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 21 · 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 050°T, 3.4 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.5 kn. The current sets 038°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  

  2. You are at 009°T, 1.8 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.0 kn. The current sets 207°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  

  3. You are at 060°T, 1.7 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.6 kn. The current sets 334°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  

  4. You are at 046°T, 1.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 12.0 kn. The current sets 195°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  

  5. You are at 049°T, 2.1 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.0 kn. The current sets 295°T at 0.6 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  

  6. You are at 058°T, 1.1 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.2 kn. The current sets 243°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 002°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 10.9 kn. The current sets 059°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  

  8. You are at 345°T, 1.8 nm from Mill stack, bound for Red nun "2". Your speed through the water is 5.9 kn. The current sets 132°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  

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: 137 °T
Speed over the ground: 10.4 kn
Time to the mark: 23 min
No. 21001 (worked solution)
2Course to steer: 113 °T
Speed over the ground: 6.1 kn
Time to the mark: 50 min
No. 21002 (worked solution)
3Course to steer: 258 °T
Speed over the ground: 7.2 kn
Time to the mark: 42 min
No. 21003 (worked solution)
4Course to steer: 120 °T
Speed over the ground: 12.4 kn
Time to the mark: 20 min
No. 21004 (worked solution)
5Course to steer: 145 °T
Speed over the ground: 5.5 kn
Time to the mark: 44 min
No. 21005 (worked solution)
6Course to steer: 274 °T
Speed over the ground: 7.5 kn
Time to the mark: 46 min
No. 21006 (worked solution)
7Course to steer: 256 °T
Speed over the ground: 8.9 kn
Time to the mark: 24 min
No. 21007 (worked solution)
8Course to steer: 332 °T
Speed over the ground: 4.3 kn
Time to the mark: 29 min
No. 21008 (worked solution)