Worksheet 401 · Skill 6
Course to steer
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You are at 261°T, 2.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.1 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 300°T, 2.1 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.9 kn. The current sets 147°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 236°T, 2.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.7 kn. The current sets 329°T at 0.8 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 358°T, 1.4 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.0 kn. The current sets 212°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 024°T, 3.6 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.7 kn. The current sets 083°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 341°T, 1.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.9 kn. The current sets 277°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 040°T, 2.6 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 6.0 kn. The current sets 205°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 312°T, 1.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.3 kn. The current sets 137°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 058 °T Speed over the ground: 6.8 kn Time to the mark: 56 min | No. 401001 (worked solution) |
| 2 | Course to steer: 208 °T Speed over the ground: 10.0 kn Time to the mark: 23 min | No. 401002 (worked solution) |
| 3 | Course to steer: 219 °T Speed over the ground: 9.5 kn Time to the mark: 17 min | No. 401003 (worked solution) |
| 4 | Course to steer: 066 °T Speed over the ground: 3.2 kn Time to the mark: 75 min | No. 401004 (worked solution) |
| 5 | Course to steer: 140 °T Speed over the ground: 12.8 kn Time to the mark: 26 min | No. 401005 (worked solution) |
| 6 | Course to steer: 062 °T Speed over the ground: 4.6 kn Time to the mark: 47 min | No. 401006 (worked solution) |
| 7 | Course to steer: 051 °T Speed over the ground: 4.0 kn Time to the mark: 34 min | No. 401007 (worked solution) |
| 8 | Course to steer: 038 °T Speed over the ground: 7.2 kn Time to the mark: 36 min | No. 401008 (worked solution) |