Worksheet 400 · Skill 6
Course to steer
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You are at 273°T, 2.8 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 11.5 kn. The current sets 060°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 088°T, 2.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.4 kn. The current sets 131°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 348°T, 1.5 nm from Heron Point Light, bound for Green can "1". Your speed through the water is 9.2 kn. The current sets 149°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 225°T, 1.7 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.0 kn. The current sets 259°T at 0.8 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 321°T, 2.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 7.5 kn. The current sets 221°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 066°T, 1.5 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.5 kn. The current sets 184°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 102°T, 1.8 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.3 kn. The current sets 018°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 292°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.5 kn. The current sets 057°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: 157 °T Speed over the ground: 11.4 kn Time to the mark: 11 min | No. 400001 (worked solution) |
| 2 | Course to steer: 092 °T Speed over the ground: 8.0 kn Time to the mark: 24 min | No. 400002 (worked solution) |
| 3 | Course to steer: 080 °T Speed over the ground: 10.2 kn Time to the mark: 12 min | No. 400003 (worked solution) |
| 4 | Course to steer: 229 °T Speed over the ground: 7.7 kn Time to the mark: 24 min | No. 400004 (worked solution) |
| 5 | Course to steer: 172 °T Speed over the ground: 9.2 kn Time to the mark: 23 min | No. 400005 (worked solution) |
| 6 | Course to steer: 270 °T Speed over the ground: 8.6 kn Time to the mark: 43 min | No. 400006 (worked solution) |
| 7 | Course to steer: 138 °T Speed over the ground: 9.6 kn Time to the mark: 16 min | No. 400007 (worked solution) |
| 8 | Course to steer: 250 °T Speed over the ground: 8.3 kn Time to the mark: 30 min | No. 400008 (worked solution) |