Worksheet 580 · Skill 6
Course to steer
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You are at 340°T, 1.6 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 6.1 kn. The current sets 229°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 154°T, 2.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 11.3 kn. The current sets 250°T at 1.6 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 284°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 10.2 kn. The current sets 331°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 035°T, 2.4 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 6.7 kn. The current sets 215°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 024°T, 2.2 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.8 kn. The current sets 245°T at 1.7 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 201°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.6 kn. The current sets 031°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 358°T, 2.2 nm from Mill stack, bound for Green can "3". Your speed through the water is 6.2 kn. The current sets 145°T at 0.6 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 018°T, 0.9 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 10.4 kn. The current sets 306°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 074 °T Speed over the ground: 5.0 kn Time to the mark: 36 min | No. 580001 (worked solution) |
| 2 | Course to steer: 287 °T Speed over the ground: 12.6 kn Time to the mark: 14 min | No. 580002 (worked solution) |
| 3 | Course to steer: 277 °T Speed over the ground: 11.4 kn Time to the mark: 12 min | No. 580003 (worked solution) |
| 4 | Course to steer: 002 °T Speed over the ground: 5.5 kn Time to the mark: 53 min | No. 580004 (worked solution) |
| 5 | Course to steer: 259 °T Speed over the ground: 7.5 kn Time to the mark: 36 min | No. 580005 (worked solution) |
| 6 | Course to steer: 257 °T Speed over the ground: 4.4 kn Time to the mark: 68 min | No. 580006 (worked solution) |
| 7 | Course to steer: 001 °T Speed over the ground: 5.7 kn Time to the mark: 25 min | No. 580007 (worked solution) |
| 8 | Course to steer: 038 °T Speed over the ground: 10.4 kn Time to the mark: 20 min | No. 580008 (worked solution) |