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Worksheet 892 · Skill 6

Course to steer

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  1. You are at 175°T, 1.2 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.4 kn. The current sets 290°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  

  2. You are at 069°T, 1.5 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 9.5 kn. The current sets 212°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  

  3. You are at 154°T, 2.7 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.0 kn. The current sets 348°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  

  4. You are at 045°T, 4.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.0 kn. The current sets 232°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  

  5. You are at 334°T, 2.3 nm from Mill stack, bound for Green can "3". Your speed through the water is 9.9 kn. The current sets 046°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 283°T, 2.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.3 kn. The current sets 266°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 040°T, 2.6 nm from Mill stack, bound for Red nun "2". Your speed through the water is 9.7 kn. The current sets 250°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  

  8. You are at 357°T, 1.9 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 5.6 kn. The current sets 139°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  

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: 236 °T
Speed over the ground: 7.6 kn
Time to the mark: 27 min
No. 892001 (worked solution)
2Course to steer: 067 °T
Speed over the ground: 8.2 kn
Time to the mark: 20 min
No. 892002 (worked solution)
3Course to steer: 053 °T
Speed over the ground: 7.2 kn
Time to the mark: 39 min
No. 892003 (worked solution)
4Course to steer: 165 °T
Speed over the ground: 9.8 kn
Time to the mark: 32 min
No. 892004 (worked solution)
5Course to steer: 019 °T
Speed over the ground: 11.6 kn
Time to the mark: 14 min
No. 892005 (worked solution)
6Course to steer: 183 °T
Speed over the ground: 7.6 kn
Time to the mark: 30 min
No. 892006 (worked solution)
7Course to steer: 309 °T
Speed over the ground: 10.8 kn
Time to the mark: 19 min
No. 892007 (worked solution)
8Course to steer: 077 °T
Speed over the ground: 6.3 kn
Time to the mark: 24 min
No. 892008 (worked solution)