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Worksheet 488 · 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 198°T, 1.2 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 7.1 kn. The current sets 354°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  

  2. You are at 016°T, 2.7 nm from Mill stack, bound for Green can "1". Your speed through the water is 9.5 kn. The current sets 080°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 110°T, 2.1 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.1 kn. The current sets 074°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  

  4. You are at 216°T, 2.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 7.5 kn. The current sets 261°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  

  5. You are at 075°T, 2.4 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.9 kn. The current sets 114°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  

  6. You are at 065°T, 2.1 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 6.1 kn. The current sets 126°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  

  7. You are at 333°T, 2.6 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.8 kn. The current sets 184°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 011°T, 3.0 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 10.2 kn. The current sets 331°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  

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: 292 °T
Speed over the ground: 8.0 kn
Time to the mark: 28 min
No. 488001 (worked solution)
2Course to steer: 277 °T
Speed over the ground: 7.5 kn
Time to the mark: 21 min
No. 488002 (worked solution)
3Course to steer: 352 °T
Speed over the ground: 6.4 kn
Time to the mark: 43 min
No. 488003 (worked solution)
4Course to steer: 291 °T
Speed over the ground: 8.5 kn
Time to the mark: 30 min
No. 488004 (worked solution)
5Course to steer: 275 °T
Speed over the ground: 4.7 kn
Time to the mark: 91 min
No. 488005 (worked solution)
6Course to steer: 029 °T
Speed over the ground: 6.1 kn
Time to the mark: 27 min
No. 488006 (worked solution)
7Course to steer: 092 °T
Speed over the ground: 6.8 kn
Time to the mark: 46 min
No. 488007 (worked solution)
8Course to steer: 054 °T
Speed over the ground: 10.4 kn
Time to the mark: 40 min
No. 488008 (worked solution)