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 13 · 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 275°T, 3.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.1 kn. The current sets 125°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 062°T, 2.2 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.6 kn. The current sets 124°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  

  3. You are at 203°T, 2.2 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.7 kn. The current sets 046°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  

  4. You are at 000°T, 1.9 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.4 kn. The current sets 013°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 307°T, 2.9 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.8 kn. The current sets 033°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 315°T, 2.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.5 kn. The current sets 139°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  

  7. You are at 053°T, 1.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 11.0 kn. The current sets 237°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 322°T, 1.1 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.6 kn. The current sets 134°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  

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: 177 °T
Speed over the ground: 6.8 kn
Time to the mark: 25 min
No. 13001 (worked solution)
2Course to steer: 001 °T
Speed over the ground: 7.2 kn
Time to the mark: 23 min
No. 13002 (worked solution)
3Course to steer: 265 °T
Speed over the ground: 4.1 kn
Time to the mark: 70 min
No. 13003 (worked solution)
4Course to steer: 212 °T
Speed over the ground: 7.8 kn
Time to the mark: 47 min
No. 13004 (worked solution)
5Course to steer: 184 °T
Speed over the ground: 4.9 kn
Time to the mark: 42 min
No. 13005 (worked solution)
6Course to steer: 183 °T
Speed over the ground: 7.0 kn
Time to the mark: 29 min
No. 13006 (worked solution)
7Course to steer: 127 °T
Speed over the ground: 10.5 kn
Time to the mark: 22 min
No. 13007 (worked solution)
8Course to steer: 269 °T
Speed over the ground: 6.4 kn
Time to the mark: 39 min
No. 13008 (worked solution)