Worksheet 501 · Skill 6
Course to steer
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You are at 026°T, 2.9 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 10.5 kn. The current sets 023°T at 1.2 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 350°T, 0.8 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.3 kn. The current sets 138°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 251°T, 1.8 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.8 kn. The current sets 140°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 337°T, 2.4 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.4 kn. The current sets 268°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 008°T, 2.7 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 10.6 kn. The current sets 203°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 063°T, 2.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 7.9 kn. The current sets 064°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 066°T, 2.5 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.4 kn. The current sets 140°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 293°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.9 kn. The current sets 315°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: 149 °T Speed over the ground: 9.8 kn Time to the mark: 31 min | No. 501001 (worked solution) |
| 2 | Course to steer: 023 °T Speed over the ground: 6.7 kn Time to the mark: 34 min | No. 501002 (worked solution) |
| 3 | Course to steer: 279 °T Speed over the ground: 7.5 kn Time to the mark: 29 min | No. 501003 (worked solution) |
| 4 | Course to steer: 187 °T Speed over the ground: 8.1 kn Time to the mark: 38 min | No. 501004 (worked solution) |
| 5 | Course to steer: 129 °T Speed over the ground: 11.1 kn Time to the mark: 31 min | No. 501005 (worked solution) |
| 6 | Course to steer: 262 °T Speed over the ground: 6.0 kn Time to the mark: 58 min | No. 501006 (worked solution) |
| 7 | Course to steer: 269 °T Speed over the ground: 5.9 kn Time to the mark: 73 min | No. 501007 (worked solution) |
| 8 | Course to steer: 243 °T Speed over the ground: 10.6 kn Time to the mark: 23 min | No. 501008 (worked solution) |