Worksheet 101 · Skill 6
Course to steer
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You are at 046°T, 2.4 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.3 kn. The current sets 164°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 051°T, 2.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 11.3 kn. The current sets 152°T at 0.9 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 003°T, 2.4 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 9.0 kn. The current sets 246°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 332°T, 1.7 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.3 kn. The current sets 310°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 307°T, 1.5 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 11.0 kn. The current sets 006°T at 1.6 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
You are at 201°T, 2.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.4 kn. The current sets 221°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 300°T, 1.9 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 11.6 kn. The current sets 105°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 217°T, 2.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 035°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: 271 °T Speed over the ground: 8.9 kn Time to the mark: 45 min | No. 101001 (worked solution) |
| 2 | Course to steer: 087 °T Speed over the ground: 11.7 kn Time to the mark: 12 min | No. 101002 (worked solution) |
| 3 | Course to steer: 097 °T Speed over the ground: 7.2 kn Time to the mark: 34 min | No. 101003 (worked solution) |
| 4 | Course to steer: 201 °T Speed over the ground: 9.9 kn Time to the mark: 28 min | No. 101004 (worked solution) |
| 5 | Course to steer: 285 °T Speed over the ground: 11.4 kn Time to the mark: 29 min | No. 101005 (worked solution) |
| 6 | Course to steer: 293 °T Speed over the ground: 8.6 kn Time to the mark: 34 min | No. 101006 (worked solution) |
| 7 | Course to steer: 192 °T Speed over the ground: 11.9 kn Time to the mark: 13 min | No. 101007 (worked solution) |
| 8 | Course to steer: 241 °T Speed over the ground: 9.5 kn Time to the mark: 13 min | No. 101008 (worked solution) |