Worksheet 31 · Skill 6
Course to steer
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You are at 051°T, 1.9 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.2 kn. The current sets 001°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 052°T, 2.2 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.1 kn. The current sets 051°T at 1.1 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 083°T, 2.2 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 7.2 kn. The current sets 300°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 049°T, 3.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 10.5 kn. The current sets 199°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 237°T, 2.5 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.5 kn. The current sets 245°T at 1.4 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 071°T, 2.9 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.8 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 342°T, 1.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.1 kn. The current sets 277°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 001°T, 1.7 nm from Mill stack, bound for Green can "1". Your speed through the water is 5.3 kn. The current sets 197°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 245 °T Speed over the ground: 7.5 kn Time to the mark: 51 min | No. 31001 (worked solution) |
| 2 | Course to steer: 144 °T Speed over the ground: 9.1 kn Time to the mark: 25 min | No. 31002 (worked solution) |
| 3 | Course to steer: 047 °T Speed over the ground: 6.9 kn Time to the mark: 26 min | No. 31003 (worked solution) |
| 4 | Course to steer: 265 °T Speed over the ground: 11.3 kn Time to the mark: 34 min | No. 31004 (worked solution) |
| 5 | Course to steer: 341 °T Speed over the ground: 6.5 kn Time to the mark: 25 min | No. 31005 (worked solution) |
| 6 | Course to steer: 156 °T Speed over the ground: 7.5 kn Time to the mark: 25 min | No. 31006 (worked solution) |
| 7 | Course to steer: 051 °T Speed over the ground: 5.6 kn Time to the mark: 39 min | No. 31007 (worked solution) |
| 8 | Course to steer: 328 °T Speed over the ground: 4.3 kn Time to the mark: 32 min | No. 31008 (worked solution) |