Worksheet 183 · Skill 6
Course to steer
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You are at 018°T, 2.7 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.6 kn. The current sets 037°T at 1.1 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 193°T, 1.3 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.3 kn. The current sets 289°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 253°T, 2.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 110°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 237°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.9 kn. The current sets 035°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 020°T, 1.8 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.2 kn. The current sets 222°T at 1.3 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 296°T, 2.1 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 9.7 kn. The current sets 296°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 019°T, 3.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.6 kn. The current sets 347°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 032°T, 3.9 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.6 kn. The current sets 255°T at 1.3 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 154 °T Speed over the ground: 9.2 kn Time to the mark: 35 min | No. 183001 (worked solution) |
| 2 | Course to steer: 232 °T Speed over the ground: 11.6 kn Time to the mark: 19 min | No. 183002 (worked solution) |
| 3 | Course to steer: 221 °T Speed over the ground: 10.7 kn Time to the mark: 16 min | No. 183003 (worked solution) |
| 4 | Course to steer: 264 °T Speed over the ground: 10.5 kn Time to the mark: 23 min | No. 183004 (worked solution) |
| 5 | Course to steer: 252 °T Speed over the ground: 12.3 kn Time to the mark: 31 min | No. 183005 (worked solution) |
| 6 | Course to steer: 172 °T Speed over the ground: 9.3 kn Time to the mark: 16 min | No. 183006 (worked solution) |
| 7 | Course to steer: 149 °T Speed over the ground: 5.3 kn Time to the mark: 63 min | No. 183007 (worked solution) |
| 8 | Course to steer: 155 °T Speed over the ground: 9.5 kn Time to the mark: 35 min | No. 183008 (worked solution) |