Worksheet 83 · Skill 6
Course to steer
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You are at 275°T, 3.7 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 7.4 kn. The current sets 090°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 208°T, 2.2 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.5 kn. The current sets 343°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 074°T, 0.9 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.4 kn. The current sets 230°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 249°T, 1.8 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.9 kn. The current sets 157°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 056°T, 4.0 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 8.0 kn. The current sets 055°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 302°T, 4.0 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.5 kn. The current sets 079°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 289°T, 1.4 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.1 kn. The current sets 027°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
You are at 117°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.7 kn. The current sets 150°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 144 °T Speed over the ground: 8.6 kn Time to the mark: 19 min | No. 83001 (worked solution) |
| 2 | Course to steer: 246 °T Speed over the ground: 10.4 kn Time to the mark: 12 min | No. 83002 (worked solution) |
| 3 | Course to steer: 032 °T Speed over the ground: 4.1 kn Time to the mark: 55 min | No. 83003 (worked solution) |
| 4 | Course to steer: 291 °T Speed over the ground: 6.9 kn Time to the mark: 28 min | No. 83004 (worked solution) |
| 5 | Course to steer: 178 °T Speed over the ground: 7.2 kn Time to the mark: 32 min | No. 83005 (worked solution) |
| 6 | Course to steer: 182 °T Speed over the ground: 5.4 kn Time to the mark: 52 min | No. 83006 (worked solution) |
| 7 | Course to steer: 257 °T Speed over the ground: 10.4 kn Time to the mark: 20 min | No. 83007 (worked solution) |
| 8 | Course to steer: 273 °T Speed over the ground: 10.3 kn Time to the mark: 38 min | No. 83008 (worked solution) |