Worksheet 148 · Skill 6
Course to steer
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You are at 205°T, 1.1 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.0 kn. The current sets 308°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 284°T, 3.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.8 kn. The current sets 175°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 249°T, 3.0 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.4 kn. The current sets 158°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 329°T, 2.1 nm from Mill stack, bound for Green can "3". Your speed through the water is 5.3 kn. The current sets 353°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
You are at 016°T, 2.9 nm from Mill stack, bound for Red nun "2". Your speed through the water is 9.0 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
You are at 062°T, 2.8 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.5 kn. The current sets 242°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 066°T, 1.9 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.3 kn. The current sets 308°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 285°T, 4.0 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.3 kn. The current sets 228°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: 279 °T Speed over the ground: 10.2 kn Time to the mark: 26 min | No. 148001 (worked solution) |
| 2 | Course to steer: 193 °T Speed over the ground: 8.6 kn Time to the mark: 27 min | No. 148002 (worked solution) |
| 3 | Course to steer: 209 °T Speed over the ground: 12.8 kn Time to the mark: 10 min | No. 148003 (worked solution) |
| 4 | Course to steer: 032 °T Speed over the ground: 6.7 kn Time to the mark: 27 min | No. 148004 (worked solution) |
| 5 | Course to steer: 305 °T Speed over the ground: 8.7 kn Time to the mark: 15 min | No. 148005 (worked solution) |
| 6 | Course to steer: 006 °T Speed over the ground: 5.8 kn Time to the mark: 26 min | No. 148006 (worked solution) |
| 7 | Course to steer: 259 °T Speed over the ground: 12.1 kn Time to the mark: 33 min | No. 148007 (worked solution) |
| 8 | Course to steer: 171 °T Speed over the ground: 10.0 kn Time to the mark: 25 min | No. 148008 (worked solution) |