Worksheet 521 · Skill 6
Course to steer
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You are at 043°T, 3.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.1 kn. The current sets 097°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 232°T, 1.1 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.3 kn. The current sets 119°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 311°T, 1.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.3 kn. The current sets 317°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 311°T, 1.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.4 kn. The current sets 158°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 011°T, 2.6 nm from Mill stack, bound for Green can "3". Your speed through the water is 8.4 kn. The current sets 307°T at 1.7 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 016°T, 2.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.9 kn. The current sets 352°T at 1.7 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 305°T, 1.6 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 11.5 kn. The current sets 135°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 266°T, 1.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.6 kn. The current sets 246°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 161 °T Speed over the ground: 6.6 kn Time to the mark: 40 min | No. 521001 (worked solution) |
| 2 | Course to steer: 286 °T Speed over the ground: 4.4 kn Time to the mark: 55 min | No. 521002 (worked solution) |
| 3 | Course to steer: 248 °T Speed over the ground: 8.0 kn Time to the mark: 30 min | No. 521003 (worked solution) |
| 4 | Course to steer: 220 °T Speed over the ground: 10.4 kn Time to the mark: 27 min | No. 521004 (worked solution) |
| 5 | Course to steer: 357 °T Speed over the ground: 9.6 kn Time to the mark: 13 min | No. 521005 (worked solution) |
| 6 | Course to steer: 137 °T Speed over the ground: 4.6 kn Time to the mark: 76 min | No. 521006 (worked solution) |
| 7 | Course to steer: 009 °T Speed over the ground: 10.3 kn Time to the mark: 37 min | No. 521007 (worked solution) |
| 8 | Course to steer: 212 °T Speed over the ground: 13.2 kn Time to the mark: 17 min | No. 521008 (worked solution) |