Worksheet 907 · Skill 6
Course to steer
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You are at 346°T, 2.6 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.2 kn. The current sets 302°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 109°T, 1.1 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.7 kn. The current sets 254°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 191°T, 2.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.0 kn. The current sets 196°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 267°T, 2.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.4 kn. The current sets 168°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 152°T, 2.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 9.9 kn. The current sets 347°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 025°T, 3.7 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.3 kn. The current sets 022°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 250°T, 2.7 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.6 kn. The current sets 298°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 084°T, 3.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.5 kn. The current sets 215°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 182 °T Speed over the ground: 4.5 kn Time to the mark: 85 min | No. 907001 (worked solution) |
| 2 | Course to steer: 099 °T Speed over the ground: 7.5 kn Time to the mark: 27 min | No. 907002 (worked solution) |
| 3 | Course to steer: 048 °T Speed over the ground: 6.2 kn Time to the mark: 54 min | No. 907003 (worked solution) |
| 4 | Course to steer: 266 °T Speed over the ground: 8.3 kn Time to the mark: 23 min | No. 907004 (worked solution) |
| 5 | Course to steer: 271 °T Speed over the ground: 10.6 kn Time to the mark: 17 min | No. 907005 (worked solution) |
| 6 | Course to steer: 160 °T Speed over the ground: 5.3 kn Time to the mark: 62 min | No. 907006 (worked solution) |
| 7 | Course to steer: 194 °T Speed over the ground: 6.4 kn Time to the mark: 23 min | No. 907007 (worked solution) |
| 8 | Course to steer: 163 °T Speed over the ground: 11.1 kn Time to the mark: 13 min | No. 907008 (worked solution) |