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 142 · 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 274°T, 3.6 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.5 kn. The current sets 227°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 042°T, 1.8 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 117°T at 0.9 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  

  3. You are at 104°T, 1.7 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.9 kn. The current sets 267°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  

  4. You are at 032°T, 2.6 nm from Mill stack, bound for Green can "1". Your speed through the water is 10.3 kn. The current sets 023°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  

  5. You are at 032°T, 2.7 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 9.3 kn. The current sets 021°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  

  6. You are at 046°T, 4.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.2 kn. The current sets 123°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  

  7. You are at 314°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 7.0 kn. The current sets 195°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  

  8. You are at 140°T, 2.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 10.9 kn. The current sets 209°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  

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: 176 °T
Speed over the ground: 11.2 kn
Time to the mark: 18 min
No. 142001 (worked solution)
2Course to steer: 257 °T
Speed over the ground: 10.6 kn
Time to the mark: 39 min
No. 142002 (worked solution)
3Course to steer: 124 °T
Speed over the ground: 10.0 kn
Time to the mark: 15 min
No. 142003 (worked solution)
4Course to steer: 275 °T
Speed over the ground: 9.9 kn
Time to the mark: 20 min
No. 142004 (worked solution)
5Course to steer: 078 °T
Speed over the ground: 9.7 kn
Time to the mark: 15 min
No. 142005 (worked solution)
6Course to steer: 187 °T
Speed over the ground: 8.6 kn
Time to the mark: 35 min
No. 142006 (worked solution)
7Course to steer: 290 °T
Speed over the ground: 7.2 kn
Time to the mark: 21 min
No. 142007 (worked solution)
8Course to steer: 283 °T
Speed over the ground: 11.6 kn
Time to the mark: 17 min
No. 142008 (worked solution)