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Worksheet 686 · 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 327°T, 2.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 10.1 kn. The current sets 165°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  

  2. You are at 266°T, 2.6 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.0 kn. The current sets 164°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  

  3. You are at 048°T, 2.7 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 10.1 kn. The current sets 063°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  

  4. You are at 081°T, 0.9 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.5 kn. The current sets 069°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  

  5. You are at 066°T, 3.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.5 kn. The current sets 245°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  

  6. You are at 233°T, 1.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.5 kn. The current sets 303°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 008°T, 2.5 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.9 kn. The current sets 006°T at 1.3 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  

  8. You are at 232°T, 2.5 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.8 kn. The current sets 197°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  

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: 190 °T
Speed over the ground: 11.8 kn
Time to the mark: 18 min
No. 686001 (worked solution)
2Course to steer: 202 °T
Speed over the ground: 8.6 kn
Time to the mark: 21 min
No. 686002 (worked solution)
3Course to steer: 148 °T
Speed over the ground: 10.2 kn
Time to the mark: 23 min
No. 686003 (worked solution)
4Course to steer: 146 °T
Speed over the ground: 7.5 kn
Time to the mark: 28 min
No. 686004 (worked solution)
5Course to steer: 151 °T
Speed over the ground: 7.5 kn
Time to the mark: 24 min
No. 686005 (worked solution)
6Course to steer: 214 °T
Speed over the ground: 8.8 kn
Time to the mark: 20 min
No. 686006 (worked solution)
7Course to steer: 120 °T
Speed over the ground: 5.5 kn
Time to the mark: 42 min
No. 686007 (worked solution)
8Course to steer: 301 °T
Speed over the ground: 8.5 kn
Time to the mark: 25 min
No. 686008 (worked solution)