Worksheet 630 · Skill 6
Course to steer
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You are at 007°T, 1.7 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.3 kn. The current sets 340°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, 4.2 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.4 kn. The current sets 275°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 023°T, 2.6 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.1 kn. The current sets 238°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 225°T, 1.7 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.4 kn. The current sets 158°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
You are at 332°T, 2.6 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 8.8 kn. The current sets 150°T at 2.4 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 299°T, 3.0 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.8 kn. The current sets 156°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 312°T, 3.0 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.3 kn. The current sets 242°T at 2.4 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 306°T, 1.5 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 7.2 kn. The current sets 294°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 234 °T Speed over the ground: 5.1 kn Time to the mark: 71 min | No. 630001 (worked solution) |
| 2 | Course to steer: 145 °T Speed over the ground: 5.4 kn Time to the mark: 54 min | No. 630002 (worked solution) |
| 3 | Course to steer: 099 °T Speed over the ground: 6.8 kn Time to the mark: 28 min | No. 630003 (worked solution) |
| 4 | Course to steer: 297 °T Speed over the ground: 6.3 kn Time to the mark: 36 min | No. 630004 (worked solution) |
| 5 | Course to steer: 285 °T Speed over the ground: 7.3 kn Time to the mark: 46 min | No. 630005 (worked solution) |
| 6 | Course to steer: 076 °T Speed over the ground: 8.5 kn Time to the mark: 47 min | No. 630006 (worked solution) |
| 7 | Course to steer: 084 °T Speed over the ground: 4.2 kn Time to the mark: 90 min | No. 630007 (worked solution) |
| 8 | Course to steer: 314 °T Speed over the ground: 9.1 kn Time to the mark: 31 min | No. 630008 (worked solution) |