Worksheet 51 · Skill 6
Course to steer
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You are at 282°T, 1.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.2 kn. The current sets 015°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 025°T, 2.7 nm from Mill stack, bound for Red nun "2". Your speed through the water is 7.7 kn. The current sets 105°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 043°T, 4.2 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.9 kn. The current sets 102°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 274°T, 3.0 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 11.2 kn. The current sets 289°T at 2.1 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 309°T, 1.9 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.9 kn. The current sets 298°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 077°T, 2.6 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.5 kn. The current sets 239°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 065°T, 3.2 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 7.4 kn. The current sets 246°T at 2.1 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 046°T, 2.4 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.4 kn. The current sets 157°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: 053 °T Speed over the ground: 8.5 kn Time to the mark: 36 min | No. 51001 (worked solution) |
| 2 | Course to steer: 294 °T Speed over the ground: 5.4 kn Time to the mark: 29 min | No. 51002 (worked solution) |
| 3 | Course to steer: 174 °T Speed over the ground: 8.6 kn Time to the mark: 33 min | No. 51003 (worked solution) |
| 4 | Course to steer: 138 °T Speed over the ground: 9.4 kn Time to the mark: 14 min | No. 51004 (worked solution) |
| 5 | Course to steer: 173 °T Speed over the ground: 6.2 kn Time to the mark: 27 min | No. 51005 (worked solution) |
| 6 | Course to steer: 132 °T Speed over the ground: 7.3 kn Time to the mark: 22 min | No. 51006 (worked solution) |
| 7 | Course to steer: 272 °T Speed over the ground: 9.3 kn Time to the mark: 41 min | No. 51007 (worked solution) |
| 8 | Course to steer: 275 °T Speed over the ground: 5.9 kn Time to the mark: 54 min | No. 51008 (worked solution) |