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Worksheet 117 · 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 087°T, 2.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.3 kn. The current sets 117°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  

  2. You are at 138°T, 1.7 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.6 kn. The current sets 234°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  

  3. You are at 223°T, 2.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.0 kn. The current sets 242°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  

  4. You are at 143°T, 1.1 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.9 kn. The current sets 151°T at 2.2 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  

  5. You are at 021°T, 3.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.4 kn. The current sets 243°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  

  6. You are at 339°T, 2.6 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 11.0 kn. The current sets 147°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  

  7. You are at 026°T, 2.5 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 6.8 kn. The current sets 086°T at 0.6 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  

  8. You are at 052°T, 1.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.1 kn. The current sets 299°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  

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: 354 °T
Speed over the ground: 6.0 kn
Time to the mark: 37 min
No. 117001 (worked solution)
2Course to steer: 280 °T
Speed over the ground: 7.1 kn
Time to the mark: 55 min
No. 117002 (worked solution)
3Course to steer: 311 °T
Speed over the ground: 5.8 kn
Time to the mark: 38 min
No. 117003 (worked solution)
4Course to steer: 083 °T
Speed over the ground: 8.0 kn
Time to the mark: 28 min
No. 117004 (worked solution)
5Course to steer: 124 °T
Speed over the ground: 7.0 kn
Time to the mark: 50 min
No. 117005 (worked solution)
6Course to steer: 017 °T
Speed over the ground: 10.4 kn
Time to the mark: 27 min
No. 117006 (worked solution)
7Course to steer: 351 °T
Speed over the ground: 6.8 kn
Time to the mark: 40 min
No. 117007 (worked solution)
8Course to steer: 032 °T
Speed over the ground: 7.2 kn
Time to the mark: 25 min
No. 117008 (worked solution)