Worksheet 105 · Skill 6
Course to steer
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You are at 186°T, 1.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.5 kn. The current sets 298°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 051°T, 2.5 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.9 kn. The current sets 034°T at 1.3 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 213°T, 1.8 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.3 kn. The current sets 074°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 299°T, 1.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 9.8 kn. The current sets 127°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 328°T, 2.6 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 9.4 kn. The current sets 071°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 068°T, 1.6 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.5 kn. The current sets 298°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 021°T, 2.7 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.8 kn. The current sets 055°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 047°T, 2.6 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.6 kn. The current sets 028°T at 0.8 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 031 °T Speed over the ground: 5.5 kn Time to the mark: 63 min | No. 105001 (worked solution) |
| 2 | Course to steer: 248 °T Speed over the ground: 4.9 kn Time to the mark: 85 min | No. 105002 (worked solution) |
| 3 | Course to steer: 271 °T Speed over the ground: 4.0 kn Time to the mark: 68 min | No. 105003 (worked solution) |
| 4 | Course to steer: 220 °T Speed over the ground: 9.9 kn Time to the mark: 22 min | No. 105004 (worked solution) |
| 5 | Course to steer: 291 °T Speed over the ground: 8.5 kn Time to the mark: 28 min | No. 105005 (worked solution) |
| 6 | Course to steer: 016 °T Speed over the ground: 11.7 kn Time to the mark: 17 min | No. 105006 (worked solution) |
| 7 | Course to steer: 125 °T Speed over the ground: 6.5 kn Time to the mark: 30 min | No. 105007 (worked solution) |
| 8 | Course to steer: 108 °T Speed over the ground: 8.8 kn Time to the mark: 15 min | No. 105008 (worked solution) |