Worksheet 609 · Skill 6
Course to steer
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You are at 013°T, 1.1 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 11.8 kn. The current sets 354°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 055°T, 2.8 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.5 kn. The current sets 125°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 324°T, 2.2 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.5 kn. The current sets 073°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 034°T, 1.4 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 8.1 kn. The current sets 344°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 121°T, 1.9 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.9 kn. The current sets 254°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 036°T, 3.1 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.5 kn. The current sets 055°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 017°T, 2.0 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 5.0 kn. The current sets 183°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, 1.5 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.1 kn. The current sets 299°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: 269 °T Speed over the ground: 12.3 kn Time to the mark: 35 min | No. 609001 (worked solution) |
| 2 | Course to steer: 355 °T Speed over the ground: 7.2 kn Time to the mark: 18 min | No. 609002 (worked solution) |
| 3 | Course to steer: 216 °T Speed over the ground: 5.8 kn Time to the mark: 48 min | No. 609003 (worked solution) |
| 4 | Course to steer: 041 °T Speed over the ground: 9.7 kn Time to the mark: 19 min | No. 609004 (worked solution) |
| 5 | Course to steer: 108 °T Speed over the ground: 8.2 kn Time to the mark: 17 min | No. 609005 (worked solution) |
| 6 | Course to steer: 170 °T Speed over the ground: 8.8 kn Time to the mark: 33 min | No. 609006 (worked solution) |
| 7 | Course to steer: 283 °T Speed over the ground: 4.9 kn Time to the mark: 90 min | No. 609007 (worked solution) |
| 8 | Course to steer: 239 °T Speed over the ground: 10.3 kn Time to the mark: 34 min | No. 609008 (worked solution) |