Worksheet 145 · Skill 6
Course to steer
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You are at 286°T, 2.7 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 10.0 kn. The current sets 047°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 013°T, 2.2 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 11.0 kn. The current sets 291°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 334°T, 2.5 nm from Mill stack, bound for Green can "3". Your speed through the water is 5.7 kn. The current sets 324°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 028°T, 1.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.1 kn. The current sets 027°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 034°T, 2.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.9 kn. The current sets 201°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 006°T, 1.6 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.7 kn. The current sets 232°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 265°T, 2.0 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.5 kn. The current sets 280°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 321°T, 3.1 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 7.5 kn. The current sets 114°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 163 °T Speed over the ground: 9.7 kn Time to the mark: 15 min | No. 145001 (worked solution) |
| 2 | Course to steer: 083 °T Speed over the ground: 9.1 kn Time to the mark: 22 min | No. 145002 (worked solution) |
| 3 | Course to steer: 041 °T Speed over the ground: 6.2 kn Time to the mark: 25 min | No. 145003 (worked solution) |
| 4 | Course to steer: 244 °T Speed over the ground: 9.9 kn Time to the mark: 41 min | No. 145004 (worked solution) |
| 5 | Course to steer: 139 °T Speed over the ground: 7.8 kn Time to the mark: 36 min | No. 145005 (worked solution) |
| 6 | Course to steer: 103 °T Speed over the ground: 7.8 kn Time to the mark: 45 min | No. 145006 (worked solution) |
| 7 | Course to steer: 196 °T Speed over the ground: 6.6 kn Time to the mark: 23 min | No. 145007 (worked solution) |
| 8 | Course to steer: 283 °T Speed over the ground: 5.3 kn Time to the mark: 49 min | No. 145008 (worked solution) |