Worksheet 339 · Skill 6
Course to steer
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You are at 311°T, 3.3 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.3 kn. The current sets 301°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 030°T, 2.8 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 12.0 kn. The current sets 204°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 037°T, 1.9 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.9 kn. The current sets 154°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 347°T, 2.0 nm from Heron Point Light, bound for Green can "1". Your speed through the water is 5.0 kn. The current sets 244°T at 0.7 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
You are at 065°T, 2.7 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.3 kn. The current sets 228°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 007°T, 2.0 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.9 kn. The current sets 224°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 082°T, 3.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.4 kn. The current sets 316°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 251°T, 2.5 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.4 kn. The current sets 016°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 177 °T Speed over the ground: 7.6 kn Time to the mark: 37 min | No. 339001 (worked solution) |
| 2 | Course to steer: 356 °T Speed over the ground: 10.8 kn Time to the mark: 25 min | No. 339002 (worked solution) |
| 3 | Course to steer: 079 °T Speed over the ground: 7.7 kn Time to the mark: 22 min | No. 339003 (worked solution) |
| 4 | Course to steer: 099 °T Speed over the ground: 4.4 kn Time to the mark: 31 min | No. 339004 (worked solution) |
| 5 | Course to steer: 264 °T Speed over the ground: 9.0 kn Time to the mark: 49 min | No. 339005 (worked solution) |
| 6 | Course to steer: 088 °T Speed over the ground: 5.7 kn Time to the mark: 40 min | No. 339006 (worked solution) |
| 7 | Course to steer: 166 °T Speed over the ground: 6.3 kn Time to the mark: 24 min | No. 339007 (worked solution) |
| 8 | Course to steer: 310 °T Speed over the ground: 6.5 kn Time to the mark: 19 min | No. 339008 (worked solution) |