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Worksheet 334 · Skill 6

Course to steer

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  1. You are at 057°T, 1.7 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.7 kn. The current sets 040°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 334°T, 2.4 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.7 kn. The current sets 004°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  

  3. You are at 310°T, 3.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.8 kn. The current sets 035°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  

  4. You are at 029°T, 2.0 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 12.0 kn. The current sets 102°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 343°T, 2.3 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.0 kn. The current sets 049°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  

  6. You are at 047°T, 1.6 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.0 kn. The current sets 083°T at 1.6 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  

  7. You are at 208°T, 2.6 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 10.2 kn. The current sets 298°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  

  8. You are at 358°T, 1.0 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 7.2 kn. The current sets 245°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  

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: 164 °T
Speed over the ground: 4.8 kn
Time to the mark: 46 min
No. 334001 (worked solution)
2Course to steer: 121 °T
Speed over the ground: 6.0 kn
Time to the mark: 51 min
No. 334002 (worked solution)
3Course to steer: 197 °T
Speed over the ground: 9.1 kn
Time to the mark: 35 min
No. 334003 (worked solution)
4Course to steer: 021 °T
Speed over the ground: 12.5 kn
Time to the mark: 11 min
No. 334004 (worked solution)
5Course to steer: 213 °T
Speed over the ground: 8.2 kn
Time to the mark: 44 min
No. 334005 (worked solution)
6Course to steer: 148 °T
Speed over the ground: 10.8 kn
Time to the mark: 22 min
No. 334006 (worked solution)
7Course to steer: 063 °T
Speed over the ground: 9.4 kn
Time to the mark: 40 min
No. 334007 (worked solution)
8Course to steer: 291 °T
Speed over the ground: 8.6 kn
Time to the mark: 48 min
No. 334008 (worked solution)