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Worksheet 211 · Skill 6

Course to steer

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  1. You are at 268°T, 2.1 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.1 kn. The current sets 047°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  

  2. You are at 000°T, 1.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.4 kn. The current sets 071°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  

  3. You are at 032°T, 2.9 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 9.5 kn. The current sets 041°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  

  4. You are at 124°T, 1.1 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.2 kn. The current sets 155°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 052°T, 2.7 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.9 kn. The current sets 292°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  

  6. You are at 082°T, 2.5 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.1 kn. The current sets 053°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  

  7. You are at 277°T, 1.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.3 kn. The current sets 093°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 078°T, 3.0 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.1 kn. The current sets 001°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  

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: 209 °T
Speed over the ground: 4.1 kn
Time to the mark: 37 min
No. 211001 (worked solution)
2Course to steer: 124 °T
Speed over the ground: 7.7 kn
Time to the mark: 47 min
No. 211002 (worked solution)
3Course to steer: 129 °T
Speed over the ground: 9.9 kn
Time to the mark: 17 min
No. 211003 (worked solution)
4Course to steer: 078 °T
Speed over the ground: 11.9 kn
Time to the mark: 24 min
No. 211004 (worked solution)
5Course to steer: 010 °T
Speed over the ground: 6.1 kn
Time to the mark: 21 min
No. 211005 (worked solution)
6Course to steer: 263 °T
Speed over the ground: 4.6 kn
Time to the mark: 79 min
No. 211006 (worked solution)
7Course to steer: 035 °T
Speed over the ground: 7.1 kn
Time to the mark: 43 min
No. 211007 (worked solution)
8Course to steer: 157 °T
Speed over the ground: 5.1 kn
Time to the mark: 29 min
No. 211008 (worked solution)