Worksheet 557 · Skill 6
Course to steer
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You are at 100°T, 2.0 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 8.0 kn. The current sets 165°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 267°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.0 kn. The current sets 146°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 338°T, 2.4 nm from Mill stack, bound for Green can "3". Your speed through the water is 10.0 kn. The current sets 086°T at 1.0 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 039°T, 2.8 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.9 kn. The current sets 141°T at 1.0 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 001°T, 1.7 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 11.6 kn. The current sets 260°T at 1.0 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 105°T, 2.6 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.6 kn. The current sets 204°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 166°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.0 kn. The current sets 089°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 280°T, 3.6 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.4 kn. The current sets 110°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: 102 °T Speed over the ground: 9.2 kn Time to the mark: 17 min | No. 557001 (worked solution) |
| 2 | Course to steer: 273 °T Speed over the ground: 8.9 kn Time to the mark: 26 min | No. 557002 (worked solution) |
| 3 | Course to steer: 018 °T Speed over the ground: 10.4 kn Time to the mark: 15 min | No. 557003 (worked solution) |
| 4 | Course to steer: 107 °T Speed over the ground: 6.7 kn Time to the mark: 21 min | No. 557004 (worked solution) |
| 5 | Course to steer: 013 °T Speed over the ground: 11.2 kn Time to the mark: 28 min | No. 557005 (worked solution) |
| 6 | Course to steer: 064 °T Speed over the ground: 4.1 kn Time to the mark: 45 min | No. 557006 (worked solution) |
| 7 | Course to steer: 294 °T Speed over the ground: 6.1 kn Time to the mark: 45 min | No. 557007 (worked solution) |
| 8 | Course to steer: 147 °T Speed over the ground: 6.4 kn Time to the mark: 27 min | No. 557008 (worked solution) |