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Worksheet 829 · Skill 6

Course to steer

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  1. You are at 014°T, 2.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 185°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  

  2. You are at 156°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 7.2 kn. The current sets 214°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 030°T, 2.0 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.8 kn. The current sets 340°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  

  4. You are at 305°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.5 kn. The current sets 294°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 242°T, 1.1 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.1 kn. The current sets 189°T at 0.9 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 157°T, 0.8 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 7.5 kn. The current sets 252°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  

  7. You are at 162°T, 1.6 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 10.8 kn. The current sets 279°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  

  8. You are at 045°T, 1.6 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 8.0 kn. The current sets 212°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  

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: 136 °T
Speed over the ground: 13.0 kn
Time to the mark: 25 min
No. 829001 (worked solution)
2Course to steer: 307 °T
Speed over the ground: 7.2 kn
Time to the mark: 39 min
No. 829002 (worked solution)
3Course to steer: 249 °T
Speed over the ground: 7.8 kn
Time to the mark: 46 min
No. 829003 (worked solution)
4Course to steer: 242 °T
Speed over the ground: 9.6 kn
Time to the mark: 27 min
No. 829004 (worked solution)
5Course to steer: 307 °T
Speed over the ground: 5.7 kn
Time to the mark: 30 min
No. 829005 (worked solution)
6Course to steer: 297 °T
Speed over the ground: 8.0 kn
Time to the mark: 31 min
No. 829006 (worked solution)
7Course to steer: 030 °T
Speed over the ground: 10.2 kn
Time to the mark: 33 min
No. 829007 (worked solution)
8Course to steer: 305 °T
Speed over the ground: 8.1 kn
Time to the mark: 49 min
No. 829008 (worked solution)