Worksheet 42 · Skill 6
Course to steer
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You are at 059°T, 1.4 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.0 kn. The current sets 180°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 253°T, 1.8 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 9.1 kn. The current sets 194°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 287°T, 3.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.8 kn. The current sets 279°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, 3.8 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.7 kn. The current sets 033°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 312°T, 3.0 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 9.0 kn. The current sets 248°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 314°T, 1.0 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.6 kn. The current sets 347°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 043°T, 1.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.8 kn. The current sets 294°T at 1.8 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 163°T, 1.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.7 kn. The current sets 018°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 264 °T Speed over the ground: 10.1 kn Time to the mark: 40 min | No. 42001 (worked solution) |
| 2 | Course to steer: 216 °T Speed over the ground: 10.6 kn Time to the mark: 13 min | No. 42002 (worked solution) |
| 3 | Course to steer: 170 °T Speed over the ground: 10.5 kn Time to the mark: 20 min | No. 42003 (worked solution) |
| 4 | Course to steer: 163 °T Speed over the ground: 9.1 kn Time to the mark: 39 min | No. 42004 (worked solution) |
| 5 | Course to steer: 183 °T Speed over the ground: 9.6 kn Time to the mark: 29 min | No. 42005 (worked solution) |
| 6 | Course to steer: 238 °T Speed over the ground: 8.1 kn Time to the mark: 36 min | No. 42006 (worked solution) |
| 7 | Course to steer: 248 °T Speed over the ground: 7.2 kn Time to the mark: 50 min | No. 42007 (worked solution) |
| 8 | Course to steer: 259 °T Speed over the ground: 5.4 kn Time to the mark: 24 min | No. 42008 (worked solution) |