Worksheet 506 · Skill 6
Course to steer
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You are at 031°T, 3.0 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.1 kn. The current sets 113°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 080°T, 1.9 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.8 kn. The current sets 268°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
You are at 102°T, 2.1 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.2 kn. The current sets 170°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 028°T, 2.7 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 5.1 kn. The current sets 281°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 293°T, 2.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.7 kn. The current sets 216°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 063°T, 3.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.1 kn. The current sets 096°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 243°T, 2.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.1 kn. The current sets 107°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 349°T, 2.2 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 11.3 kn. The current sets 328°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: 264 °T Speed over the ground: 3.5 kn Time to the mark: 118 min | No. 506001 (worked solution) |
| 2 | Course to steer: 010 °T Speed over the ground: 7.7 kn Time to the mark: 27 min | No. 506002 (worked solution) |
| 3 | Course to steer: 125 °T Speed over the ground: 7.3 kn Time to the mark: 19 min | No. 506003 (worked solution) |
| 4 | Course to steer: 084 °T Speed over the ground: 3.8 kn Time to the mark: 39 min | No. 506004 (worked solution) |
| 5 | Course to steer: 192 °T Speed over the ground: 7.3 kn Time to the mark: 35 min | No. 506005 (worked solution) |
| 6 | Course to steer: 142 °T Speed over the ground: 11.5 kn Time to the mark: 16 min | No. 506006 (worked solution) |
| 7 | Course to steer: 223 °T Speed over the ground: 5.9 kn Time to the mark: 28 min | No. 506007 (worked solution) |
| 8 | Course to steer: 191 °T Speed over the ground: 9.9 kn Time to the mark: 24 min | No. 506008 (worked solution) |