Worksheet 229 · Skill 6
Course to steer
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You are at 299°T, 4.1 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 9.5 kn. The current sets 252°T at 2.1 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 018°T, 3.2 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 8.1 kn. The current sets 252°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 149°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 319°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 340°T, 1.4 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 7.4 kn. The current sets 172°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 046°T, 3.9 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 10.4 kn. The current sets 207°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 073°T, 2.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.5 kn. The current sets 023°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 024°T, 2.3 nm from Mill stack, bound for Green can "3". Your speed through the water is 5.7 kn. The current sets 085°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 056°T, 3.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.2 kn. The current sets 250°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 140 °T Speed over the ground: 8.9 kn Time to the mark: 27 min | No. 229001 (worked solution) |
| 2 | Course to steer: 140 °T Speed over the ground: 7.9 kn Time to the mark: 42 min | No. 229002 (worked solution) |
| 3 | Course to steer: 277 °T Speed over the ground: 10.2 kn Time to the mark: 34 min | No. 229003 (worked solution) |
| 4 | Course to steer: 059 °T Speed over the ground: 7.0 kn Time to the mark: 39 min | No. 229004 (worked solution) |
| 5 | Course to steer: 264 °T Speed over the ground: 11.9 kn Time to the mark: 33 min | No. 229005 (worked solution) |
| 6 | Course to steer: 260 °T Speed over the ground: 11.0 kn Time to the mark: 38 min | No. 229006 (worked solution) |
| 7 | Course to steer: 323 °T Speed over the ground: 4.9 kn Time to the mark: 32 min | No. 229007 (worked solution) |
| 8 | Course to steer: 158 °T Speed over the ground: 7.2 kn Time to the mark: 33 min | No. 229008 (worked solution) |