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Worksheet 850 · 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 160°T, 1.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.7 kn. The current sets 017°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  

  2. You are at 045°T, 1.2 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 5.3 kn. The current sets 276°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  

  3. You are at 139°T, 1.5 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.5 kn. The current sets 163°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 020°T, 2.3 nm from Mill stack, bound for Green can "3". Your speed through the water is 8.2 kn. The current sets 114°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  

  5. You are at 303°T, 1.8 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 7.5 kn. The current sets 081°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  

  6. You are at 055°T, 2.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.4 kn. The current sets 228°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  

  7. You are at 329°T, 1.7 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 6.6 kn. The current sets 277°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  

  8. You are at 304°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.7 kn. The current sets 271°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: 248 °T
Speed over the ground: 10.1 kn
Time to the mark: 22 min
No. 850001 (worked solution)
2Course to steer: 026 °T
Speed over the ground: 5.0 kn
Time to the mark: 71 min
No. 850002 (worked solution)
3Course to steer: 039 °T
Speed over the ground: 7.5 kn
Time to the mark: 31 min
No. 850003 (worked solution)
4Course to steer: 333 °T
Speed over the ground: 6.7 kn
Time to the mark: 23 min
No. 850004 (worked solution)
5Course to steer: 010 °T
Speed over the ground: 8.3 kn
Time to the mark: 46 min
No. 850005 (worked solution)
6Course to steer: 008 °T
Speed over the ground: 6.8 kn
Time to the mark: 21 min
No. 850006 (worked solution)
7Course to steer: 085 °T
Speed over the ground: 4.8 kn
Time to the mark: 42 min
No. 850007 (worked solution)
8Course to steer: 250 °T
Speed over the ground: 13.7 kn
Time to the mark: 20 min
No. 850008 (worked solution)