Worksheet 790 · Skill 6
Course to steer
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You are at 231°T, 1.7 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.9 kn. The current sets 200°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 348°T, 1.9 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 9.7 kn. The current sets 261°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 079°T, 3.0 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.2 kn. The current sets 215°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 003°T, 2.3 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 8.9 kn. The current sets 334°T at 1.1 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 208°T, 1.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.6 kn. The current sets 140°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 309°T, 2.0 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 9.5 kn. The current sets 182°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 018°T, 1.8 nm from Mill stack, bound for Green can "3". Your speed through the water is 11.4 kn. The current sets 252°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 111°T, 1.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.5 kn. The current sets 110°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: 332 °T Speed over the ground: 4.7 kn Time to the mark: 37 min | No. 790001 (worked solution) |
| 2 | Course to steer: 206 °T Speed over the ground: 10.3 kn Time to the mark: 30 min | No. 790002 (worked solution) |
| 3 | Course to steer: 153 °T Speed over the ground: 10.4 kn Time to the mark: 15 min | No. 790003 (worked solution) |
| 4 | Course to steer: 087 °T Speed over the ground: 8.5 kn Time to the mark: 26 min | No. 790004 (worked solution) |
| 5 | Course to steer: 296 °T Speed over the ground: 4.8 kn Time to the mark: 55 min | No. 790005 (worked solution) |
| 6 | Course to steer: 076 °T Speed over the ground: 9.1 kn Time to the mark: 36 min | No. 790006 (worked solution) |
| 7 | Course to steer: 001 °T Speed over the ground: 10.9 kn Time to the mark: 16 min | No. 790007 (worked solution) |
| 8 | Course to steer: 252 °T Speed over the ground: 9.1 kn Time to the mark: 39 min | No. 790008 (worked solution) |