Worksheet 901 · Skill 6
Course to steer
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You are at 013°T, 2.9 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.1 kn. The current sets 243°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 303°T, 1.7 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 7.0 kn. The current sets 279°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 042°T, 1.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.5 kn. The current sets 200°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 108°T, 1.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.8 kn. The current sets 136°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 278°T, 2.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.9 kn. The current sets 326°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 047°T, 3.7 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.9 kn. The current sets 089°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 332°T, 1.1 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.8 kn. The current sets 206°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 354°T, 1.9 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.3 kn. The current sets 144°T at 0.6 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: 134 °T Speed over the ground: 4.8 kn Time to the mark: 71 min | No. 901001 (worked solution) |
| 2 | Course to steer: 321 °T Speed over the ground: 9.0 kn Time to the mark: 30 min | No. 901002 (worked solution) |
| 3 | Course to steer: 118 °T Speed over the ground: 8.2 kn Time to the mark: 30 min | No. 901003 (worked solution) |
| 4 | Course to steer: 080 °T Speed over the ground: 11.0 kn Time to the mark: 21 min | No. 901004 (worked solution) |
| 5 | Course to steer: 156 °T Speed over the ground: 4.0 kn Time to the mark: 30 min | No. 901005 (worked solution) |
| 6 | Course to steer: 170 °T Speed over the ground: 10.5 kn Time to the mark: 24 min | No. 901006 (worked solution) |
| 7 | Course to steer: 038 °T Speed over the ground: 4.6 kn Time to the mark: 51 min | No. 901007 (worked solution) |
| 8 | Course to steer: 218 °T Speed over the ground: 9.5 kn Time to the mark: 38 min | No. 901008 (worked solution) |