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 780 · 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 024°T, 2.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.2 kn. The current sets 222°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  

  2. You are at 045°T, 4.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.2 kn. The current sets 275°T at 1.4 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 208°T, 1.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.6 kn. The current sets 148°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  

  4. You are at 068°T, 3.1 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 7.5 kn. The current sets 316°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  

  5. You are at 301°T, 3.3 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.5 kn. The current sets 153°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 021°T, 2.5 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 11.6 kn. The current sets 153°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  

  7. You are at 021°T, 0.8 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 8.6 kn. The current sets 113°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  

  8. You are at 083°T, 2.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.5 kn. The current sets 296°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  

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: 143 °T
Speed over the ground: 9.4 kn
Time to the mark: 32 min
No. 780001 (worked solution)
2Course to steer: 164 °T
Speed over the ground: 8.8 kn
Time to the mark: 35 min
No. 780002 (worked solution)
3Course to steer: 255 °T
Speed over the ground: 5.4 kn
Time to the mark: 41 min
No. 780003 (worked solution)
4Course to steer: 258 °T
Speed over the ground: 8.5 kn
Time to the mark: 45 min
No. 780004 (worked solution)
5Course to steer: 077 °T
Speed over the ground: 8.4 kn
Time to the mark: 49 min
No. 780005 (worked solution)
6Course to steer: 135 °T
Speed over the ground: 13.8 kn
Time to the mark: 22 min
No. 780006 (worked solution)
7Course to steer: 047 °T
Speed over the ground: 9.8 kn
Time to the mark: 15 min
No. 780007 (worked solution)
8Course to steer: 272 °T
Speed over the ground: 13.8 kn
Time to the mark: 25 min
No. 780008 (worked solution)