Worksheet 478 · Skill 6
Course to steer
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You are at 020°T, 1.6 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 11.1 kn. The current sets 147°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
You are at 151°T, 2.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.9 kn. The current sets 057°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
You are at 114°T, 1.7 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.1 kn. The current sets 327°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 031°T, 2.4 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.0 kn. The current sets 098°T at 2.3 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 317°T, 3.0 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.3 kn. The current sets 014°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 066°T, 3.0 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.3 kn. The current sets 159°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 246°T, 2.5 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.5 kn. The current sets 205°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 007°T, 1.5 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 8.7 kn. The current sets 150°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 123 °T Speed over the ground: 13.4 kn Time to the mark: 21 min | No. 478001 (worked solution) |
| 2 | Course to steer: 252 °T Speed over the ground: 4.2 kn Time to the mark: 70 min | No. 478002 (worked solution) |
| 3 | Course to steer: 239 °T Speed over the ground: 11.2 kn Time to the mark: 30 min | No. 478003 (worked solution) |
| 4 | Course to steer: 263 °T Speed over the ground: 2.8 kn Time to the mark: 135 min | No. 478004 (worked solution) |
| 5 | Course to steer: 107 °T Speed over the ground: 8.3 kn Time to the mark: 44 min | No. 478005 (worked solution) |
| 6 | Course to steer: 115 °T Speed over the ground: 9.4 kn Time to the mark: 21 min | No. 478006 (worked solution) |
| 7 | Course to steer: 288 °T Speed over the ground: 12.0 kn Time to the mark: 16 min | No. 478007 (worked solution) |
| 8 | Course to steer: 284 °T Speed over the ground: 7.9 kn Time to the mark: 53 min | No. 478008 (worked solution) |