Worksheet 435 · Skill 6
Course to steer
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You are at 340°T, 1.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 8.9 kn. The current sets 351°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 143°T, 3.3 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.0 kn. The current sets 267°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 241°T, 2.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.3 kn. The current sets 178°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 088°T, 1.0 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 9.0 kn. The current sets 292°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
You are at 338°T, 1.5 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 6.4 kn. The current sets 119°T at 1.4 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 321°T, 2.0 nm from Mill stack, bound for Red nun "2". Your speed through the water is 11.9 kn. The current sets 060°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 344°T, 2.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.3 kn. The current sets 356°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 343°T, 2.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.3 kn. The current sets 104°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 054 °T Speed over the ground: 9.4 kn Time to the mark: 23 min | No. 435001 (worked solution) |
| 2 | Course to steer: 066 °T Speed over the ground: 6.9 kn Time to the mark: 37 min | No. 435002 (worked solution) |
| 3 | Course to steer: 342 °T Speed over the ground: 3.2 kn Time to the mark: 47 min | No. 435003 (worked solution) |
| 4 | Course to steer: 048 °T Speed over the ground: 8.3 kn Time to the mark: 17 min | No. 435004 (worked solution) |
| 5 | Course to steer: 061 °T Speed over the ground: 7.2 kn Time to the mark: 37 min | No. 435005 (worked solution) |
| 6 | Course to steer: 353 °T Speed over the ground: 12.9 kn Time to the mark: 10 min | No. 435006 (worked solution) |
| 7 | Course to steer: 205 °T Speed over the ground: 4.5 kn Time to the mark: 79 min | No. 435007 (worked solution) |
| 8 | Course to steer: 219 °T Speed over the ground: 5.9 kn Time to the mark: 60 min | No. 435008 (worked solution) |