Worksheet 657 · Skill 6
Course to steer
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You are at 289°T, 1.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.0 kn. The current sets 292°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 040°T, 3.9 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 11.6 kn. The current sets 106°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 295°T, 3.0 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.1 kn. The current sets 066°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 258°T, 2.8 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 10.4 kn. The current sets 019°T at 1.8 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 257°T, 2.7 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.5 kn. The current sets 337°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 298°T, 4.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.7 kn. The current sets 093°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
You are at 302°T, 2.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.8 kn. The current sets 041°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 010°T, 1.2 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 7.1 kn. The current sets 331°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: 193 °T Speed over the ground: 8.0 kn Time to the mark: 26 min | No. 657001 (worked solution) |
| 2 | Course to steer: 177 °T Speed over the ground: 12.6 kn Time to the mark: 24 min | No. 657002 (worked solution) |
| 3 | Course to steer: 180 °T Speed over the ground: 5.6 kn Time to the mark: 33 min | No. 657003 (worked solution) |
| 4 | Course to steer: 053 °T Speed over the ground: 11.9 kn Time to the mark: 33 min | No. 657004 (worked solution) |
| 5 | Course to steer: 195 °T Speed over the ground: 7.4 kn Time to the mark: 22 min | No. 657005 (worked solution) |
| 6 | Course to steer: 189 °T Speed over the ground: 7.7 kn Time to the mark: 39 min | No. 657006 (worked solution) |
| 7 | Course to steer: 177 °T Speed over the ground: 8.1 kn Time to the mark: 22 min | No. 657007 (worked solution) |
| 8 | Course to steer: 267 °T Speed over the ground: 8.2 kn Time to the mark: 52 min | No. 657008 (worked solution) |