Worksheet 381 · Skill 6
Course to steer
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You are at 087°T, 1.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.2 kn. The current sets 240°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 339°T, 2.8 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 9.9 kn. The current sets 020°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 348°T, 1.9 nm from Mill stack, bound for Red nun "2". Your speed through the water is 11.0 kn. The current sets 130°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 031°T, 4.2 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.7 kn. The current sets 277°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 049°T, 3.5 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.5 kn. The current sets 059°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 024°T, 1.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.3 kn. The current sets 326°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 010°T, 2.6 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 5.1 kn. The current sets 142°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 268°T, 2.6 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.7 kn. The current sets 009°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 093 °T Speed over the ground: 8.1 kn Time to the mark: 29 min | No. 381001 (worked solution) |
| 2 | Course to steer: 264 °T Speed over the ground: 9.6 kn Time to the mark: 36 min | No. 381002 (worked solution) |
| 3 | Course to steer: 333 °T Speed over the ground: 9.6 kn Time to the mark: 13 min | No. 381003 (worked solution) |
| 4 | Course to steer: 135 °T Speed over the ground: 4.0 kn Time to the mark: 81 min | No. 381004 (worked solution) |
| 5 | Course to steer: 251 °T Speed over the ground: 4.2 kn Time to the mark: 90 min | No. 381005 (worked solution) |
| 6 | Course to steer: 039 °T Speed over the ground: 11.7 kn Time to the mark: 15 min | No. 381006 (worked solution) |
| 7 | Course to steer: 018 °T Speed over the ground: 4.2 kn Time to the mark: 103 min | No. 381007 (worked solution) |
| 8 | Course to steer: 246 °T Speed over the ground: 8.6 kn Time to the mark: 20 min | No. 381008 (worked solution) |