Worksheet 452 · Skill 6
Course to steer
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You are at 245°T, 2.2 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.2 kn. The current sets 007°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 026°T, 2.3 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.3 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 224°T, 1.0 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.3 kn. The current sets 183°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 000°T, 1.2 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 11.5 kn. The current sets 117°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 181°T, 1.6 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.1 kn. The current sets 229°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 267°T, 3.6 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.2 kn. The current sets 293°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 005°T, 2.8 nm from Mill stack, bound for Green can "1". Your speed through the water is 7.5 kn. The current sets 197°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 277°T, 2.0 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.1 kn. The current sets 307°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 263 °T Speed over the ground: 9.9 kn Time to the mark: 21 min | No. 452001 (worked solution) |
| 2 | Course to steer: 111 °T Speed over the ground: 7.0 kn Time to the mark: 45 min | No. 452002 (worked solution) |
| 3 | Course to steer: 291 °T Speed over the ground: 9.9 kn Time to the mark: 25 min | No. 452003 (worked solution) |
| 4 | Course to steer: 061 °T Speed over the ground: 12.1 kn Time to the mark: 20 min | No. 452004 (worked solution) |
| 5 | Course to steer: 254 °T Speed over the ground: 9.4 kn Time to the mark: 25 min | No. 452005 (worked solution) |
| 6 | Course to steer: 160 °T Speed over the ground: 5.7 kn Time to the mark: 25 min | No. 452006 (worked solution) |
| 7 | Course to steer: 282 °T Speed over the ground: 7.6 kn Time to the mark: 16 min | No. 452007 (worked solution) |
| 8 | Course to steer: 055 °T Speed over the ground: 5.9 kn Time to the mark: 55 min | No. 452008 (worked solution) |