Worksheet 257 · Skill 6
Course to steer
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You are at 026°T, 2.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 9.9 kn. The current sets 190°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 332°T, 1.7 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 10.2 kn. The current sets 065°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 286°T, 3.9 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.0 kn. The current sets 185°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 329°T, 2.0 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.5 kn. The current sets 135°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 087°T, 2.0 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.1 kn. The current sets 144°T at 1.0 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 098°T, 1.1 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.1 kn. The current sets 065°T at 2.1 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 047°T, 2.4 nm from Mill stack, bound for Red nun "2". Your speed through the water is 9.3 kn. The current sets 024°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 337°T, 1.7 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.0 kn. The current sets 114°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 029 °T Speed over the ground: 7.9 kn Time to the mark: 16 min | No. 257001 (worked solution) |
| 2 | Course to steer: 202 °T Speed over the ground: 9.3 kn Time to the mark: 21 min | No. 257002 (worked solution) |
| 3 | Course to steer: 128 °T Speed over the ground: 6.2 kn Time to the mark: 32 min | No. 257003 (worked solution) |
| 4 | Course to steer: 211 °T Speed over the ground: 10.8 kn Time to the mark: 26 min | No. 257004 (worked solution) |
| 5 | Course to steer: 119 °T Speed over the ground: 6.0 kn Time to the mark: 27 min | No. 257005 (worked solution) |
| 6 | Course to steer: 121 °T Speed over the ground: 10.4 kn Time to the mark: 20 min | No. 257006 (worked solution) |
| 7 | Course to steer: 293 °T Speed over the ground: 9.5 kn Time to the mark: 23 min | No. 257007 (worked solution) |
| 8 | Course to steer: 090 °T Speed over the ground: 8.1 kn Time to the mark: 35 min | No. 257008 (worked solution) |