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Worksheet 752 · Skill 6

Course to steer

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  1. You are at 253°T, 2.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.1 kn. The current sets 313°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  

  2. You are at 046°T, 2.7 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.6 kn. The current sets 060°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  

  3. You are at 294°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 005°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 143°T, 1.1 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 7.8 kn. The current sets 355°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 069°T, 1.6 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.4 kn. The current sets 255°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 008°T, 2.8 nm from Mill stack, bound for Green can "1". Your speed through the water is 10.8 kn. The current sets 354°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  

  7. You are at 029°T, 1.2 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 7.1 kn. The current sets 122°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  

  8. You are at 036°T, 2.4 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.8 kn. The current sets 187°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  

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: 274 °T
Speed over the ground: 6.8 kn
Time to the mark: 24 min
No. 752001 (worked solution)
2Course to steer: 251 °T
Speed over the ground: 6.0 kn
Time to the mark: 70 min
No. 752002 (worked solution)
3Course to steer: 248 °T
Speed over the ground: 10.8 kn
Time to the mark: 23 min
No. 752003 (worked solution)
4Course to steer: 259 °T
Speed over the ground: 7.8 kn
Time to the mark: 46 min
No. 752004 (worked solution)
5Course to steer: 116 °T
Speed over the ground: 3.9 kn
Time to the mark: 52 min
No. 752005 (worked solution)
6Course to steer: 266 °T
Speed over the ground: 11.1 kn
Time to the mark: 12 min
No. 752006 (worked solution)
7Course to steer: 350 °T
Speed over the ground: 6.1 kn
Time to the mark: 57 min
No. 752007 (worked solution)
8Course to steer: 114 °T
Speed over the ground: 11.2 kn
Time to the mark: 26 min
No. 752008 (worked solution)