Worksheet 546 · Skill 6
Course to steer
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You are at 191°T, 1.4 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.4 kn. The current sets 305°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 019°T, 1.7 nm from Mill stack, bound for Red nun "2". Your speed through the water is 9.2 kn. The current sets 287°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 336°T, 2.6 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.0 kn. The current sets 348°T at 0.5 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 215°T, 1.4 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.4 kn. The current sets 212°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 317°T, 2.1 nm from Mill stack, bound for Red nun "2". Your speed through the water is 7.8 kn. The current sets 126°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 265°T, 1.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.6 kn. The current sets 053°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 317°T, 1.6 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 11.5 kn. The current sets 343°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 339°T, 1.6 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 11.9 kn. The current sets 330°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 241 °T Speed over the ground: 8.9 kn Time to the mark: 20 min | No. 546001 (worked solution) |
| 2 | Course to steer: 327 °T Speed over the ground: 10.7 kn Time to the mark: 15 min | No. 546002 (worked solution) |
| 3 | Course to steer: 106 °T Speed over the ground: 6.8 kn Time to the mark: 46 min | No. 546003 (worked solution) |
| 4 | Course to steer: 290 °T Speed over the ground: 9.1 kn Time to the mark: 31 min | No. 546004 (worked solution) |
| 5 | Course to steer: 351 °T Speed over the ground: 6.3 kn Time to the mark: 21 min | No. 546005 (worked solution) |
| 6 | Course to steer: 268 °T Speed over the ground: 10.6 kn Time to the mark: 20 min | No. 546006 (worked solution) |
| 7 | Course to steer: 285 °T Speed over the ground: 12.2 kn Time to the mark: 27 min | No. 546007 (worked solution) |
| 8 | Course to steer: 269 °T Speed over the ground: 13.3 kn Time to the mark: 28 min | No. 546008 (worked solution) |