Worksheet 50 · Skill 6
Course to steer
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You are at 072°T, 2.5 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 8.5 kn. The current sets 109°T at 0.5 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 149°T, 1.7 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.2 kn. The current sets 036°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 031°T, 2.6 nm from Mill stack, bound for Red nun "2". Your speed through the water is 6.0 kn. The current sets 151°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 066°T, 2.8 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 12.0 kn. The current sets 048°T at 1.9 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 050°T, 3.0 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.9 kn. The current sets 159°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 035°T, 3.1 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.5 kn. The current sets 261°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 057°T, 1.7 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 6.2 kn. The current sets 257°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 049°T, 2.2 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 10.5 kn. The current sets 008°T at 1.1 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 029 °T Speed over the ground: 8.6 kn Time to the mark: 17 min | No. 50001 (worked solution) |
| 2 | Course to steer: 116 °T Speed over the ground: 7.8 kn Time to the mark: 22 min | No. 50002 (worked solution) |
| 3 | Course to steer: 308 °T Speed over the ground: 4.5 kn Time to the mark: 39 min | No. 50003 (worked solution) |
| 4 | Course to steer: 168 °T Speed over the ground: 11.2 kn Time to the mark: 18 min | No. 50004 (worked solution) |
| 5 | Course to steer: 115 °T Speed over the ground: 7.6 kn Time to the mark: 32 min | No. 50005 (worked solution) |
| 6 | Course to steer: 246 °T Speed over the ground: 8.2 kn Time to the mark: 52 min | No. 50006 (worked solution) |
| 7 | Course to steer: 299 °T Speed over the ground: 6.7 kn Time to the mark: 63 min | No. 50007 (worked solution) |
| 8 | Course to steer: 100 °T Speed over the ground: 10.5 kn Time to the mark: 13 min | No. 50008 (worked solution) |