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Worksheet 520 · Skill 6

Course to steer

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Plot Pass worksheet. Plot Pass $1.95/month or $19.50/year · Free during preview. Plotroom · cedarpointmarina.net · invented chart, not for navigation.

  1. You are at 091°T, 2.1 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.4 kn. The current sets 343°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  

  2. You are at 309°T, 2.9 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 7.2 kn. The current sets 231°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  

  3. You are at 256°T, 2.6 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 8.3 kn. The current sets 268°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  

  4. You are at 125°T, 1.7 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.1 kn. The current sets 098°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 071°T, 2.1 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.4 kn. The current sets 231°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 082°T, 1.4 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.8 kn. The current sets 118°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  

  7. You are at 083°T, 2.4 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.8 kn. The current sets 295°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  

  8. You are at 186°T, 1.9 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.0 kn. The current sets 007°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  

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: 146 °T
Speed over the ground: 8.0 kn
Time to the mark: 19 min
No. 520001 (worked solution)
2Course to steer: 156 °T
Speed over the ground: 8.0 kn
Time to the mark: 26 min
No. 520002 (worked solution)
3Course to steer: 054 °T
Speed over the ground: 7.1 kn
Time to the mark: 55 min
No. 520003 (worked solution)
4Course to steer: 117 °T
Speed over the ground: 9.7 kn
Time to the mark: 16 min
No. 520004 (worked solution)
5Course to steer: 286 °T
Speed over the ground: 6.7 kn
Time to the mark: 49 min
No. 520005 (worked solution)
6Course to steer: 094 °T
Speed over the ground: 8.7 kn
Time to the mark: 30 min
No. 520006 (worked solution)
7Course to steer: 273 °T
Speed over the ground: 7.8 kn
Time to the mark: 45 min
No. 520007 (worked solution)
8Course to steer: 233 °T
Speed over the ground: 4.8 kn
Time to the mark: 45 min
No. 520008 (worked solution)