Worksheet 57 · Skill 6
Course to steer
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You are at 257°T, 2.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.8 kn. The current sets 347°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 326°T, 2.7 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 9.6 kn. The current sets 300°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 318°T, 2.8 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 9.9 kn. The current sets 061°T at 1.2 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 055°T, 3.2 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 9.6 kn. The current sets 271°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 024°T, 2.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.9 kn. The current sets 088°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 028°T, 3.8 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.1 kn. The current sets 269°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 038°T, 2.6 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.3 kn. The current sets 060°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 220°T, 1.0 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.2 kn. The current sets 211°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 258 °T Speed over the ground: 7.0 kn Time to the mark: 22 min | No. 57001 (worked solution) |
| 2 | Course to steer: 171 °T Speed over the ground: 8.3 kn Time to the mark: 28 min | No. 57002 (worked solution) |
| 3 | Course to steer: 184 °T Speed over the ground: 9.3 kn Time to the mark: 24 min | No. 57003 (worked solution) |
| 4 | Course to steer: 353 °T Speed over the ground: 9.8 kn Time to the mark: 12 min | No. 57004 (worked solution) |
| 5 | Course to steer: 133 °T Speed over the ground: 8.2 kn Time to the mark: 40 min | No. 57005 (worked solution) |
| 6 | Course to steer: 156 °T Speed over the ground: 8.8 kn Time to the mark: 39 min | No. 57006 (worked solution) |
| 7 | Course to steer: 120 °T Speed over the ground: 9.8 kn Time to the mark: 15 min | No. 57007 (worked solution) |
| 8 | Course to steer: 286 °T Speed over the ground: 7.4 kn Time to the mark: 34 min | No. 57008 (worked solution) |