Worksheet 427 · Skill 6
Course to steer
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You are at 048°T, 1.8 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 5.5 kn. The current sets 146°T at 1.5 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 244°T, 2.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.4 kn. The current sets 343°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 246°T, 2.9 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.5 kn. The current sets 343°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 328°T, 3.0 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.3 kn. The current sets 219°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 299°T, 3.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.2 kn. The current sets 318°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 289°T, 3.1 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.5 kn. The current sets 171°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 299°T, 3.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.1 kn. The current sets 103°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 002°T, 0.8 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 9.7 kn. The current sets 039°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 039 °T Speed over the ground: 5.2 kn Time to the mark: 33 min | No. 427001 (worked solution) |
| 2 | Course to steer: 192 °T Speed over the ground: 3.6 kn Time to the mark: 36 min | No. 427002 (worked solution) |
| 3 | Course to steer: 196 °T Speed over the ground: 7.5 kn Time to the mark: 17 min | No. 427003 (worked solution) |
| 4 | Course to steer: 084 °T Speed over the ground: 5.0 kn Time to the mark: 69 min | No. 427004 (worked solution) |
| 5 | Course to steer: 106 °T Speed over the ground: 3.8 kn Time to the mark: 106 min | No. 427005 (worked solution) |
| 6 | Course to steer: 151 °T Speed over the ground: 10.4 kn Time to the mark: 17 min | No. 427006 (worked solution) |
| 7 | Course to steer: 089 °T Speed over the ground: 10.3 kn Time to the mark: 39 min | No. 427007 (worked solution) |
| 8 | Course to steer: 290 °T Speed over the ground: 9.3 kn Time to the mark: 38 min | No. 427008 (worked solution) |