Worksheet 542 · Skill 6
Course to steer
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You are at 056°T, 1.4 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.2 kn. The current sets 341°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 031°T, 3.8 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.6 kn. The current sets 268°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 108°T, 1.8 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.8 kn. The current sets 185°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 080°T, 2.8 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 8.7 kn. The current sets 216°T at 1.3 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 089°T, 3.1 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.9 kn. The current sets 206°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
You are at 003°T, 1.7 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 7.1 kn. The current sets 153°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 228°T, 1.6 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.3 kn. The current sets 083°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
You are at 270°T, 3.6 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.4 kn. The current sets 105°T at 1.0 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 094 °T Speed over the ground: 6.7 kn Time to the mark: 26 min | No. 542001 (worked solution) |
| 2 | Course to steer: 136 °T Speed over the ground: 4.6 kn Time to the mark: 68 min | No. 542002 (worked solution) |
| 3 | Course to steer: 281 °T Speed over the ground: 5.8 kn Time to the mark: 68 min | No. 542003 (worked solution) |
| 4 | Course to steer: 132 °T Speed over the ground: 8.9 kn Time to the mark: 16 min | No. 542004 (worked solution) |
| 5 | Course to steer: 158 °T Speed over the ground: 6.5 kn Time to the mark: 20 min | No. 542005 (worked solution) |
| 6 | Course to steer: 074 °T Speed over the ground: 7.4 kn Time to the mark: 19 min | No. 542006 (worked solution) |
| 7 | Course to steer: 235 °T Speed over the ground: 8.1 kn Time to the mark: 23 min | No. 542007 (worked solution) |
| 8 | Course to steer: 173 °T Speed over the ground: 8.8 kn Time to the mark: 17 min | No. 542008 (worked solution) |