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 613 · 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 200°T, 2.3 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.3 kn. The current sets 271°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  

  2. You are at 341°T, 1.9 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 8.8 kn. The current sets 323°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  

  3. You are at 254°T, 1.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.6 kn. The current sets 147°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  

  4. You are at 211°T, 2.1 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.9 kn. The current sets 040°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 003°T, 2.1 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.3 kn. The current sets 055°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  

  6. You are at 132°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 12.0 kn. The current sets 023°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  

  7. You are at 283°T, 3.5 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 11.2 kn. The current sets 168°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  

  8. You are at 074°T, 1.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.4 kn. The current sets 274°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  

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: 248 °T
Speed over the ground: 6.3 kn
Time to the mark: 28 min
No. 613001 (worked solution)
2Course to steer: 088 °T
Speed over the ground: 7.8 kn
Time to the mark: 34 min
No. 613002 (worked solution)
3Course to steer: 227 °T
Speed over the ground: 11.1 kn
Time to the mark: 14 min
No. 613003 (worked solution)
4Course to steer: 267 °T
Speed over the ground: 4.7 kn
Time to the mark: 57 min
No. 613004 (worked solution)
5Course to steer: 145 °T
Speed over the ground: 7.6 kn
Time to the mark: 43 min
No. 613005 (worked solution)
6Course to steer: 286 °T
Speed over the ground: 11.9 kn
Time to the mark: 24 min
No. 613006 (worked solution)
7Course to steer: 079 °T
Speed over the ground: 11.3 kn
Time to the mark: 39 min
No. 613007 (worked solution)
8Course to steer: 128 °T
Speed over the ground: 7.1 kn
Time to the mark: 28 min
No. 613008 (worked solution)