Worksheet 308 · Skill 6
Course to steer
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You are at 297°T, 1.9 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 7.6 kn. The current sets 161°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 308°T, 1.9 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.0 kn. The current sets 077°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 274°T, 3.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.3 kn. The current sets 231°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 074°T, 3.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.6 kn. The current sets 124°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 133°T, 3.0 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.3 kn. The current sets 358°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 115°T, 1.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.0 kn. The current sets 069°T at 1.6 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 024°T, 2.6 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.4 kn. The current sets 257°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 321°T, 2.9 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 9.0 kn. The current sets 231°T at 0.6 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: 318 °T Speed over the ground: 6.4 kn Time to the mark: 41 min | No. 308001 (worked solution) |
| 2 | Course to steer: 220 °T Speed over the ground: 4.6 kn Time to the mark: 62 min | No. 308002 (worked solution) |
| 3 | Course to steer: 157 °T Speed over the ground: 5.8 kn Time to the mark: 29 min | No. 308003 (worked solution) |
| 4 | Course to steer: 177 °T Speed over the ground: 5.9 kn Time to the mark: 30 min | No. 308004 (worked solution) |
| 5 | Course to steer: 037 °T Speed over the ground: 6.5 kn Time to the mark: 35 min | No. 308005 (worked solution) |
| 6 | Course to steer: 269 °T Speed over the ground: 5.5 kn Time to the mark: 65 min | No. 308006 (worked solution) |
| 7 | Course to steer: 116 °T Speed over the ground: 10.0 kn Time to the mark: 32 min | No. 308007 (worked solution) |
| 8 | Course to steer: 175 °T Speed over the ground: 9.3 kn Time to the mark: 25 min | No. 308008 (worked solution) |