Worksheet 243 · Skill 6
Course to steer
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You are at 129°T, 1.7 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.3 kn. The current sets 325°T at 1.1 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 035°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 7.5 kn. The current sets 197°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 085°T, 2.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.9 kn. The current sets 126°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 045°T, 2.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.8 kn. The current sets 283°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 058°T, 1.9 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 9.7 kn. The current sets 097°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 312°T, 3.0 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.7 kn. The current sets 095°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 168°T, 1.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.8 kn. The current sets 313°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 311°T, 2.1 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.7 kn. The current sets 127°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 273 °T Speed over the ground: 7.0 kn Time to the mark: 53 min | No. 243001 (worked solution) |
| 2 | Course to steer: 259 °T Speed over the ground: 7.9 kn Time to the mark: 49 min | No. 243002 (worked solution) |
| 3 | Course to steer: 282 °T Speed over the ground: 9.9 kn Time to the mark: 35 min | No. 243003 (worked solution) |
| 4 | Course to steer: 142 °T Speed over the ground: 8.6 kn Time to the mark: 29 min | No. 243004 (worked solution) |
| 5 | Course to steer: 290 °T Speed over the ground: 7.7 kn Time to the mark: 56 min | No. 243005 (worked solution) |
| 6 | Course to steer: 211 °T Speed over the ground: 6.1 kn Time to the mark: 52 min | No. 243006 (worked solution) |
| 7 | Course to steer: 108 °T Speed over the ground: 8.1 kn Time to the mark: 26 min | No. 243007 (worked solution) |
| 8 | Course to steer: 193 °T Speed over the ground: 9.7 kn Time to the mark: 18 min | No. 243008 (worked solution) |