Worksheet 413 · Skill 6
Course to steer
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You are at 073°T, 2.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.7 kn. The current sets 296°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 303°T, 3.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.8 kn. The current sets 258°T at 1.9 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 260°T, 1.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.8 kn. The current sets 333°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 280°T, 1.4 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 9.7 kn. The current sets 230°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 320°T, 2.2 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.3 kn. The current sets 027°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 275°T, 2.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.4 kn. The current sets 183°T at 0.7 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 152°T, 2.8 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 7.6 kn. The current sets 118°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 078°T, 3.7 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.2 kn. The current sets 068°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: 257 °T Speed over the ground: 9.2 kn Time to the mark: 48 min | No. 413001 (worked solution) |
| 2 | Course to steer: 145 °T Speed over the ground: 6.3 kn Time to the mark: 35 min | No. 413002 (worked solution) |
| 3 | Course to steer: 049 °T Speed over the ground: 8.1 kn Time to the mark: 41 min | No. 413003 (worked solution) |
| 4 | Course to steer: 298 °T Speed over the ground: 10.7 kn Time to the mark: 12 min | No. 413004 (worked solution) |
| 5 | Course to steer: 190 °T Speed over the ground: 6.6 kn Time to the mark: 30 min | No. 413005 (worked solution) |
| 6 | Course to steer: 270 °T Speed over the ground: 9.5 kn Time to the mark: 16 min | No. 413006 (worked solution) |
| 7 | Course to steer: 289 °T Speed over the ground: 5.6 kn Time to the mark: 33 min | No. 413007 (worked solution) |
| 8 | Course to steer: 176 °T Speed over the ground: 5.0 kn Time to the mark: 27 min | No. 413008 (worked solution) |