Worksheet 227 · Skill 6
Course to steer
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You are at 283°T, 3.0 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.2 kn. The current sets 071°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 039°T, 1.4 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 9.4 kn. The current sets 238°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 045°T, 1.7 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.4 kn. The current sets 034°T at 1.2 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 050°T, 1.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.5 kn. The current sets 233°T at 0.7 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 042°T, 4.1 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.8 kn. The current sets 273°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 024°T, 1.0 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.8 kn. The current sets 006°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 282°T, 3.0 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 7.0 kn. The current sets 297°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 092°T, 2.2 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.5 kn. The current sets 077°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: 163 °T Speed over the ground: 5.3 kn Time to the mark: 29 min | No. 227001 (worked solution) |
| 2 | Course to steer: 010 °T Speed over the ground: 8.1 kn Time to the mark: 42 min | No. 227002 (worked solution) |
| 3 | Course to steer: 096 °T Speed over the ground: 8.0 kn Time to the mark: 21 min | No. 227003 (worked solution) |
| 4 | Course to steer: 265 °T Speed over the ground: 6.1 kn Time to the mark: 58 min | No. 227004 (worked solution) |
| 5 | Course to steer: 164 °T Speed over the ground: 9.5 kn Time to the mark: 32 min | No. 227005 (worked solution) |
| 6 | Course to steer: 248 °T Speed over the ground: 10.9 kn Time to the mark: 29 min | No. 227006 (worked solution) |
| 7 | Course to steer: 139 °T Speed over the ground: 4.8 kn Time to the mark: 32 min | No. 227007 (worked solution) |
| 8 | Course to steer: 131 °T Speed over the ground: 10.8 kn Time to the mark: 14 min | No. 227008 (worked solution) |