Worksheet 407 · Skill 6
Course to steer
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You are at 317°T, 1.5 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.4 kn. The current sets 157°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 061°T, 1.8 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.1 kn. The current sets 000°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 012°T, 1.9 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 6.7 kn. The current sets 233°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 308°T, 1.8 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 8.6 kn. The current sets 174°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 146°T, 2.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.3 kn. The current sets 269°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 265°T, 2.8 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 10.1 kn. The current sets 083°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 017°T, 2.6 nm from Mill stack, bound for Red nun "2". Your speed through the water is 6.7 kn. The current sets 233°T at 0.7 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 012°T, 3.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 10.6 kn. The current sets 065°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 078 °T Speed over the ground: 6.7 kn Time to the mark: 45 min | No. 407001 (worked solution) |
| 2 | Course to steer: 094 °T Speed over the ground: 8.2 kn Time to the mark: 18 min | No. 407002 (worked solution) |
| 3 | Course to steer: 287 °T Speed over the ground: 7.5 kn Time to the mark: 54 min | No. 407003 (worked solution) |
| 4 | Course to steer: 306 °T Speed over the ground: 7.2 kn Time to the mark: 43 min | No. 407004 (worked solution) |
| 5 | Course to steer: 281 °T Speed over the ground: 7.5 kn Time to the mark: 25 min | No. 407005 (worked solution) |
| 6 | Course to steer: 044 °T Speed over the ground: 12.1 kn Time to the mark: 32 min | No. 407006 (worked solution) |
| 7 | Course to steer: 307 °T Speed over the ground: 6.9 kn Time to the mark: 20 min | No. 407007 (worked solution) |
| 8 | Course to steer: 147 °T Speed over the ground: 10.8 kn Time to the mark: 33 min | No. 407008 (worked solution) |