Worksheet 510 · Skill 6
Course to steer
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You are at 191°T, 1.9 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.5 kn. The current sets 033°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 108°T, 1.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.2 kn. The current sets 218°T at 1.5 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 276°T, 3.4 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.0 kn. The current sets 016°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 352°T, 1.1 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 6.4 kn. The current sets 014°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 037°T, 2.9 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.6 kn. The current sets 113°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 057°T, 3.1 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.9 kn. The current sets 187°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 127°T, 2.1 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.5 kn. The current sets 145°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 008°T, 2.0 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.8 kn. The current sets 043°T at 1.5 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 278 °T Speed over the ground: 8.8 kn Time to the mark: 33 min | No. 510001 (worked solution) |
| 2 | Course to steer: 283 °T Speed over the ground: 6.0 kn Time to the mark: 72 min | No. 510002 (worked solution) |
| 3 | Course to steer: 179 °T Speed over the ground: 5.7 kn Time to the mark: 30 min | No. 510003 (worked solution) |
| 4 | Course to steer: 264 °T Speed over the ground: 6.0 kn Time to the mark: 68 min | No. 510004 (worked solution) |
| 5 | Course to steer: 162 °T Speed over the ground: 9.6 kn Time to the mark: 30 min | No. 510005 (worked solution) |
| 6 | Course to steer: 159 °T Speed over the ground: 12.8 kn Time to the mark: 18 min | No. 510006 (worked solution) |
| 7 | Course to steer: 059 °T Speed over the ground: 6.0 kn Time to the mark: 40 min | No. 510007 (worked solution) |
| 8 | Course to steer: 241 °T Speed over the ground: 5.4 kn Time to the mark: 69 min | No. 510008 (worked solution) |