Worksheet 492 · Skill 6
Course to steer
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You are at 089°T, 2.4 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.8 kn. The current sets 195°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 059°T, 1.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.0 kn. The current sets 050°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 059°T, 2.0 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.1 kn. The current sets 359°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 033°T, 4.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.4 kn. The current sets 017°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 104°T, 2.5 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 8.2 kn. The current sets 188°T at 0.6 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 331°T, 1.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.0 kn. The current sets 355°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 252°T, 2.2 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.6 kn. The current sets 164°T at 2.3 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 099°T, 2.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.1 kn. The current sets 133°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 089 °T Speed over the ground: 10.4 kn Time to the mark: 19 min | No. 492001 (worked solution) |
| 2 | Course to steer: 122 °T Speed over the ground: 8.8 kn Time to the mark: 29 min | No. 492002 (worked solution) |
| 3 | Course to steer: 242 °T Speed over the ground: 5.5 kn Time to the mark: 72 min | No. 492003 (worked solution) |
| 4 | Course to steer: 177 °T Speed over the ground: 3.6 kn Time to the mark: 95 min | No. 492004 (worked solution) |
| 5 | Course to steer: 109 °T Speed over the ground: 8.3 kn Time to the mark: 15 min | No. 492005 (worked solution) |
| 6 | Course to steer: 191 °T Speed over the ground: 3.4 kn Time to the mark: 54 min | No. 492006 (worked solution) |
| 7 | Course to steer: 034 °T Speed over the ground: 10.3 kn Time to the mark: 36 min | No. 492007 (worked solution) |
| 8 | Course to steer: 086 °T Speed over the ground: 9.0 kn Time to the mark: 21 min | No. 492008 (worked solution) |