Worksheet 789 · Skill 6
Course to steer
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You are at 017°T, 3.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.1 kn. The current sets 287°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
You are at 029°T, 2.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.5 kn. The current sets 098°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 004°T, 2.9 nm from Mill stack, bound for Green can "1". Your speed through the water is 5.3 kn. The current sets 111°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 080°T, 2.0 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 11.1 kn. The current sets 061°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 296°T, 3.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.1 kn. The current sets 331°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
You are at 006°T, 1.5 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 9.0 kn. The current sets 221°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 028°T, 1.6 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 7.2 kn. The current sets 020°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 300°T, 3.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.7 kn. The current sets 239°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: 139 °T Speed over the ground: 3.8 kn Time to the mark: 95 min | No. 789001 (worked solution) |
| 2 | Course to steer: 263 °T Speed over the ground: 4.1 kn Time to the mark: 72 min | No. 789002 (worked solution) |
| 3 | Course to steer: 282 °T Speed over the ground: 3.1 kn Time to the mark: 38 min | No. 789003 (worked solution) |
| 4 | Course to steer: 132 °T Speed over the ground: 11.5 kn Time to the mark: 15 min | No. 789004 (worked solution) |
| 5 | Course to steer: 180 °T Speed over the ground: 6.4 kn Time to the mark: 43 min | No. 789005 (worked solution) |
| 6 | Course to steer: 302 °T Speed over the ground: 9.2 kn Time to the mark: 36 min | No. 789006 (worked solution) |
| 7 | Course to steer: 354 °T Speed over the ground: 9.5 kn Time to the mark: 34 min | No. 789007 (worked solution) |
| 8 | Course to steer: 146 °T Speed over the ground: 8.8 kn Time to the mark: 24 min | No. 789008 (worked solution) |