Worksheet 419 · Skill 6
Course to steer
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You are at 010°T, 3.0 nm from Mill stack, bound for Green can "1". Your speed through the water is 5.5 kn. The current sets 174°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 070°T, 1.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.2 kn. The current sets 136°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 005°T, 1.9 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 8.4 kn. The current sets 125°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 305°T, 1.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.5 kn. The current sets 036°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 302°T, 3.6 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.7 kn. The current sets 027°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 033°T, 2.3 nm from Mill stack, bound for Red nun "2". Your speed through the water is 8.7 kn. The current sets 053°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 036°T, 4.0 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.0 kn. The current sets 267°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 297°T, 4.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.8 kn. The current sets 106°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 281 °T Speed over the ground: 5.3 kn Time to the mark: 26 min | No. 419001 (worked solution) |
| 2 | Course to steer: 099 °T Speed over the ground: 12.3 kn Time to the mark: 20 min | No. 419002 (worked solution) |
| 3 | Course to steer: 079 °T Speed over the ground: 9.9 kn Time to the mark: 14 min | No. 419003 (worked solution) |
| 4 | Course to steer: 054 °T Speed over the ground: 7.2 kn Time to the mark: 37 min | No. 419004 (worked solution) |
| 5 | Course to steer: 167 °T Speed over the ground: 4.9 kn Time to the mark: 46 min | No. 419005 (worked solution) |
| 6 | Course to steer: 303 °T Speed over the ground: 8.5 kn Time to the mark: 21 min | No. 419006 (worked solution) |
| 7 | Course to steer: 125 °T Speed over the ground: 5.4 kn Time to the mark: 55 min | No. 419007 (worked solution) |
| 8 | Course to steer: 183 °T Speed over the ground: 8.7 kn Time to the mark: 32 min | No. 419008 (worked solution) |