Worksheet 570 · Skill 6
Course to steer
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You are at 051°T, 3.7 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 8.7 kn. The current sets 292°T at 2.3 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 265°T, 2.4 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.7 kn. The current sets 264°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 322°T, 1.4 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.8 kn. The current sets 116°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 311°T, 2.1 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.5 kn. The current sets 122°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 016°T, 2.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.7 kn. The current sets 191°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 287°T, 4.1 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.3 kn. The current sets 132°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 050°T, 2.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.0 kn. The current sets 084°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 073°T, 2.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.9 kn. The current sets 140°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 148 °T Speed over the ground: 7.0 kn Time to the mark: 34 min | No. 570001 (worked solution) |
| 2 | Course to steer: 180 °T Speed over the ground: 8.2 kn Time to the mark: 17 min | No. 570002 (worked solution) |
| 3 | Course to steer: 255 °T Speed over the ground: 6.1 kn Time to the mark: 47 min | No. 570003 (worked solution) |
| 4 | Course to steer: 195 °T Speed over the ground: 9.4 kn Time to the mark: 19 min | No. 570004 (worked solution) |
| 5 | Course to steer: 128 °T Speed over the ground: 6.9 kn Time to the mark: 45 min | No. 570005 (worked solution) |
| 6 | Course to steer: 170 °T Speed over the ground: 6.9 kn Time to the mark: 33 min | No. 570006 (worked solution) |
| 7 | Course to steer: 157 °T Speed over the ground: 7.4 kn Time to the mark: 32 min | No. 570007 (worked solution) |
| 8 | Course to steer: 352 °T Speed over the ground: 10.6 kn Time to the mark: 17 min | No. 570008 (worked solution) |