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Worksheet 356 · Skill 6

Course to steer

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  1. You are at 326°T, 3.0 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 9.1 kn. The current sets 334°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 324°T, 2.2 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.8 kn. The current sets 147°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 044°T, 3.7 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.0 kn. The current sets 217°T at 2.0 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  

  4. You are at 034°T, 2.0 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 11.2 kn. The current sets 045°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 043°T, 2.8 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.2 kn. The current sets 065°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 071°T, 2.1 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 9.3 kn. The current sets 009°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  

  7. You are at 053°T, 2.7 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.3 kn. The current sets 015°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 014°T, 2.6 nm from Mill stack, bound for Red nun "2". Your speed through the water is 9.2 kn. The current sets 189°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  

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: 272 °T
Speed over the ground: 9.5 kn
Time to the mark: 29 min
No. 356001 (worked solution)
2Course to steer: 208 °T
Speed over the ground: 8.3 kn
Time to the mark: 33 min
No. 356002 (worked solution)
3Course to steer: 125 °T
Speed over the ground: 10.1 kn
Time to the mark: 26 min
No. 356003 (worked solution)
4Course to steer: 351 °T
Speed over the ground: 12.1 kn
Time to the mark: 25 min
No. 356004 (worked solution)
5Course to steer: 119 °T
Speed over the ground: 9.4 kn
Time to the mark: 14 min
No. 356005 (worked solution)
6Course to steer: 042 °T
Speed over the ground: 10.5 kn
Time to the mark: 16 min
No. 356006 (worked solution)
7Course to steer: 157 °T
Speed over the ground: 5.1 kn
Time to the mark: 44 min
No. 356007 (worked solution)
8Course to steer: 313 °T
Speed over the ground: 8.4 kn
Time to the mark: 16 min
No. 356008 (worked solution)