Worksheet 545 · Skill 6
Course to steer
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You are at 347°T, 1.9 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.4 kn. The current sets 329°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
You are at 196°T, 0.9 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 7.5 kn. The current sets 065°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
You are at 235°T, 2.7 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.7 kn. The current sets 287°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
You are at 326°T, 3.0 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.7 kn. The current sets 113°T at 0.5 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
You are at 026°T, 2.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.7 kn. The current sets 131°T at 2.2 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
You are at 022°T, 2.1 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 9.4 kn. The current sets 309°T at 0.8 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
You are at 025°T, 1.1 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.4 kn. The current sets 039°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
You are at 024°T, 2.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.6 kn. The current sets 186°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
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 195 °T Speed over the ground: 5.3 kn Time to the mark: 58 min | No. 545001 (worked solution) |
| 2 | Course to steer: 295 °T Speed over the ground: 7.1 kn Time to the mark: 31 min | No. 545002 (worked solution) |
| 3 | Course to steer: 211 °T Speed over the ground: 6.1 kn Time to the mark: 20 min | No. 545003 (worked solution) |
| 4 | Course to steer: 199 °T Speed over the ground: 7.8 kn Time to the mark: 40 min | No. 545004 (worked solution) |
| 5 | Course to steer: 260 °T Speed over the ground: 7.5 kn Time to the mark: 56 min | No. 545005 (worked solution) |
| 6 | Course to steer: 252 °T Speed over the ground: 9.9 kn Time to the mark: 27 min | No. 545006 (worked solution) |
| 7 | Course to steer: 248 °T Speed over the ground: 9.4 kn Time to the mark: 39 min | No. 545007 (worked solution) |
| 8 | Course to steer: 117 °T Speed over the ground: 12.4 kn Time to the mark: 26 min | No. 545008 (worked solution) |