Worksheet 573 · Skill 6
Course to steer
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You are at 004°T, 2.3 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 9.9 kn. The current sets 203°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 242°T, 2.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.0 kn. The current sets 235°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 328°T, 0.9 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 9.4 kn. The current sets 119°T at 0.9 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 041°T, 1.0 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.1 kn. The current sets 015°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 099°T, 2.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.0 kn. The current sets 145°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 102°T, 2.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.6 kn. The current sets 303°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 334°T, 1.3 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.6 kn. The current sets 081°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 044°T, 2.1 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.0 kn. The current sets 126°T at 0.9 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: 090 °T Speed over the ground: 9.2 kn Time to the mark: 26 min | No. 573001 (worked solution) |
| 2 | Course to steer: 307 °T Speed over the ground: 8.1 kn Time to the mark: 22 min | No. 573002 (worked solution) |
| 3 | Course to steer: 036 °T Speed over the ground: 9.6 kn Time to the mark: 25 min | No. 573003 (worked solution) |
| 4 | Course to steer: 252 °T Speed over the ground: 6.5 kn Time to the mark: 51 min | No. 573004 (worked solution) |
| 5 | Course to steer: 086 °T Speed over the ground: 10.6 kn Time to the mark: 16 min | No. 573005 (worked solution) |
| 6 | Course to steer: 097 °T Speed over the ground: 7.7 kn Time to the mark: 25 min | No. 573006 (worked solution) |
| 7 | Course to steer: 223 °T Speed over the ground: 7.2 kn Time to the mark: 37 min | No. 573007 (worked solution) |
| 8 | Course to steer: 263 °T Speed over the ground: 5.4 kn Time to the mark: 72 min | No. 573008 (worked solution) |