Worksheet 850 · Skill 6
Course to steer
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You are at 160°T, 1.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.7 kn. The current sets 017°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 045°T, 1.2 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 5.3 kn. The current sets 276°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 139°T, 1.5 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.5 kn. The current sets 163°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 020°T, 2.3 nm from Mill stack, bound for Green can "3". Your speed through the water is 8.2 kn. The current sets 114°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 303°T, 1.8 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 7.5 kn. The current sets 081°T at 1.8 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 055°T, 2.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.4 kn. The current sets 228°T at 0.8 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 329°T, 1.7 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 6.6 kn. The current sets 277°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 304°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.7 kn. The current sets 271°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 248 °T Speed over the ground: 10.1 kn Time to the mark: 22 min | No. 850001 (worked solution) |
| 2 | Course to steer: 026 °T Speed over the ground: 5.0 kn Time to the mark: 71 min | No. 850002 (worked solution) |
| 3 | Course to steer: 039 °T Speed over the ground: 7.5 kn Time to the mark: 31 min | No. 850003 (worked solution) |
| 4 | Course to steer: 333 °T Speed over the ground: 6.7 kn Time to the mark: 23 min | No. 850004 (worked solution) |
| 5 | Course to steer: 010 °T Speed over the ground: 8.3 kn Time to the mark: 46 min | No. 850005 (worked solution) |
| 6 | Course to steer: 008 °T Speed over the ground: 6.8 kn Time to the mark: 21 min | No. 850006 (worked solution) |
| 7 | Course to steer: 085 °T Speed over the ground: 4.8 kn Time to the mark: 42 min | No. 850007 (worked solution) |
| 8 | Course to steer: 250 °T Speed over the ground: 13.7 kn Time to the mark: 20 min | No. 850008 (worked solution) |