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Worksheet 647 · 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 085°T, 2.3 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.7 kn. The current sets 348°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  

  2. You are at 043°T, 2.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.8 kn. The current sets 186°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 006°T, 2.1 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 11.9 kn. The current sets 340°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 003°T, 2.9 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 5.3 kn. The current sets 078°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  

  5. You are at 016°T, 1.6 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 6.6 kn. The current sets 094°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  

  6. You are at 286°T, 3.7 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.5 kn. The current sets 214°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  

  7. You are at 064°T, 2.6 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 9.5 kn. The current sets 035°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  

  8. You are at 356°T, 1.5 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.8 kn. The current sets 051°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  

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: 113 °T
Speed over the ground: 6.0 kn
Time to the mark: 34 min
No. 647001 (worked solution)
2Course to steer: 118 °T
Speed over the ground: 12.5 kn
Time to the mark: 22 min
No. 647002 (worked solution)
3Course to steer: 134 °T
Speed over the ground: 10.6 kn
Time to the mark: 30 min
No. 647003 (worked solution)
4Course to steer: 039 °T
Speed over the ground: 7.3 kn
Time to the mark: 60 min
No. 647004 (worked solution)
5Course to steer: 073 °T
Speed over the ground: 8.0 kn
Time to the mark: 15 min
No. 647005 (worked solution)
6Course to steer: 139 °T
Speed over the ground: 8.8 kn
Time to the mark: 22 min
No. 647006 (worked solution)
7Course to steer: 351 °T
Speed over the ground: 10.8 kn
Time to the mark: 15 min
No. 647007 (worked solution)
8Course to steer: 102 °T
Speed over the ground: 6.8 kn
Time to the mark: 36 min
No. 647008 (worked solution)