Worksheet 179 · Skill 6
Course to steer
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You are at 274°T, 3.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 9.3 kn. The current sets 263°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 000°T, 1.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.7 kn. The current sets 308°T at 1.0 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 309°T, 3.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.8 kn. The current sets 135°T at 1.4 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
You are at 056°T, 3.0 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.7 kn. The current sets 315°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 049°T, 1.8 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.3 kn. The current sets 278°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 040°T, 4.7 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.5 kn. The current sets 308°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 052°T, 3.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.8 kn. The current sets 345°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 Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.5 kn. The current sets 352°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 160 °T Speed over the ground: 9.1 kn Time to the mark: 18 min | No. 179001 (worked solution) |
| 2 | Course to steer: 051 °T Speed over the ground: 5.6 kn Time to the mark: 36 min | No. 179002 (worked solution) |
| 3 | Course to steer: 200 °T Speed over the ground: 10.5 kn Time to the mark: 30 min | No. 179003 (worked solution) |
| 4 | Course to steer: 358 °T Speed over the ground: 13.2 kn Time to the mark: 10 min | No. 179004 (worked solution) |
| 5 | Course to steer: 135 °T Speed over the ground: 5.3 kn Time to the mark: 45 min | No. 179005 (worked solution) |
| 6 | Course to steer: 160 °T Speed over the ground: 8.2 kn Time to the mark: 38 min | No. 179006 (worked solution) |
| 7 | Course to steer: 141 °T Speed over the ground: 7.6 kn Time to the mark: 31 min | No. 179007 (worked solution) |
| 8 | Course to steer: 241 °T Speed over the ground: 8.1 kn Time to the mark: 39 min | No. 179008 (worked solution) |