Worksheet 108 · Skill 6
Course to steer
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You are at 010°T, 3.0 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 11.6 kn. The current sets 359°T at 1.7 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, 2.1 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 8.3 kn. The current sets 203°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 007°T, 3.2 nm from Mill stack, bound for Green can "1". Your speed through the water is 10.6 kn. The current sets 142°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 135°T, 2.8 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.1 kn. The current sets 352°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 025°T, 2.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.4 kn. The current sets 141°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
You are at 213°T, 1.4 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.7 kn. The current sets 261°T at 0.5 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 073°T, 3.0 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 9.0 kn. The current sets 245°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 177°T, 1.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.1 kn. The current sets 311°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 152 °T Speed over the ground: 10.1 kn Time to the mark: 35 min | No. 108001 (worked solution) |
| 2 | Course to steer: 043 °T Speed over the ground: 6.3 kn Time to the mark: 53 min | No. 108002 (worked solution) |
| 3 | Course to steer: 272 °T Speed over the ground: 10.1 kn Time to the mark: 13 min | No. 108003 (worked solution) |
| 4 | Course to steer: 251 °T Speed over the ground: 5.2 kn Time to the mark: 43 min | No. 108004 (worked solution) |
| 5 | Course to steer: 263 °T Speed over the ground: 7.4 kn Time to the mark: 56 min | No. 108005 (worked solution) |
| 6 | Course to steer: 310 °T Speed over the ground: 7.0 kn Time to the mark: 29 min | No. 108006 (worked solution) |
| 7 | Course to steer: 274 °T Speed over the ground: 10.3 kn Time to the mark: 37 min | No. 108007 (worked solution) |
| 8 | Course to steer: 092 °T Speed over the ground: 4.3 kn Time to the mark: 78 min | No. 108008 (worked solution) |