Worksheet 503 · Skill 6
Course to steer
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You are at 346°T, 1.1 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 9.5 kn. The current sets 340°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 051°T, 1.8 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 10.5 kn. The current sets 209°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 038°T, 2.3 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.7 kn. The current sets 029°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 013°T, 2.4 nm from Mill stack, bound for Green can "1". Your speed through the water is 6.2 kn. The current sets 231°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 325°T, 3.0 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 6.3 kn. The current sets 344°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 070°T, 3.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.6 kn. The current sets 266°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 003°T, 1.7 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 9.2 kn. The current sets 341°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 049°T, 2.3 nm from Mill stack, bound for Green can "1". Your speed through the water is 8.9 kn. The current sets 345°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 055 °T Speed over the ground: 10.4 kn Time to the mark: 21 min | No. 503001 (worked solution) |
| 2 | Course to steer: 126 °T Speed over the ground: 10.7 kn Time to the mark: 22 min | No. 503002 (worked solution) |
| 3 | Course to steer: 132 °T Speed over the ground: 6.5 kn Time to the mark: 44 min | No. 503003 (worked solution) |
| 4 | Course to steer: 298 °T Speed over the ground: 6.8 kn Time to the mark: 22 min | No. 503004 (worked solution) |
| 5 | Course to steer: 279 °T Speed over the ground: 7.5 kn Time to the mark: 28 min | No. 503005 (worked solution) |
| 6 | Course to steer: 145 °T Speed over the ground: 7.0 kn Time to the mark: 24 min | No. 503006 (worked solution) |
| 7 | Course to steer: 274 °T Speed over the ground: 9.8 kn Time to the mark: 39 min | No. 503007 (worked solution) |
| 8 | Course to steer: 282 °T Speed over the ground: 10.2 kn Time to the mark: 23 min | No. 503008 (worked solution) |