Worksheet 837 · Skill 6
Course to steer
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You are at 277°T, 1.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.9 kn. The current sets 091°T at 2.3 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 222°T, 1.7 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.1 kn. The current sets 164°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 067°T, 2.8 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.5 kn. The current sets 041°T at 2.0 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 060°T, 1.4 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 9.4 kn. The current sets 266°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 317°T, 2.9 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 9.8 kn. The current sets 283°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 044°T, 2.5 nm from Mill stack, bound for Red nun "2". Your speed through the water is 7.3 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 306°T, 3.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.8 kn. The current sets 217°T at 1.8 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 257°T, 1.8 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 10.9 kn. The current sets 278°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 222 °T Speed over the ground: 7.6 kn Time to the mark: 30 min | No. 837001 (worked solution) |
| 2 | Course to steer: 304 °T Speed over the ground: 6.4 kn Time to the mark: 36 min | No. 837002 (worked solution) |
| 3 | Course to steer: 160 °T Speed over the ground: 6.7 kn Time to the mark: 27 min | No. 837003 (worked solution) |
| 4 | Course to steer: 055 °T Speed over the ground: 8.0 kn Time to the mark: 25 min | No. 837004 (worked solution) |
| 5 | Course to steer: 170 °T Speed over the ground: 9.4 kn Time to the mark: 24 min | No. 837005 (worked solution) |
| 6 | Course to steer: 313 °T Speed over the ground: 7.6 kn Time to the mark: 28 min | No. 837006 (worked solution) |
| 7 | Course to steer: 179 °T Speed over the ground: 9.3 kn Time to the mark: 35 min | No. 837007 (worked solution) |
| 8 | Course to steer: 310 °T Speed over the ground: 12.0 kn Time to the mark: 11 min | No. 837008 (worked solution) |