Worksheet 245 · Skill 6
Course to steer
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You are at 033°T, 2.6 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 8.1 kn. The current sets 138°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 281°T, 3.0 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.0 kn. The current sets 077°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 206°T, 2.0 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.8 kn. The current sets 272°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 012°T, 2.7 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.0 kn. The current sets 225°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 336°T, 2.1 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.0 kn. The current sets 255°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 010°T, 3.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.8 kn. The current sets 354°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 085°T, 1.6 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.0 kn. The current sets 325°T at 2.5 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 288°T, 1.2 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 7.0 kn. The current sets 300°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: 061 °T Speed over the ground: 8.7 kn Time to the mark: 17 min | No. 245001 (worked solution) |
| 2 | Course to steer: 170 °T Speed over the ground: 6.3 kn Time to the mark: 24 min | No. 245002 (worked solution) |
| 3 | Course to steer: 246 °T Speed over the ground: 10.0 kn Time to the mark: 13 min | No. 245003 (worked solution) |
| 4 | Course to steer: 106 °T Speed over the ground: 7.2 kn Time to the mark: 50 min | No. 245004 (worked solution) |
| 5 | Course to steer: 196 °T Speed over the ground: 11.4 kn Time to the mark: 26 min | No. 245005 (worked solution) |
| 6 | Course to steer: 153 °T Speed over the ground: 6.7 kn Time to the mark: 55 min | No. 245006 (worked solution) |
| 7 | Course to steer: 030 °T Speed over the ground: 6.5 kn Time to the mark: 34 min | No. 245007 (worked solution) |
| 8 | Course to steer: 177 °T Speed over the ground: 6.1 kn Time to the mark: 20 min | No. 245008 (worked solution) |