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Worksheet 341 · Skill 6

Course to steer

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  1. You are at 352°T, 1.6 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 11.7 kn. The current sets 210°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  

  2. You are at 290°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 12.0 kn. The current sets 020°T at 1.9 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  

  3. You are at 031°T, 1.9 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 5.5 kn. The current sets 046°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  

  4. You are at 253°T, 1.5 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.8 kn. The current sets 217°T at 0.5 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 009°T, 2.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.6 kn. The current sets 224°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  

  6. You are at 016°T, 1.4 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 9.3 kn. The current sets 133°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  

  7. You are at 181°T, 1.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.9 kn. The current sets 166°T at 0.7 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 339°T, 2.8 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 9.3 kn. The current sets 313°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: 307 °T
Speed over the ground: 11.6 kn
Time to the mark: 27 min
No. 341001 (worked solution)
2Course to steer: 272 °T
Speed over the ground: 11.6 kn
Time to the mark: 12 min
No. 341002 (worked solution)
3Course to steer: 279 °T
Speed over the ground: 4.8 kn
Time to the mark: 78 min
No. 341003 (worked solution)
4Course to steer: 282 °T
Speed over the ground: 6.0 kn
Time to the mark: 34 min
No. 341004 (worked solution)
5Course to steer: 109 °T
Speed over the ground: 8.0 kn
Time to the mark: 46 min
No. 341005 (worked solution)
6Course to steer: 287 °T
Speed over the ground: 7.1 kn
Time to the mark: 61 min
No. 341006 (worked solution)
7Course to steer: 288 °T
Speed over the ground: 10.5 kn
Time to the mark: 28 min
No. 341007 (worked solution)
8Course to steer: 257 °T
Speed over the ground: 10.9 kn
Time to the mark: 32 min
No. 341008 (worked solution)