Worksheet 165 · Skill 6
Course to steer
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You are at 079°T, 2.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.1 kn. The current sets 357°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 259°T, 1.6 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.7 kn. The current sets 230°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 351°T, 1.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.7 kn. The current sets 209°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 023°T, 2.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.1 kn. The current sets 009°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 039°T, 2.6 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 5.4 kn. The current sets 012°T at 0.7 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 285°T, 2.0 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.9 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 039°T, 1.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.9 kn. The current sets 153°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 202°T, 2.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.4 kn. The current sets 175°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 141 °T Speed over the ground: 7.8 kn Time to the mark: 21 min | No. 165001 (worked solution) |
| 2 | Course to steer: 213 °T Speed over the ground: 12.0 kn Time to the mark: 17 min | No. 165002 (worked solution) |
| 3 | Course to steer: 262 °T Speed over the ground: 10.9 kn Time to the mark: 26 min | No. 165003 (worked solution) |
| 4 | Course to steer: 239 °T Speed over the ground: 5.3 kn Time to the mark: 68 min | No. 165004 (worked solution) |
| 5 | Course to steer: 073 °T Speed over the ground: 5.8 kn Time to the mark: 23 min | No. 165005 (worked solution) |
| 6 | Course to steer: 256 °T Speed over the ground: 9.5 kn Time to the mark: 23 min | No. 165006 (worked solution) |
| 7 | Course to steer: 273 °T Speed over the ground: 9.0 kn Time to the mark: 38 min | No. 165007 (worked solution) |
| 8 | Course to steer: 259 °T Speed over the ground: 9.7 kn Time to the mark: 18 min | No. 165008 (worked solution) |