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Worksheet 480 · Skill 6

Course to steer

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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 348°T, 2.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.9 kn. The current sets 326°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 156°T, 3.1 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.0 kn. The current sets 329°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  

  3. You are at 148°T, 1.0 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.0 kn. The current sets 238°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  

  4. You are at 038°T, 3.5 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.7 kn. The current sets 278°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  

  5. You are at 241°T, 2.1 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.0 kn. The current sets 127°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  

  6. You are at 053°T, 2.9 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.5 kn. The current sets 199°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  

  7. You are at 270°T, 2.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.4 kn. The current sets 325°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  

  8. You are at 157°T, 1.2 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 7.0 kn. The current sets 066°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  

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: 107 °T
Speed over the ground: 5.1 kn
Time to the mark: 53 min
No. 480001 (worked solution)
2Course to steer: 265 °T
Speed over the ground: 11.0 kn
Time to the mark: 23 min
No. 480002 (worked solution)
3Course to steer: 288 °T
Speed over the ground: 7.0 kn
Time to the mark: 46 min
No. 480003 (worked solution)
4Course to steer: 242 °T
Speed over the ground: 12.8 kn
Time to the mark: 35 min
No. 480004 (worked solution)
5Course to steer: 021 °T
Speed over the ground: 4.8 kn
Time to the mark: 78 min
No. 480005 (worked solution)
6Course to steer: 269 °T
Speed over the ground: 12.2 kn
Time to the mark: 29 min
No. 480006 (worked solution)
7Course to steer: 253 °T
Speed over the ground: 9.8 kn
Time to the mark: 19 min
No. 480007 (worked solution)
8Course to steer: 267 °T
Speed over the ground: 5.1 kn
Time to the mark: 69 min
No. 480008 (worked solution)