Worksheet 275 · Skill 6
Course to steer
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You are at 057°T, 3.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 244°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 069°T, 3.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.5 kn. The current sets 224°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 345°T, 1.4 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 6.1 kn. The current sets 266°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 156°T, 1.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.1 kn. The current sets 225°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 009°T, 0.8 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.6 kn. The current sets 195°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 105°T, 1.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.3 kn. The current sets 032°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 026°T, 3.0 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.7 kn. The current sets 267°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 024°T, 2.4 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.4 kn. The current sets 281°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 155 °T Speed over the ground: 11.5 kn Time to the mark: 20 min | No. 275001 (worked solution) |
| 2 | Course to steer: 147 °T Speed over the ground: 6.9 kn Time to the mark: 25 min | No. 275002 (worked solution) |
| 3 | Course to steer: 294 °T Speed over the ground: 8.4 kn Time to the mark: 43 min | No. 275003 (worked solution) |
| 4 | Course to steer: 251 °T Speed over the ground: 10.5 kn Time to the mark: 26 min | No. 275004 (worked solution) |
| 5 | Course to steer: 265 °T Speed over the ground: 11.4 kn Time to the mark: 30 min | No. 275005 (worked solution) |
| 6 | Course to steer: 004 °T Speed over the ground: 8.0 kn Time to the mark: 32 min | No. 275006 (worked solution) |
| 7 | Course to steer: 133 °T Speed over the ground: 4.5 kn Time to the mark: 70 min | No. 275007 (worked solution) |
| 8 | Course to steer: 247 °T Speed over the ground: 10.4 kn Time to the mark: 27 min | No. 275008 (worked solution) |