Worksheet 3 · Skill 6
Course to steer
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You are at 298°T, 3.9 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.0 kn. The current sets 270°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 044°T, 2.4 nm from Mill stack, bound for Red nun "2". Your speed through the water is 12.0 kn. The current sets 024°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 214°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.5 kn. The current sets 354°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 289°T, 1.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.0 kn. The current sets 211°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 293°T, 3.0 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 9.3 kn. The current sets 342°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 235°T, 1.4 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.2 kn. The current sets 338°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 300°T, 3.5 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.9 kn. The current sets 352°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 076°T, 2.9 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 8.6 kn. The current sets 116°T at 2.0 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: 130 °T Speed over the ground: 3.6 kn Time to the mark: 64 min | No. 3001 (worked solution) |
| 2 | Course to steer: 294 °T Speed over the ground: 12.2 kn Time to the mark: 17 min | No. 3002 (worked solution) |
| 3 | Course to steer: 304 °T Speed over the ground: 12.5 kn Time to the mark: 16 min | No. 3003 (worked solution) |
| 4 | Course to steer: 276 °T Speed over the ground: 8.3 kn Time to the mark: 24 min | No. 3004 (worked solution) |
| 5 | Course to steer: 180 °T Speed over the ground: 7.8 kn Time to the mark: 28 min | No. 3005 (worked solution) |
| 6 | Course to steer: 258 °T Speed over the ground: 6.7 kn Time to the mark: 38 min | No. 3006 (worked solution) |
| 7 | Course to steer: 102 °T Speed over the ground: 7.6 kn Time to the mark: 56 min | No. 3007 (worked solution) |
| 8 | Course to steer: 338 °T Speed over the ground: 7.2 kn Time to the mark: 26 min | No. 3008 (worked solution) |