Worksheet 619 · Skill 6
Course to steer
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You are at 023°T, 1.0 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.0 kn. The current sets 108°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 257°T, 2.8 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.0 kn. The current sets 183°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 024°T, 2.6 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 10.7 kn. The current sets 264°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 138°T, 1.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.0 kn. The current sets 242°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 301°T, 4.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.3 kn. The current sets 277°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 027°T, 2.7 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.2 kn. The current sets 211°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 325°T, 3.0 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 11.3 kn. The current sets 258°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
You are at 012°T, 0.9 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.1 kn. The current sets 313°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 267 °T Speed over the ground: 6.7 kn Time to the mark: 47 min | No. 619001 (worked solution) |
| 2 | Course to steer: 280 °T Speed over the ground: 10.9 kn Time to the mark: 15 min | No. 619002 (worked solution) |
| 3 | Course to steer: 132 °T Speed over the ground: 9.6 kn Time to the mark: 31 min | No. 619003 (worked solution) |
| 4 | Course to steer: 287 °T Speed over the ground: 9.4 kn Time to the mark: 36 min | No. 619004 (worked solution) |
| 5 | Course to steer: 171 °T Speed over the ground: 10.0 kn Time to the mark: 32 min | No. 619005 (worked solution) |
| 6 | Course to steer: 264 °T Speed over the ground: 6.8 kn Time to the mark: 57 min | No. 619006 (worked solution) |
| 7 | Course to steer: 170 °T Speed over the ground: 11.5 kn Time to the mark: 21 min | No. 619007 (worked solution) |
| 8 | Course to steer: 255 °T Speed over the ground: 8.6 kn Time to the mark: 35 min | No. 619008 (worked solution) |