Worksheet 235 · Skill 6
Course to steer
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You are at 202°T, 1.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.0 kn. The current sets 051°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 001°T, 2.0 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.6 kn. The current sets 282°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 328°T, 2.7 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.6 kn. The current sets 240°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 268°T, 1.6 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.9 kn. The current sets 107°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 029°T, 1.6 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 10.4 kn. The current sets 125°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 289°T, 2.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 7.1 kn. The current sets 105°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 245°T, 1.6 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 11.8 kn. The current sets 196°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 354°T, 1.6 nm from Mill stack, bound for Red nun "2". Your speed through the water is 5.0 kn. The current sets 295°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 273 °T Speed over the ground: 4.2 kn Time to the mark: 69 min | No. 235001 (worked solution) |
| 2 | Course to steer: 130 °T Speed over the ground: 6.1 kn Time to the mark: 54 min | No. 235002 (worked solution) |
| 3 | Course to steer: 199 °T Speed over the ground: 12.4 kn Time to the mark: 28 min | No. 235003 (worked solution) |
| 4 | Course to steer: 228 °T Speed over the ground: 6.1 kn Time to the mark: 28 min | No. 235004 (worked solution) |
| 5 | Course to steer: 286 °T Speed over the ground: 9.0 kn Time to the mark: 48 min | No. 235005 (worked solution) |
| 6 | Course to steer: 171 °T Speed over the ground: 7.5 kn Time to the mark: 20 min | No. 235006 (worked solution) |
| 7 | Course to steer: 224 °T Speed over the ground: 13.5 kn Time to the mark: 11 min | No. 235007 (worked solution) |
| 8 | Course to steer: 343 °T Speed over the ground: 5.9 kn Time to the mark: 24 min | No. 235008 (worked solution) |