Worksheet 649 · Skill 6
Course to steer
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You are at 211°T, 1.1 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 10.6 kn. The current sets 260°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 039°T, 3.9 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.7 kn. The current sets 295°T at 1.6 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 005°T, 1.7 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 6.2 kn. The current sets 155°T at 1.7 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 026°T, 2.6 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.2 kn. The current sets 168°T at 0.6 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, 1.7 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 7.7 kn. The current sets 339°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 192°T, 1.9 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.7 kn. The current sets 176°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 346°T, 2.1 nm from Mill stack, bound for Green can "3". Your speed through the water is 9.6 kn. The current sets 126°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 165°T, 1.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.8 kn. The current sets 011°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: 310 °T Speed over the ground: 12.1 kn Time to the mark: 17 min | No. 649001 (worked solution) |
| 2 | Course to steer: 153 °T Speed over the ground: 4.6 kn Time to the mark: 68 min | No. 649002 (worked solution) |
| 3 | Course to steer: 294 °T Speed over the ground: 5.0 kn Time to the mark: 77 min | No. 649003 (worked solution) |
| 4 | Course to steer: 118 °T Speed over the ground: 5.6 kn Time to the mark: 57 min | No. 649004 (worked solution) |
| 5 | Course to steer: 259 °T Speed over the ground: 8.5 kn Time to the mark: 50 min | No. 649005 (worked solution) |
| 6 | Course to steer: 035 °T Speed over the ground: 4.2 kn Time to the mark: 77 min | No. 649006 (worked solution) |
| 7 | Course to steer: 006 °T Speed over the ground: 9.0 kn Time to the mark: 18 min | No. 649007 (worked solution) |
| 8 | Course to steer: 247 °T Speed over the ground: 10.2 kn Time to the mark: 21 min | No. 649008 (worked solution) |