Worksheet 583 · Skill 6
Course to steer
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You are at 099°T, 1.7 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.2 kn. The current sets 060°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
You are at 230°T, 1.8 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.3 kn. The current sets 204°T at 0.9 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 233°T, 2.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.1 kn. The current sets 175°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 246°T, 1.8 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 204°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 003°T, 1.7 nm from Mill stack, bound for Green can "1". Your speed through the water is 9.6 kn. The current sets 254°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 345°T, 1.6 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 11.3 kn. The current sets 216°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 060°T, 2.6 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.3 kn. The current sets 123°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 023°T, 1.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.2 kn. The current sets 231°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: 148 °T Speed over the ground: 5.5 kn Time to the mark: 29 min | No. 583001 (worked solution) |
| 2 | Course to steer: 235 °T Speed over the ground: 6.1 kn Time to the mark: 21 min | No. 583002 (worked solution) |
| 3 | Course to steer: 237 °T Speed over the ground: 8.1 kn Time to the mark: 17 min | No. 583003 (worked solution) |
| 4 | Course to steer: 278 °T Speed over the ground: 11.7 kn Time to the mark: 19 min | No. 583004 (worked solution) |
| 5 | Course to steer: 315 °T Speed over the ground: 10.5 kn Time to the mark: 13 min | No. 583005 (worked solution) |
| 6 | Course to steer: 310 °T Speed over the ground: 11.4 kn Time to the mark: 27 min | No. 583006 (worked solution) |
| 7 | Course to steer: 160 °T Speed over the ground: 11.3 kn Time to the mark: 19 min | No. 583007 (worked solution) |
| 8 | Course to steer: 098 °T Speed over the ground: 5.9 kn Time to the mark: 55 min | No. 583008 (worked solution) |