Worksheet 309 · Skill 6
Course to steer
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You are at 007°T, 1.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 8.3 kn. The current sets 028°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 295°T, 2.1 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 8.9 kn. The current sets 003°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 337°T, 2.0 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.8 kn. The current sets 087°T at 1.3 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 049°T, 2.4 nm from Mill stack, bound for Green can "3". Your speed through the water is 11.5 kn. The current sets 268°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 088°T, 2.7 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 9.0 kn. The current sets 145°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 257°T, 2.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.7 kn. The current sets 240°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 293°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 7.5 kn. The current sets 199°T at 2.5 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 340°T, 0.9 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 8.3 kn. The current sets 209°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 130 °T Speed over the ground: 8.2 kn Time to the mark: 37 min | No. 309001 (worked solution) |
| 2 | Course to steer: 307 °T Speed over the ground: 9.9 kn Time to the mark: 26 min | No. 309002 (worked solution) |
| 3 | Course to steer: 217 °T Speed over the ground: 8.0 kn Time to the mark: 43 min | No. 309003 (worked solution) |
| 4 | Course to steer: 340 °T Speed over the ground: 12.3 kn Time to the mark: 17 min | No. 309004 (worked solution) |
| 5 | Course to steer: 282 °T Speed over the ground: 8.3 kn Time to the mark: 45 min | No. 309005 (worked solution) |
| 6 | Course to steer: 293 °T Speed over the ground: 8.2 kn Time to the mark: 20 min | No. 309006 (worked solution) |
| 7 | Course to steer: 299 °T Speed over the ground: 7.5 kn Time to the mark: 19 min | No. 309007 (worked solution) |
| 8 | Course to steer: 307 °T Speed over the ground: 8.3 kn Time to the mark: 45 min | No. 309008 (worked solution) |