Worksheet 142 · Skill 6
Course to steer
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You are at 274°T, 3.6 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.5 kn. The current sets 227°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 042°T, 1.8 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 117°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 104°T, 1.7 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.9 kn. The current sets 267°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 032°T, 2.6 nm from Mill stack, bound for Green can "1". Your speed through the water is 10.3 kn. The current sets 023°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 032°T, 2.7 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 9.3 kn. The current sets 021°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 046°T, 4.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.2 kn. The current sets 123°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 314°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 7.0 kn. The current sets 195°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 140°T, 2.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 10.9 kn. The current sets 209°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 176 °T Speed over the ground: 11.2 kn Time to the mark: 18 min | No. 142001 (worked solution) |
| 2 | Course to steer: 257 °T Speed over the ground: 10.6 kn Time to the mark: 39 min | No. 142002 (worked solution) |
| 3 | Course to steer: 124 °T Speed over the ground: 10.0 kn Time to the mark: 15 min | No. 142003 (worked solution) |
| 4 | Course to steer: 275 °T Speed over the ground: 9.9 kn Time to the mark: 20 min | No. 142004 (worked solution) |
| 5 | Course to steer: 078 °T Speed over the ground: 9.7 kn Time to the mark: 15 min | No. 142005 (worked solution) |
| 6 | Course to steer: 187 °T Speed over the ground: 8.6 kn Time to the mark: 35 min | No. 142006 (worked solution) |
| 7 | Course to steer: 290 °T Speed over the ground: 7.2 kn Time to the mark: 21 min | No. 142007 (worked solution) |
| 8 | Course to steer: 283 °T Speed over the ground: 11.6 kn Time to the mark: 17 min | No. 142008 (worked solution) |