Worksheet 81 · Skill 6
Course to steer
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You are at 080°T, 3.7 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.2 kn. The current sets 164°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 029°T, 1.1 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 11.7 kn. The current sets 260°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 255°T, 2.2 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 9.6 kn. The current sets 334°T at 0.7 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 336°T, 1.9 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.6 kn. The current sets 120°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 062°T, 2.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.6 kn. The current sets 178°T at 2.2 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 019°T, 1.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.2 kn. The current sets 023°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 275°T, 3.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.0 kn. The current sets 340°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 005°T, 2.7 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 9.5 kn. The current sets 141°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 112 °T Speed over the ground: 10.5 kn Time to the mark: 13 min | No. 81001 (worked solution) |
| 2 | Course to steer: 118 °T Speed over the ground: 10.9 kn Time to the mark: 25 min | No. 81002 (worked solution) |
| 3 | Course to steer: 049 °T Speed over the ground: 9.8 kn Time to the mark: 38 min | No. 81003 (worked solution) |
| 4 | Course to steer: 223 °T Speed over the ground: 6.4 kn Time to the mark: 45 min | No. 81004 (worked solution) |
| 5 | Course to steer: 148 °T Speed over the ground: 12.6 kn Time to the mark: 17 min | No. 81005 (worked solution) |
| 6 | Course to steer: 127 °T Speed over the ground: 10.9 kn Time to the mark: 30 min | No. 81006 (worked solution) |
| 7 | Course to steer: 167 °T Speed over the ground: 5.6 kn Time to the mark: 30 min | No. 81007 (worked solution) |
| 8 | Course to steer: 039 °T Speed over the ground: 9.3 kn Time to the mark: 47 min | No. 81008 (worked solution) |