Worksheet 255 · Skill 6
Course to steer
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You are at 022°T, 1.0 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 10.2 kn. The current sets 122°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 300°T, 1.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.5 kn. The current sets 031°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 049°T, 2.4 nm from Mill stack, bound for Green can "3". Your speed through the water is 11.6 kn. The current sets 063°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 290°T, 4.2 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.2 kn. The current sets 354°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 316°T, 2.2 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 7.9 kn. The current sets 315°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 009°T, 2.5 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.7 kn. The current sets 148°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 301°T, 3.7 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.6 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 265°T, 2.2 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.4 kn. The current sets 109°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 022 °T Speed over the ground: 10.0 kn Time to the mark: 20 min | No. 255001 (worked solution) |
| 2 | Course to steer: 254 °T Speed over the ground: 7.6 kn Time to the mark: 30 min | No. 255002 (worked solution) |
| 3 | Course to steer: 319 °T Speed over the ground: 11.2 kn Time to the mark: 19 min | No. 255003 (worked solution) |
| 4 | Course to steer: 148 °T Speed over the ground: 7.1 kn Time to the mark: 32 min | No. 255004 (worked solution) |
| 5 | Course to steer: 177 °T Speed over the ground: 7.0 kn Time to the mark: 27 min | No. 255005 (worked solution) |
| 6 | Course to steer: 130 °T Speed over the ground: 7.6 kn Time to the mark: 43 min | No. 255006 (worked solution) |
| 7 | Course to steer: 170 °T Speed over the ground: 5.3 kn Time to the mark: 57 min | No. 255007 (worked solution) |
| 8 | Course to steer: 037 °T Speed over the ground: 5.8 kn Time to the mark: 61 min | No. 255008 (worked solution) |