Worksheet 678 · Skill 6
Course to steer
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You are at 246°T, 1.0 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.0 kn. The current sets 289°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 291°T, 2.7 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 11.4 kn. The current sets 068°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 315°T, 3.2 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.5 kn. The current sets 040°T at 1.7 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 078°T, 1.7 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 7.8 kn. The current sets 088°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 031°T, 2.3 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 6.0 kn. The current sets 349°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 340°T, 2.2 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 7.6 kn. The current sets 250°T at 0.5 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 009°T, 2.0 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.4 kn. The current sets 335°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 147°T, 3.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.2 kn. The current sets 025°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 049 °T Speed over the ground: 10.0 kn Time to the mark: 31 min | No. 678001 (worked solution) |
| 2 | Course to steer: 168 °T Speed over the ground: 11.3 kn Time to the mark: 14 min | No. 678002 (worked solution) |
| 3 | Course to steer: 180 °T Speed over the ground: 7.3 kn Time to the mark: 32 min | No. 678003 (worked solution) |
| 4 | Course to steer: 028 °T Speed over the ground: 8.9 kn Time to the mark: 22 min | No. 678004 (worked solution) |
| 5 | Course to steer: 092 °T Speed over the ground: 5.9 kn Time to the mark: 27 min | No. 678005 (worked solution) |
| 6 | Course to steer: 191 °T Speed over the ground: 7.9 kn Time to the mark: 29 min | No. 678006 (worked solution) |
| 7 | Course to steer: 243 °T Speed over the ground: 11.4 kn Time to the mark: 29 min | No. 678007 (worked solution) |
| 8 | Course to steer: 078 °T Speed over the ground: 11.4 kn Time to the mark: 11 min | No. 678008 (worked solution) |