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Worksheet 615 · 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 067°T, 1.8 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 8.2 kn. The current sets 114°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  

  2. You are at 312°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.9 kn. The current sets 193°T at 0.5 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  

  3. You are at 246°T, 1.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.9 kn. The current sets 259°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  

  4. You are at 310°T, 2.6 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.0 kn. The current sets 268°T at 1.8 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  

  5. You are at 279°T, 1.2 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 10.1 kn. The current sets 202°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  

  6. You are at 308°T, 1.6 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 7.6 kn. The current sets 146°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  

  7. You are at 310°T, 3.7 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.5 kn. The current sets 122°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  

  8. You are at 076°T, 1.8 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 9.5 kn. The current sets 034°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: 035 °T
Speed over the ground: 8.5 kn
Time to the mark: 21 min
No. 615001 (worked solution)
2Course to steer: 275 °T
Speed over the ground: 7.0 kn
Time to the mark: 22 min
No. 615002 (worked solution)
3Course to steer: 214 °T
Speed over the ground: 9.4 kn
Time to the mark: 22 min
No. 615003 (worked solution)
4Course to steer: 190 °T
Speed over the ground: 11.5 kn
Time to the mark: 26 min
No. 615004 (worked solution)
5Course to steer: 296 °T
Speed over the ground: 10.1 kn
Time to the mark: 14 min
No. 615005 (worked solution)
6Course to steer: 005 °T
Speed over the ground: 6.0 kn
Time to the mark: 62 min
No. 615006 (worked solution)
7Course to steer: 170 °T
Speed over the ground: 6.1 kn
Time to the mark: 41 min
No. 615007 (worked solution)
8Course to steer: 264 °T
Speed over the ground: 8.3 kn
Time to the mark: 38 min
No. 615008 (worked solution)