Worksheet 508 · Skill 6
Course to steer
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You are at 303°T, 3.2 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 9.2 kn. The current sets 263°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 328°T, 2.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 11.5 kn. The current sets 081°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 323°T, 2.9 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 6.2 kn. The current sets 031°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 021°T, 3.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.2 kn. The current sets 248°T at 0.5 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 040°T, 1.0 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 7.0 kn. The current sets 001°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 089°T, 1.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.1 kn. The current sets 151°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 291°T, 3.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 9.3 kn. The current sets 288°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 044°T, 3.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.0 kn. The current sets 266°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: 148 °T Speed over the ground: 8.5 kn Time to the mark: 25 min | No. 508001 (worked solution) |
| 2 | Course to steer: 193 °T Speed over the ground: 11.1 kn Time to the mark: 20 min | No. 508002 (worked solution) |
| 3 | Course to steer: 261 °T Speed over the ground: 5.5 kn Time to the mark: 55 min | No. 508003 (worked solution) |
| 4 | Course to steer: 151 °T Speed over the ground: 9.1 kn Time to the mark: 37 min | No. 508004 (worked solution) |
| 5 | Course to steer: 240 °T Speed over the ground: 6.2 kn Time to the mark: 60 min | No. 508005 (worked solution) |
| 6 | Course to steer: 087 °T Speed over the ground: 10.1 kn Time to the mark: 24 min | No. 508006 (worked solution) |
| 7 | Course to steer: 146 °T Speed over the ground: 8.2 kn Time to the mark: 23 min | No. 508007 (worked solution) |
| 8 | Course to steer: 149 °T Speed over the ground: 8.2 kn Time to the mark: 34 min | No. 508008 (worked solution) |