Worksheet 587 · Skill 6
Course to steer
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You are at 042°T, 4.8 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 10.0 kn. The current sets 004°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 198°T, 1.8 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.7 kn. The current sets 083°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 210°T, 2.0 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.8 kn. The current sets 270°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 167°T, 1.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.7 kn. The current sets 011°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 044°T, 2.0 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 11.3 kn. The current sets 021°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 280°T, 3.4 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.2 kn. The current sets 220°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 061°T, 2.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.6 kn. The current sets 356°T at 0.9 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 087°T, 1.9 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.9 kn. The current sets 292°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 171 °T Speed over the ground: 8.2 kn Time to the mark: 37 min | No. 587001 (worked solution) |
| 2 | Course to steer: 285 °T Speed over the ground: 4.4 kn Time to the mark: 62 min | No. 587002 (worked solution) |
| 3 | Course to steer: 236 °T Speed over the ground: 11.7 kn Time to the mark: 15 min | No. 587003 (worked solution) |
| 4 | Course to steer: 091 °T Speed over the ground: 7.1 kn Time to the mark: 45 min | No. 587004 (worked solution) |
| 5 | Course to steer: 284 °T Speed over the ground: 11.2 kn Time to the mark: 36 min | No. 587005 (worked solution) |
| 6 | Course to steer: 165 °T Speed over the ground: 11.5 kn Time to the mark: 16 min | No. 587006 (worked solution) |
| 7 | Course to steer: 127 °T Speed over the ground: 7.0 kn Time to the mark: 31 min | No. 587007 (worked solution) |
| 8 | Course to steer: 068 °T Speed over the ground: 7.9 kn Time to the mark: 18 min | No. 587008 (worked solution) |