Worksheet 418 · Skill 6
Course to steer
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You are at 109°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.6 kn. The current sets 009°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 049°T, 3.1 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.9 kn. The current sets 196°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 099°T, 2.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.6 kn. The current sets 159°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 003°T, 1.7 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 8.5 kn. The current sets 212°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, 2.2 nm from Mill stack, bound for Red nun "2". Your speed through the water is 5.7 kn. The current sets 230°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 055°T, 2.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.8 kn. The current sets 353°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 211°T, 1.9 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.0 kn. The current sets 356°T at 1.9 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 285°T, 0.9 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.2 kn. The current sets 188°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 260 °T Speed over the ground: 5.4 kn Time to the mark: 76 min | No. 418001 (worked solution) |
| 2 | Course to steer: 116 °T Speed over the ground: 9.4 kn Time to the mark: 26 min | No. 418002 (worked solution) |
| 3 | Course to steer: 134 °T Speed over the ground: 7.5 kn Time to the mark: 18 min | No. 418003 (worked solution) |
| 4 | Course to steer: 286 °T Speed over the ground: 9.1 kn Time to the mark: 46 min | No. 418004 (worked solution) |
| 5 | Course to steer: 317 °T Speed over the ground: 5.8 kn Time to the mark: 34 min | No. 418005 (worked solution) |
| 6 | Course to steer: 143 °T Speed over the ground: 8.6 kn Time to the mark: 25 min | No. 418006 (worked solution) |
| 7 | Course to steer: 226 °T Speed over the ground: 4.0 kn Time to the mark: 33 min | No. 418007 (worked solution) |
| 8 | Course to steer: 295 °T Speed over the ground: 6.0 kn Time to the mark: 27 min | No. 418008 (worked solution) |