Worksheet 331 · Skill 6
Course to steer
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You are at 270°T, 2.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.7 kn. The current sets 245°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 186°T, 2.0 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.7 kn. The current sets 042°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 317°T, 2.3 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 10.5 kn. The current sets 138°T at 1.4 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 053°T, 2.2 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 8.2 kn. The current sets 264°T at 2.3 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 007°T, 2.2 nm from Mill stack, bound for Red nun "2". Your speed through the water is 5.5 kn. The current sets 264°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 318°T, 3.4 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.2 kn. The current sets 072°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 040°T, 4.0 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.4 kn. The current sets 096°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 058°T, 1.6 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 10.9 kn. The current sets 021°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: 200 °T Speed over the ground: 11.5 kn Time to the mark: 18 min | No. 331001 (worked solution) |
| 2 | Course to steer: 241 °T Speed over the ground: 4.4 kn Time to the mark: 48 min | No. 331002 (worked solution) |
| 3 | Course to steer: 188 °T Speed over the ground: 11.5 kn Time to the mark: 17 min | No. 331003 (worked solution) |
| 4 | Course to steer: 026 °T Speed over the ground: 7.3 kn Time to the mark: 21 min | No. 331004 (worked solution) |
| 5 | Course to steer: 325 °T Speed over the ground: 6.1 kn Time to the mark: 21 min | No. 331005 (worked solution) |
| 6 | Course to steer: 200 °T Speed over the ground: 8.9 kn Time to the mark: 34 min | No. 331006 (worked solution) |
| 7 | Course to steer: 173 °T Speed over the ground: 10.7 kn Time to the mark: 29 min | No. 331007 (worked solution) |
| 8 | Course to steer: 350 °T Speed over the ground: 12.7 kn Time to the mark: 28 min | No. 331008 (worked solution) |