Worksheet 912 · Skill 6
Course to steer
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You are at 247°T, 2.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.8 kn. The current sets 195°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 028°T, 1.8 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.0 kn. The current sets 296°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 013°T, 1.4 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 9.1 kn. The current sets 239°T at 1.5 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 328°T, 1.2 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.2 kn. The current sets 007°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 250°T, 1.1 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.6 kn. The current sets 013°T at 0.5 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 020°T, 2.2 nm from Mill stack, bound for Green can "3". Your speed through the water is 9.3 kn. The current sets 106°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, 4.8 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.4 kn. The current sets 026°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 065°T, 1.4 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 6.1 kn. The current sets 253°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 298 °T Speed over the ground: 7.7 kn Time to the mark: 20 min | No. 912001 (worked solution) |
| 2 | Course to steer: 248 °T Speed over the ground: 6.4 kn Time to the mark: 41 min | No. 912002 (worked solution) |
| 3 | Course to steer: 013 °T Speed over the ground: 8.1 kn Time to the mark: 40 min | No. 912003 (worked solution) |
| 4 | Course to steer: 242 °T Speed over the ground: 4.7 kn Time to the mark: 64 min | No. 912004 (worked solution) |
| 5 | Course to steer: 271 °T Speed over the ground: 5.5 kn Time to the mark: 41 min | No. 912005 (worked solution) |
| 6 | Course to steer: 340 °T Speed over the ground: 8.8 kn Time to the mark: 18 min | No. 912006 (worked solution) |
| 7 | Course to steer: 183 °T Speed over the ground: 6.3 kn Time to the mark: 54 min | No. 912007 (worked solution) |
| 8 | Course to steer: 057 °T Speed over the ground: 3.8 kn Time to the mark: 53 min | No. 912008 (worked solution) |