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Worksheet 621 · 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 068°T, 2.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.7 kn. The current sets 155°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  

  2. You are at 008°T, 1.9 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.2 kn. The current sets 217°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  

  3. You are at 280°T, 3.1 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 11.5 kn. The current sets 046°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  

  4. You are at 108°T, 1.6 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.1 kn. The current sets 344°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  

  5. You are at 036°T, 2.2 nm from Mill stack, bound for Red nun "2". Your speed through the water is 10.0 kn. The current sets 142°T at 2.3 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  

  6. You are at 306°T, 2.4 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.8 kn. The current sets 071°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 006°T, 2.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.7 kn. The current sets 078°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  

  8. You are at 031°T, 2.1 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 11.9 kn. The current sets 088°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: 070 °T
Speed over the ground: 6.8 kn
Time to the mark: 19 min
No. 621001 (worked solution)
2Course to steer: 263 °T
Speed over the ground: 6.0 kn
Time to the mark: 39 min
No. 621002 (worked solution)
3Course to steer: 185 °T
Speed over the ground: 10.3 kn
Time to the mark: 18 min
No. 621003 (worked solution)
4Course to steer: 063 °T
Speed over the ground: 6.4 kn
Time to the mark: 29 min
No. 621004 (worked solution)
5Course to steer: 311 °T
Speed over the ground: 7.8 kn
Time to the mark: 24 min
No. 621005 (worked solution)
6Course to steer: 204 °T
Speed over the ground: 5.1 kn
Time to the mark: 48 min
No. 621006 (worked solution)
7Course to steer: 147 °T
Speed over the ground: 11.3 kn
Time to the mark: 29 min
No. 621007 (worked solution)
8Course to steer: 351 °T
Speed over the ground: 11.8 kn
Time to the mark: 25 min
No. 621008 (worked solution)