Worksheet 680 · Skill 6
Course to steer
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You are at 238°T, 0.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.3 kn. The current sets 195°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 310°T, 3.7 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.5 kn. The current sets 288°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 268°T, 3.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 9.6 kn. The current sets 338°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 024°T, 3.0 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 7.2 kn. The current sets 300°T at 1.4 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 341°T, 2.3 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 11.7 kn. The current sets 114°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 298°T, 2.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 083°T at 1.4 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 308°T, 3.3 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.4 kn. The current sets 313°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 071°T, 2.1 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 5.5 kn. The current sets 347°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 278 °T Speed over the ground: 10.7 kn Time to the mark: 26 min | No. 680001 (worked solution) |
| 2 | Course to steer: 169 °T Speed over the ground: 6.6 kn Time to the mark: 50 min | No. 680002 (worked solution) |
| 3 | Course to steer: 135 °T Speed over the ground: 8.4 kn Time to the mark: 16 min | No. 680003 (worked solution) |
| 4 | Course to steer: 234 °T Speed over the ground: 7.9 kn Time to the mark: 57 min | No. 680004 (worked solution) |
| 5 | Course to steer: 213 °T Speed over the ground: 11.6 kn Time to the mark: 27 min | No. 680005 (worked solution) |
| 6 | Course to steer: 201 °T Speed over the ground: 10.7 kn Time to the mark: 26 min | No. 680006 (worked solution) |
| 7 | Course to steer: 104 °T Speed over the ground: 6.8 kn Time to the mark: 59 min | No. 680007 (worked solution) |
| 8 | Course to steer: 051 °T Speed over the ground: 6.4 kn Time to the mark: 26 min | No. 680008 (worked solution) |