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Worksheet 389 · 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 338°T, 1.7 nm from Heron Point Light, bound for Green can "1". Your speed through the water is 8.7 kn. The current sets 131°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  

  2. You are at 270°T, 3.4 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 9.9 kn. The current sets 220°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  

  3. You are at 126°T, 1.7 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.5 kn. The current sets 151°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  

  4. You are at 311°T, 1.3 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 11.6 kn. The current sets 095°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  

  5. You are at 233°T, 2.1 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.9 kn. The current sets 036°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  

  6. You are at 062°T, 3.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.1 kn. The current sets 193°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  

  7. You are at 199°T, 2.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 11.4 kn. The current sets 115°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  

  8. You are at 342°T, 1.2 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.3 kn. The current sets 326°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  

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: 085 °T
Speed over the ground: 10.4 kn
Time to the mark: 14 min
No. 389001 (worked solution)
2Course to steer: 167 °T
Speed over the ground: 10.5 kn
Time to the mark: 15 min
No. 389002 (worked solution)
3Course to steer: 288 °T
Speed over the ground: 8.2 kn
Time to the mark: 46 min
No. 389003 (worked solution)
4Course to steer: 203 °T
Speed over the ground: 11.3 kn
Time to the mark: 14 min
No. 389004 (worked solution)
5Course to steer: 288 °T
Speed over the ground: 9.7 kn
Time to the mark: 21 min
No. 389005 (worked solution)
6Course to steer: 148 °T
Speed over the ground: 8.4 kn
Time to the mark: 23 min
No. 389006 (worked solution)
7Course to steer: 044 °T
Speed over the ground: 12.4 kn
Time to the mark: 28 min
No. 389007 (worked solution)
8Course to steer: 232 °T
Speed over the ground: 6.5 kn
Time to the mark: 49 min
No. 389008 (worked solution)