Worksheet 428 · Skill 6
Course to steer
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You are at 287°T, 2.0 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.5 kn. The current sets 308°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 188°T, 1.7 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.4 kn. The current sets 155°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 259°T, 2.8 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.4 kn. The current sets 328°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 261°T, 1.7 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.3 kn. The current sets 001°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 018°T, 2.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.6 kn. The current sets 009°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 034°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.5 kn. The current sets 041°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 018°T, 2.3 nm from Mill stack, bound for Green can "3". Your speed through the water is 7.4 kn. The current sets 089°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 043°T, 2.7 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.2 kn. The current sets 047°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 160 °T Speed over the ground: 4.7 kn Time to the mark: 28 min | No. 428001 (worked solution) |
| 2 | Course to steer: 273 °T Speed over the ground: 6.6 kn Time to the mark: 26 min | No. 428002 (worked solution) |
| 3 | Course to steer: 262 °T Speed over the ground: 12.1 kn Time to the mark: 13 min | No. 428003 (worked solution) |
| 4 | Course to steer: 199 °T Speed over the ground: 3.3 kn Time to the mark: 48 min | No. 428004 (worked solution) |
| 5 | Course to steer: 151 °T Speed over the ground: 9.2 kn Time to the mark: 33 min | No. 428005 (worked solution) |
| 6 | Course to steer: 249 °T Speed over the ground: 8.4 kn Time to the mark: 47 min | No. 428006 (worked solution) |
| 7 | Course to steer: 327 °T Speed over the ground: 6.5 kn Time to the mark: 23 min | No. 428007 (worked solution) |
| 8 | Course to steer: 132 °T Speed over the ground: 5.3 kn Time to the mark: 51 min | No. 428008 (worked solution) |