Worksheet 167 · Skill 6
Course to steer
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You are at 146°T, 1.7 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 7.3 kn. The current sets 162°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 209°T, 2.9 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 10.7 kn. The current sets 001°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
You are at 334°T, 1.7 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 12.0 kn. The current sets 211°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 034°T, 1.0 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 11.4 kn. The current sets 048°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 045°T, 2.1 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.4 kn. The current sets 187°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 340°T, 0.9 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.3 kn. The current sets 306°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 070°T, 3.0 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.9 kn. The current sets 213°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 016°T, 1.9 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.0 kn. The current sets 015°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 284 °T Speed over the ground: 6.9 kn Time to the mark: 56 min | No. 167001 (worked solution) |
| 2 | Course to steer: 058 °T Speed over the ground: 11.2 kn Time to the mark: 36 min | No. 167002 (worked solution) |
| 3 | Course to steer: 067 °T Speed over the ground: 10.7 kn Time to the mark: 26 min | No. 167003 (worked solution) |
| 4 | Course to steer: 127 °T Speed over the ground: 11.7 kn Time to the mark: 22 min | No. 167004 (worked solution) |
| 5 | Course to steer: 101 °T Speed over the ground: 9.9 kn Time to the mark: 28 min | No. 167005 (worked solution) |
| 6 | Course to steer: 264 °T Speed over the ground: 13.3 kn Time to the mark: 14 min | No. 167006 (worked solution) |
| 7 | Course to steer: 000 °T Speed over the ground: 5.9 kn Time to the mark: 29 min | No. 167007 (worked solution) |
| 8 | Course to steer: 237 °T Speed over the ground: 4.0 kn Time to the mark: 84 min | No. 167008 (worked solution) |