Worksheet 634 · Skill 6
Course to steer
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You are at 248°T, 1.6 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 8.7 kn. The current sets 170°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 339°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.0 kn. The current sets 284°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 002°T, 2.2 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.1 kn. The current sets 164°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 240°T, 2.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.2 kn. The current sets 183°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 065°T, 1.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.3 kn. The current sets 105°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 017°T, 1.1 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 5.7 kn. The current sets 190°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 008°T, 2.4 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 11.2 kn. The current sets 132°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 010°T, 2.1 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.3 kn. The current sets 094°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: 034 °T Speed over the ground: 8.0 kn Time to the mark: 43 min | No. 634001 (worked solution) |
| 2 | Course to steer: 236 °T Speed over the ground: 6.6 kn Time to the mark: 48 min | No. 634002 (worked solution) |
| 3 | Course to steer: 124 °T Speed over the ground: 5.9 kn Time to the mark: 56 min | No. 634003 (worked solution) |
| 4 | Course to steer: 223 °T Speed over the ground: 8.9 kn Time to the mark: 14 min | No. 634004 (worked solution) |
| 5 | Course to steer: 268 °T Speed over the ground: 6.0 kn Time to the mark: 63 min | No. 634005 (worked solution) |
| 6 | Course to steer: 312 °T Speed over the ground: 4.8 kn Time to the mark: 84 min | No. 634006 (worked solution) |
| 7 | Course to steer: 039 °T Speed over the ground: 11.2 kn Time to the mark: 40 min | No. 634007 (worked solution) |
| 8 | Course to steer: 253 °T Speed over the ground: 4.3 kn Time to the mark: 78 min | No. 634008 (worked solution) |