Worksheet 115 · Skill 6
Course to steer
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You are at 226°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.9 kn. The current sets 251°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 280°T, 1.8 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 9.6 kn. The current sets 340°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 052°T, 0.9 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 11.6 kn. The current sets 092°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 028°T, 2.2 nm from Mill stack, bound for Green can "1". Your speed through the water is 11.2 kn. The current sets 232°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 355°T, 1.7 nm from Mill stack, bound for Green can "3". Your speed through the water is 9.6 kn. The current sets 315°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 018°T, 3.7 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.4 kn. The current sets 264°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
You are at 031°T, 3.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.0 kn. The current sets 276°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 039°T, 2.8 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.5 kn. The current sets 164°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 327 °T Speed over the ground: 6.8 kn Time to the mark: 27 min | No. 115001 (worked solution) |
| 2 | Course to steer: 195 °T Speed over the ground: 8.1 kn Time to the mark: 23 min | No. 115002 (worked solution) |
| 3 | Course to steer: 045 °T Speed over the ground: 12.5 kn Time to the mark: 11 min | No. 115003 (worked solution) |
| 4 | Course to steer: 298 °T Speed over the ground: 11.7 kn Time to the mark: 16 min | No. 115004 (worked solution) |
| 5 | Course to steer: 010 °T Speed over the ground: 10.3 kn Time to the mark: 17 min | No. 115005 (worked solution) |
| 6 | Course to steer: 150 °T Speed over the ground: 7.1 kn Time to the mark: 51 min | No. 115006 (worked solution) |
| 7 | Course to steer: 129 °T Speed over the ground: 6.7 kn Time to the mark: 47 min | No. 115007 (worked solution) |
| 8 | Course to steer: 267 °T Speed over the ground: 11.2 kn Time to the mark: 29 min | No. 115008 (worked solution) |