Worksheet 191 · Skill 6
Course to steer
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You are at 169°T, 1.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.5 kn. The current sets 182°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 023°T, 2.3 nm from Mill stack, bound for Red nun "2". Your speed through the water is 9.5 kn. The current sets 251°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 020°T, 1.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.4 kn. The current sets 351°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 039°T, 2.6 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.5 kn. The current sets 157°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 242°T, 2.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.3 kn. The current sets 189°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 033°T, 1.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.9 kn. The current sets 181°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 038°T, 3.0 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.0 kn. The current sets 222°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 214°T, 2.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.4 kn. The current sets 041°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 073 °T Speed over the ground: 7.3 kn Time to the mark: 45 min | No. 191001 (worked solution) |
| 2 | Course to steer: 315 °T Speed over the ground: 10.3 kn Time to the mark: 15 min | No. 191002 (worked solution) |
| 3 | Course to steer: 123 °T Speed over the ground: 4.8 kn Time to the mark: 67 min | No. 191003 (worked solution) |
| 4 | Course to steer: 138 °T Speed over the ground: 8.1 kn Time to the mark: 32 min | No. 191004 (worked solution) |
| 5 | Course to steer: 033 °T Speed over the ground: 5.7 kn Time to the mark: 68 min | No. 191005 (worked solution) |
| 6 | Course to steer: 267 °T Speed over the ground: 9.2 kn Time to the mark: 38 min | No. 191006 (worked solution) |
| 7 | Course to steer: 139 °T Speed over the ground: 6.2 kn Time to the mark: 44 min | No. 191007 (worked solution) |
| 8 | Course to steer: 236 °T Speed over the ground: 6.3 kn Time to the mark: 26 min | No. 191008 (worked solution) |