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Worksheet 325 · Skill 6

Course to steer

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  1. You are at 099°T, 1.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 10.9 kn. The current sets 000°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 046°T, 2.2 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.9 kn. The current sets 276°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  

  3. You are at 036°T, 1.6 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.1 kn. The current sets 154°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  

  4. You are at 135°T, 1.7 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.5 kn. The current sets 224°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 062°T, 3.5 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.0 kn. The current sets 195°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  

  6. You are at 276°T, 0.8 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.0 kn. The current sets 173°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  

  7. You are at 044°T, 2.4 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 6.4 kn. The current sets 146°T at 0.8 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  

  8. You are at 010°T, 1.9 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.8 kn. The current sets 221°T at 1.2 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  

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: 123 °T
Speed over the ground: 9.8 kn
Time to the mark: 20 min
No. 325001 (worked solution)
2Course to steer: 031 °T
Speed over the ground: 5.4 kn
Time to the mark: 26 min
No. 325002 (worked solution)
3Course to steer: 136 °T
Speed over the ground: 11.5 kn
Time to the mark: 22 min
No. 325003 (worked solution)
4Course to steer: 082 °T
Speed over the ground: 5.3 kn
Time to the mark: 35 min
No. 325004 (worked solution)
5Course to steer: 141 °T
Speed over the ground: 6.8 kn
Time to the mark: 29 min
No. 325005 (worked solution)
6Course to steer: 032 °T
Speed over the ground: 6.2 kn
Time to the mark: 46 min
No. 325006 (worked solution)
7Course to steer: 053 °T
Speed over the ground: 6.4 kn
Time to the mark: 22 min
No. 325007 (worked solution)
8Course to steer: 254 °T
Speed over the ground: 8.8 kn
Time to the mark: 37 min
No. 325008 (worked solution)