Worksheet 61 · Skill 6
Course to steer
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You are at 004°T, 1.4 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 7.3 kn. The current sets 108°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 043°T, 1.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.7 kn. The current sets 003°T at 2.3 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 311°T, 1.1 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.5 kn. The current sets 308°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 266°T, 3.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.5 kn. The current sets 237°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 033°T, 1.9 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 6.6 kn. The current sets 115°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 005°T, 1.4 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 9.4 kn. The current sets 018°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 251°T, 1.9 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 10.3 kn. The current sets 285°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 157°T, 3.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.7 kn. The current sets 214°T at 2.3 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 254 °T Speed over the ground: 6.6 kn Time to the mark: 53 min | No. 61001 (worked solution) |
| 2 | Course to steer: 125 °T Speed over the ground: 8.7 kn Time to the mark: 33 min | No. 61002 (worked solution) |
| 3 | Course to steer: 267 °T Speed over the ground: 10.0 kn Time to the mark: 16 min | No. 61003 (worked solution) |
| 4 | Course to steer: 182 °T Speed over the ground: 7.1 kn Time to the mark: 25 min | No. 61004 (worked solution) |
| 5 | Course to steer: 284 °T Speed over the ground: 5.1 kn Time to the mark: 86 min | No. 61005 (worked solution) |
| 6 | Course to steer: 075 °T Speed over the ground: 10.4 kn Time to the mark: 22 min | No. 61006 (worked solution) |
| 7 | Course to steer: 055 °T Speed over the ground: 8.9 kn Time to the mark: 40 min | No. 61007 (worked solution) |
| 8 | Course to steer: 281 °T Speed over the ground: 8.9 kn Time to the mark: 33 min | No. 61008 (worked solution) |