Worksheet 72 · Skill 6
Course to steer
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You are at 107°T, 1.8 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.3 kn. The current sets 347°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 042°T, 2.9 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.5 kn. The current sets 049°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 247°T, 2.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 088°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 063°T, 1.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.7 kn. The current sets 023°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 284°T, 1.0 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.7 kn. The current sets 130°T at 1.1 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 298°T, 3.7 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.7 kn. The current sets 171°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 019°T, 1.9 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 11.8 kn. The current sets 020°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 314°T, 2.0 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.2 kn. The current sets 243°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: 131 °T Speed over the ground: 9.3 kn Time to the mark: 16 min | No. 72001 (worked solution) |
| 2 | Course to steer: 253 °T Speed over the ground: 9.8 kn Time to the mark: 34 min | No. 72002 (worked solution) |
| 3 | Course to steer: 220 °T Speed over the ground: 10.5 kn Time to the mark: 16 min | No. 72003 (worked solution) |
| 4 | Course to steer: 140 °T Speed over the ground: 10.3 kn Time to the mark: 21 min | No. 72004 (worked solution) |
| 5 | Course to steer: 265 °T Speed over the ground: 8.0 kn Time to the mark: 34 min | No. 72005 (worked solution) |
| 6 | Course to steer: 082 °T Speed over the ground: 5.8 kn Time to the mark: 75 min | No. 72006 (worked solution) |
| 7 | Course to steer: 266 °T Speed over the ground: 11.2 kn Time to the mark: 40 min | No. 72007 (worked solution) |
| 8 | Course to steer: 199 °T Speed over the ground: 12.9 kn Time to the mark: 23 min | No. 72008 (worked solution) |