Worksheet 538 · Skill 6
Course to steer
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You are at 257°T, 1.4 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.1 kn. The current sets 342°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, 2.6 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 9.4 kn. The current sets 180°T at 0.8 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 151°T, 1.3 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 11.2 kn. The current sets 005°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 138°T, 1.7 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.8 kn. The current sets 350°T at 0.7 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 216°T, 1.9 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.3 kn. The current sets 044°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 320°T, 2.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.8 kn. The current sets 079°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 302°T, 4.7 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.1 kn. The current sets 060°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 049°T, 3.1 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 12.0 kn. The current sets 000°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 290 °T Speed over the ground: 9.5 kn Time to the mark: 16 min | No. 538001 (worked solution) |
| 2 | Course to steer: 045 °T Speed over the ground: 8.8 kn Time to the mark: 50 min | No. 538002 (worked solution) |
| 3 | Course to steer: 243 °T Speed over the ground: 10.6 kn Time to the mark: 22 min | No. 538003 (worked solution) |
| 4 | Course to steer: 271 °T Speed over the ground: 9.0 kn Time to the mark: 44 min | No. 538004 (worked solution) |
| 5 | Course to steer: 287 °T Speed over the ground: 10.8 kn Time to the mark: 22 min | No. 538005 (worked solution) |
| 6 | Course to steer: 208 °T Speed over the ground: 9.9 kn Time to the mark: 33 min | No. 538006 (worked solution) |
| 7 | Course to steer: 161 °T Speed over the ground: 8.0 kn Time to the mark: 35 min | No. 538007 (worked solution) |
| 8 | Course to steer: 244 °T Speed over the ground: 11.2 kn Time to the mark: 40 min | No. 538008 (worked solution) |