Worksheet 261 · Skill 6
Course to steer
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You are at 328°T, 1.9 nm from Heron Point Light, bound for Green can "1". Your speed through the water is 10.0 kn. The current sets 142°T at 1.0 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 128°T, 1.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.3 kn. The current sets 305°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 093°T, 3.3 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.6 kn. The current sets 177°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 232°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 7.5 kn. The current sets 277°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 300°T, 4.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 12.0 kn. The current sets 274°T at 1.0 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 065°T, 3.2 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 8.5 kn. The current sets 218°T at 0.5 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 049°T, 3.6 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.7 kn. The current sets 203°T at 0.6 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 044°T, 3.0 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.4 kn. The current sets 279°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 090 °T Speed over the ground: 10.6 kn Time to the mark: 16 min | No. 261001 (worked solution) |
| 2 | Course to steer: 270 °T Speed over the ground: 11.4 kn Time to the mark: 31 min | No. 261002 (worked solution) |
| 3 | Course to steer: 086 °T Speed over the ground: 9.8 kn Time to the mark: 14 min | No. 261003 (worked solution) |
| 4 | Course to steer: 320 °T Speed over the ground: 9.4 kn Time to the mark: 19 min | No. 261004 (worked solution) |
| 5 | Course to steer: 172 °T Speed over the ground: 11.8 kn Time to the mark: 27 min | No. 261005 (worked solution) |
| 6 | Course to steer: 150 °T Speed over the ground: 8.7 kn Time to the mark: 21 min | No. 261006 (worked solution) |
| 7 | Course to steer: 129 °T Speed over the ground: 5.9 kn Time to the mark: 41 min | No. 261007 (worked solution) |
| 8 | Course to steer: 253 °T Speed over the ground: 7.7 kn Time to the mark: 45 min | No. 261008 (worked solution) |