Worksheet 469 · Skill 6
Course to steer
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You are at 252°T, 2.0 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.7 kn. The current sets 251°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
You are at 181°T, 1.6 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.5 kn. The current sets 141°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 012°T, 1.5 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 5.3 kn. The current sets 007°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 017°T, 2.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.6 kn. The current sets 121°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 355°T, 1.1 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.1 kn. The current sets 161°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 016°T, 2.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.4 kn. The current sets 181°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 011°T, 0.8 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 7.3 kn. The current sets 180°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 098°T, 2.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.7 kn. The current sets 358°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 274 °T Speed over the ground: 13.8 kn Time to the mark: 15 min | No. 469001 (worked solution) |
| 2 | Course to steer: 005 °T Speed over the ground: 4.3 kn Time to the mark: 81 min | No. 469002 (worked solution) |
| 3 | Course to steer: 288 °T Speed over the ground: 5.5 kn Time to the mark: 63 min | No. 469003 (worked solution) |
| 4 | Course to steer: 039 °T Speed over the ground: 7.8 kn Time to the mark: 16 min | No. 469004 (worked solution) |
| 5 | Course to steer: 270 °T Speed over the ground: 8.6 kn Time to the mark: 34 min | No. 469005 (worked solution) |
| 6 | Course to steer: 259 °T Speed over the ground: 11.1 kn Time to the mark: 32 min | No. 469006 (worked solution) |
| 7 | Course to steer: 273 °T Speed over the ground: 7.5 kn Time to the mark: 46 min | No. 469007 (worked solution) |
| 8 | Course to steer: 231 °T Speed over the ground: 6.7 kn Time to the mark: 57 min | No. 469008 (worked solution) |