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 461 · 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 052°T, 1.3 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 9.8 kn. The current sets 070°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, 2.2 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 8.9 kn. The current sets 352°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 016°T, 3.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.9 kn. The current sets 221°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 029°T, 2.3 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.3 kn. The current sets 090°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  

  5. You are at 101°T, 2.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.6 kn. The current sets 144°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  

  6. You are at 078°T, 1.9 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.5 kn. The current sets 176°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  

  7. You are at 002°T, 2.2 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 9.6 kn. The current sets 024°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  

  8. You are at 250°T, 1.8 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 11.3 kn. The current sets 185°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  

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: 352 °T
Speed over the ground: 10.1 kn
Time to the mark: 36 min
No. 461001 (worked solution)
2Course to steer: 025 °T
Speed over the ground: 10.7 kn
Time to the mark: 13 min
No. 461002 (worked solution)
3Course to steer: 142 °T
Speed over the ground: 10.4 kn
Time to the mark: 34 min
No. 461003 (worked solution)
4Course to steer: 123 °T
Speed over the ground: 11.3 kn
Time to the mark: 27 min
No. 461004 (worked solution)
5Course to steer: 263 °T
Speed over the ground: 5.0 kn
Time to the mark: 75 min
No. 461005 (worked solution)
6Course to steer: 284 °T
Speed over the ground: 11.1 kn
Time to the mark: 29 min
No. 461006 (worked solution)
7Course to steer: 099 °T
Speed over the ground: 9.8 kn
Time to the mark: 14 min
No. 461007 (worked solution)
8Course to steer: 221 °T
Speed over the ground: 13.3 kn
Time to the mark: 10 min
No. 461008 (worked solution)