Plotroom

PREVIEWFree during preview: checkout has not opened, so skills 5 to 8, worksheets and CSV cost nothing yet. Price when it opens: Plot Pass $1.95/month or $19.50/year.

Worksheet 581 · Skill 6

Course to steer

Next sheet

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, 3.0 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.0 kn. The current sets 212°T at 2.5 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 056°T, 3.9 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.0 kn. The current sets 206°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  

  3. You are at 001°T, 1.3 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 11.4 kn. The current sets 329°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  

  4. You are at 075°T, 1.8 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 11.3 kn. The current sets 059°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 320°T, 1.0 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.2 kn. The current sets 189°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  

  6. You are at 227°T, 1.0 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.4 kn. The current sets 073°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 098°T, 1.8 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 9.8 kn. The current sets 314°T at 1.1 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  

  8. You are at 260°T, 2.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.5 kn. The current sets 076°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  

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: 288 °T
Speed over the ground: 7.1 kn
Time to the mark: 53 min
No. 581001 (worked solution)
2Course to steer: 169 °T
Speed over the ground: 9.0 kn
Time to the mark: 28 min
No. 581002 (worked solution)
3Course to steer: 273 °T
Speed over the ground: 12.4 kn
Time to the mark: 33 min
No. 581003 (worked solution)
4Course to steer: 035 °T
Speed over the ground: 13.2 kn
Time to the mark: 14 min
No. 581004 (worked solution)
5Course to steer: 280 °T
Speed over the ground: 6.2 kn
Time to the mark: 28 min
No. 581005 (worked solution)
6Course to steer: 265 °T
Speed over the ground: 3.6 kn
Time to the mark: 79 min
No. 581006 (worked solution)
7Course to steer: 011 °T
Speed over the ground: 10.4 kn
Time to the mark: 23 min
No. 581007 (worked solution)
8Course to steer: 199 °T
Speed over the ground: 8.1 kn
Time to the mark: 16 min
No. 581008 (worked solution)