. The current sets 254°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  

  7. You are at 250°T, 3.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.7 kn. The current sets 267°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 048°T, 2.1 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.1 kn. The current sets 076°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  

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: 325 °T
Speed over the ground: 11.2 kn
Time to the mark: 23 min
No. 268001 (worked solution)
2Course to steer: 292 °T
Speed over the ground: 10.0 kn
Time to the mark: 16 min
No. 268002 (worked solution)
3Course to steer: 199 °T
Speed over the ground: 6.8 kn
Time to the mark: 34 min
No. 268003 (worked solution)
4Course to steer: 311 °T
Speed over the ground: 7.0 kn
Time to the mark: 57 min
No. 268004 (worked solution)
5Course to steer: 197 °T
Speed over the ground: 9.5 kn
Time to the mark: 19 min
No. 268005 (worked solution)
6Course to steer: 211 °T
Speed over the ground: 6.1 kn
Time to the mark: 23 min
No. 268006 (worked solution)
7Course to steer: 182 °T
Speed over the ground: 6.1 kn
Time to the mark: 21 min
No. 268007 (worked solution)
8Course to steer: 141 °T
Speed over the ground: 9.6 kn
Time to the mark: 25 min
No. 268008 (worked solution)