Worksheet 569 · Skill 6
Course to steer
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You are at 022°T, 3.6 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.5 kn. The current sets 352°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 010°T, 3.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.6 kn. The current sets 013°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 161°T, 1.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.4 kn. The current sets 101°T at 1.8 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 348°T, 2.3 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.2 kn. The current sets 325°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 189°T, 1.5 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.3 kn. The current sets 240°T at 1.8 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 018°T, 1.3 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 9.9 kn. The current sets 259°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
You are at 003°T, 1.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.0 kn. The current sets 001°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 336°T, 1.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.2 kn. The current sets 349°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 156 °T Speed over the ground: 3.7 kn Time to the mark: 90 min | No. 569001 (worked solution) |
| 2 | Course to steer: 153 °T Speed over the ground: 4.5 kn Time to the mark: 79 min | No. 569002 (worked solution) |
| 3 | Course to steer: 076 °T Speed over the ground: 11.1 kn Time to the mark: 28 min | No. 569003 (worked solution) |
| 4 | Course to steer: 193 °T Speed over the ground: 6.0 kn Time to the mark: 54 min | No. 569004 (worked solution) |
| 5 | Course to steer: 300 °T Speed over the ground: 7.4 kn Time to the mark: 39 min | No. 569005 (worked solution) |
| 6 | Course to steer: 289 °T Speed over the ground: 11.3 kn Time to the mark: 36 min | No. 569006 (worked solution) |
| 7 | Course to steer: 142 °T Speed over the ground: 6.6 kn Time to the mark: 44 min | No. 569007 (worked solution) |
| 8 | Course to steer: 239 °T Speed over the ground: 10.6 kn Time to the mark: 25 min | No. 569008 (worked solution) |