Worksheet 441 · Skill 6
Course to steer
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You are at 310°T, 2.0 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.9 kn. The current sets 260°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 016°T, 2.0 nm from Mill stack, bound for Red nun "2". Your speed through the water is 11.3 kn. The current sets 228°T at 2.4 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 091°T, 3.0 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.2 kn. The current sets 267°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 277°T, 1.7 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.0 kn. The current sets 021°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 262°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.2 kn. The current sets 162°T at 2.4 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 066°T, 2.1 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.2 kn. The current sets 217°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 154°T, 2.0 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.1 kn. The current sets 268°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 037°T, 3.1 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.1 kn. The current sets 052°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 198 °T Speed over the ground: 9.6 kn Time to the mark: 30 min | No. 441001 (worked solution) |
| 2 | Course to steer: 328 °T Speed over the ground: 11.2 kn Time to the mark: 13 min | No. 441002 (worked solution) |
| 3 | Course to steer: 359 °T Speed over the ground: 11.3 kn Time to the mark: 21 min | No. 441003 (worked solution) |
| 4 | Course to steer: 252 °T Speed over the ground: 7.7 kn Time to the mark: 24 min | No. 441004 (worked solution) |
| 5 | Course to steer: 287 °T Speed over the ground: 5.2 kn Time to the mark: 44 min | No. 441005 (worked solution) |
| 6 | Course to steer: 131 °T Speed over the ground: 6.6 kn Time to the mark: 30 min | No. 441006 (worked solution) |
| 7 | Course to steer: 079 °T Speed over the ground: 4.1 kn Time to the mark: 71 min | No. 441007 (worked solution) |
| 8 | Course to steer: 246 °T Speed over the ground: 6.7 kn Time to the mark: 64 min | No. 441008 (worked solution) |