Worksheet 456 · Skill 6
Course to steer
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You are at 267°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.0 kn. The current sets 351°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 278°T, 1.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.7 kn. The current sets 009°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 088°T, 2.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.2 kn. The current sets 042°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 263°T, 3.1 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.3 kn. The current sets 055°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 045°T, 2.2 nm from Mill stack, bound for Green can "3". Your speed through the water is 10.2 kn. The current sets 204°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 252°T, 1.7 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.6 kn. The current sets 061°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 352°T, 2.0 nm from Mill stack, bound for Green can "3". Your speed through the water is 5.0 kn. The current sets 255°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 262°T, 2.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.2 kn. The current sets 315°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 290 °T Speed over the ground: 5.3 kn Time to the mark: 25 min | No. 456001 (worked solution) |
| 2 | Course to steer: 209 °T Speed over the ground: 8.7 kn Time to the mark: 27 min | No. 456002 (worked solution) |
| 3 | Course to steer: 348 °T Speed over the ground: 7.3 kn Time to the mark: 31 min | No. 456003 (worked solution) |
| 4 | Course to steer: 188 °T Speed over the ground: 7.2 kn Time to the mark: 18 min | No. 456004 (worked solution) |
| 5 | Course to steer: 338 °T Speed over the ground: 9.7 kn Time to the mark: 21 min | No. 456005 (worked solution) |
| 6 | Course to steer: 262 °T Speed over the ground: 5.0 kn Time to the mark: 46 min | No. 456006 (worked solution) |
| 7 | Course to steer: 030 °T Speed over the ground: 3.9 kn Time to the mark: 41 min | No. 456007 (worked solution) |
| 8 | Course to steer: 274 °T Speed over the ground: 9.3 kn Time to the mark: 15 min | No. 456008 (worked solution) |