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Worksheet 241 · Skill 6

Course to steer

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  1. You are at 008°T, 1.3 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 10.9 kn. The current sets 155°T at 1.1 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 024°T, 3.1 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 5.1 kn. The current sets 056°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  

  3. You are at 021°T, 2.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 10.8 kn. The current sets 273°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  

  4. You are at 357°T, 1.8 nm from Mill stack, bound for Green can "1". Your speed through the water is 9.4 kn. The current sets 195°T at 0.6 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  

  5. You are at 147°T, 2.3 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.6 kn. The current sets 020°T at 1.7 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 013°T, 2.0 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.4 kn. The current sets 117°T at 1.7 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 031°T, 2.6 nm from Mill stack, bound for Green can "1". Your speed through the water is 8.0 kn. The current sets 170°T at 1.7 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 207°T, 2.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.0 kn. The current sets 041°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  

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: 284 °T
Speed over the ground: 10.2 kn
Time to the mark: 41 min
No. 241001 (worked solution)
2Course to steer: 097 °T
Speed over the ground: 6.3 kn
Time to the mark: 23 min
No. 241002 (worked solution)
3Course to steer: 128 °T
Speed over the ground: 8.9 kn
Time to the mark: 34 min
No. 241003 (worked solution)
4Course to steer: 311 °T
Speed over the ground: 9.2 kn
Time to the mark: 14 min
No. 241004 (worked solution)
5Course to steer: 249 °T
Speed over the ground: 9.6 kn
Time to the mark: 31 min
No. 241005 (worked solution)
6Course to steer: 253 °T
Speed over the ground: 10.2 kn
Time to the mark: 37 min
No. 241006 (worked solution)
7Course to steer: 297 °T
Speed over the ground: 7.1 kn
Time to the mark: 27 min
No. 241007 (worked solution)
8Course to steer: 239 °T
Speed over the ground: 7.7 kn
Time to the mark: 23 min
No. 241008 (worked solution)