Worksheet 156 · Skill 6
Course to steer
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You are at 158°T, 1.1 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 11.8 kn. The current sets 346°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 086°T, 1.9 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.2 kn. The current sets 078°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 057°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.7 kn. The current sets 216°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 053°T, 1.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.3 kn. The current sets 206°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 046°T, 4.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.9 kn. The current sets 118°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 277°T, 3.7 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 9.8 kn. The current sets 083°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 073°T, 2.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.9 kn. The current sets 358°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 301°T, 1.8 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 5.6 kn. The current sets 198°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 100 °T Speed over the ground: 11.5 kn Time to the mark: 20 min | No. 156001 (worked solution) |
| 2 | Course to steer: 128 °T Speed over the ground: 6.8 kn Time to the mark: 25 min | No. 156002 (worked solution) |
| 3 | Course to steer: 265 °T Speed over the ground: 13.2 kn Time to the mark: 31 min | No. 156003 (worked solution) |
| 4 | Course to steer: 117 °T Speed over the ground: 5.8 kn Time to the mark: 40 min | No. 156004 (worked solution) |
| 5 | Course to steer: 153 °T Speed over the ground: 12.9 kn Time to the mark: 20 min | No. 156005 (worked solution) |
| 6 | Course to steer: 140 °T Speed over the ground: 10.3 kn Time to the mark: 17 min | No. 156006 (worked solution) |
| 7 | Course to steer: 156 °T Speed over the ground: 8.6 kn Time to the mark: 21 min | No. 156007 (worked solution) |
| 8 | Course to steer: 321 °T Speed over the ground: 5.1 kn Time to the mark: 52 min | No. 156008 (worked solution) |