Worksheet 313 · Skill 6
Course to steer
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You are at 258°T, 2.6 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.5 kn. The current sets 186°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
You are at 251°T, 1.5 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.5 kn. The current sets 135°T at 1.5 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 318°T, 1.4 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 10.0 kn. The current sets 204°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 233°T, 0.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.5 kn. The current sets 137°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
You are at 338°T, 1.8 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 7.5 kn. The current sets 253°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 061°T, 2.9 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.8 kn. The current sets 320°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
You are at 185°T, 1.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.0 kn. The current sets 010°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 120°T, 1.5 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.9 kn. The current sets 240°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 278 °T Speed over the ground: 10.6 kn Time to the mark: 16 min | No. 313001 (worked solution) |
| 2 | Course to steer: 285 °T Speed over the ground: 6.2 kn Time to the mark: 33 min | No. 313002 (worked solution) |
| 3 | Course to steer: 294 °T Speed over the ground: 10.2 kn Time to the mark: 35 min | No. 313003 (worked solution) |
| 4 | Course to steer: 278 °T Speed over the ground: 9.0 kn Time to the mark: 31 min | No. 313004 (worked solution) |
| 5 | Course to steer: 080 °T Speed over the ground: 5.1 kn Time to the mark: 36 min | No. 313005 (worked solution) |
| 6 | Course to steer: 252 °T Speed over the ground: 8.3 kn Time to the mark: 54 min | No. 313006 (worked solution) |
| 7 | Course to steer: 239 °T Speed over the ground: 8.3 kn Time to the mark: 28 min | No. 313007 (worked solution) |
| 8 | Course to steer: 088 °T Speed over the ground: 4.1 kn Time to the mark: 45 min | No. 313008 (worked solution) |