Worksheet 900 · Skill 6
Course to steer
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You are at 206°T, 3.2 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 10.2 kn. The current sets 125°T at 1.2 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 311°T, 1.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.2 kn. The current sets 186°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 237°T, 2.4 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.8 kn. The current sets 330°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 107°T, 2.1 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.8 kn. The current sets 004°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 047°T, 2.0 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.6 kn. The current sets 286°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 155°T, 2.9 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 9.1 kn. The current sets 156°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 095°T, 3.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.6 kn. The current sets 235°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 020°T, 2.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.9 kn. The current sets 115°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 046 °T Speed over the ground: 10.5 kn Time to the mark: 39 min | No. 900001 (worked solution) |
| 2 | Course to steer: 218 °T Speed over the ground: 7.4 kn Time to the mark: 39 min | No. 900002 (worked solution) |
| 3 | Course to steer: 286 °T Speed over the ground: 10.7 kn Time to the mark: 17 min | No. 900003 (worked solution) |
| 4 | Course to steer: 093 °T Speed over the ground: 8.8 kn Time to the mark: 24 min | No. 900004 (worked solution) |
| 5 | Course to steer: 139 °T Speed over the ground: 4.7 kn Time to the mark: 51 min | No. 900005 (worked solution) |
| 6 | Course to steer: 298 °T Speed over the ground: 7.7 kn Time to the mark: 24 min | No. 900006 (worked solution) |
| 7 | Course to steer: 090 °T Speed over the ground: 8.5 kn Time to the mark: 17 min | No. 900007 (worked solution) |
| 8 | Course to steer: 258 °T Speed over the ground: 8.3 kn Time to the mark: 43 min | No. 900008 (worked solution) |