Worksheet 89 · Skill 6
Course to steer
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You are at 319°T, 1.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 106°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 023°T, 1.7 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.0 kn. The current sets 144°T at 2.1 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 327°T, 2.4 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 9.8 kn. The current sets 190°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 079°T, 1.2 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 5.1 kn. The current sets 299°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 288°T, 2.0 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.0 kn. The current sets 314°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 094°T, 2.7 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.0 kn. The current sets 234°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 100°T, 2.0 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.5 kn. The current sets 236°T at 0.6 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 251°T, 1.7 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.3 kn. The current sets 351°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: 220 °T Speed over the ground: 10.8 kn Time to the mark: 28 min | No. 89001 (worked solution) |
| 2 | Course to steer: 076 °T Speed over the ground: 6.1 kn Time to the mark: 33 min | No. 89002 (worked solution) |
| 3 | Course to steer: 088 °T Speed over the ground: 9.6 kn Time to the mark: 34 min | No. 89003 (worked solution) |
| 4 | Course to steer: 061 °T Speed over the ground: 4.3 kn Time to the mark: 30 min | No. 89004 (worked solution) |
| 5 | Course to steer: 193 °T Speed over the ground: 9.4 kn Time to the mark: 21 min | No. 89005 (worked solution) |
| 6 | Course to steer: 114 °T Speed over the ground: 6.4 kn Time to the mark: 19 min | No. 89006 (worked solution) |
| 7 | Course to steer: 128 °T Speed over the ground: 5.3 kn Time to the mark: 27 min | No. 89007 (worked solution) |
| 8 | Course to steer: 264 °T Speed over the ground: 9.4 kn Time to the mark: 24 min | No. 89008 (worked solution) |