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Worksheet 367 · Skill 6

Course to steer

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  1. You are at 307°T, 2.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 9.5 kn. The current sets 058°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  

  2. You are at 320°T, 1.7 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 10.3 kn. The current sets 063°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 019°T, 1.7 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 12.0 kn. The current sets 229°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, 2.8 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.0 kn. The current sets 243°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  

  5. You are at 021°T, 3.6 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 8.7 kn. The current sets 089°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  

  6. You are at 234°T, 2.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.7 kn. The current sets 313°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 282°T, 1.4 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.7 kn. The current sets 234°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  

  8. You are at 261°T, 2.2 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 7.2 kn. The current sets 223°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  

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: 094 °T
Speed over the ground: 10.6 kn
Time to the mark: 32 min
No. 367001 (worked solution)
2Course to steer: 277 °T
Speed over the ground: 9.5 kn
Time to the mark: 37 min
No. 367002 (worked solution)
3Course to steer: 253 °T
Speed over the ground: 13.9 kn
Time to the mark: 28 min
No. 367003 (worked solution)
4Course to steer: 119 °T
Speed over the ground: 4.2 kn
Time to the mark: 66 min
No. 367004 (worked solution)
5Course to steer: 151 °T
Speed over the ground: 9.0 kn
Time to the mark: 38 min
No. 367005 (worked solution)
6Course to steer: 050 °T
Speed over the ground: 6.7 kn
Time to the mark: 59 min
No. 367006 (worked solution)
7Course to steer: 262 °T
Speed over the ground: 6.6 kn
Time to the mark: 38 min
No. 367007 (worked solution)
8Course to steer: 271 °T
Speed over the ground: 8.0 kn
Time to the mark: 24 min
No. 367008 (worked solution)