Worksheet 174 · Skill 6
Course to steer
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You are at 023°T, 1.7 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 9.0 kn. The current sets 346°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 040°T, 1.2 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 7.0 kn. The current sets 086°T at 2.4 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 336°T, 1.4 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.7 kn. The current sets 310°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 277°T, 2.1 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 7.4 kn. The current sets 030°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 028°T, 2.2 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.0 kn. The current sets 185°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 300°T, 4.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.0 kn. The current sets 306°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 190°T, 1.7 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 9.7 kn. The current sets 135°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 050°T, 2.0 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 6.5 kn. The current sets 067°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 080 °T Speed over the ground: 9.1 kn Time to the mark: 22 min | No. 174001 (worked solution) |
| 2 | Course to steer: 340 °T Speed over the ground: 6.8 kn Time to the mark: 52 min | No. 174002 (worked solution) |
| 3 | Course to steer: 241 °T Speed over the ground: 12.5 kn Time to the mark: 25 min | No. 174003 (worked solution) |
| 4 | Course to steer: 248 °T Speed over the ground: 6.4 kn Time to the mark: 32 min | No. 174004 (worked solution) |
| 5 | Course to steer: 261 °T Speed over the ground: 5.4 kn Time to the mark: 77 min | No. 174005 (worked solution) |
| 6 | Course to steer: 175 °T Speed over the ground: 9.3 kn Time to the mark: 33 min | No. 174006 (worked solution) |
| 7 | Course to steer: 014 °T Speed over the ground: 8.9 kn Time to the mark: 41 min | No. 174007 (worked solution) |
| 8 | Course to steer: 281 °T Speed over the ground: 5.2 kn Time to the mark: 80 min | No. 174008 (worked solution) |