Worksheet 234 · Skill 6
Course to steer
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You are at 048°T, 4.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.4 kn. The current sets 320°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
You are at 137°T, 1.8 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.4 kn. The current sets 142°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 267°T, 1.7 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.5 kn. The current sets 272°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 055°T, 3.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.0 kn. The current sets 114°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 013°T, 2.4 nm from Mill stack, bound for Green can "1". Your speed through the water is 12.0 kn. The current sets 209°T at 1.4 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 068°T, 2.7 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.3 kn. The current sets 249°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 321°T, 3.0 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.9 kn. The current sets 088°T at 1.4 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 209°T, 1.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.7 kn. The current sets 358°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: 167 °T Speed over the ground: 7.7 kn Time to the mark: 38 min | No. 234001 (worked solution) |
| 2 | Course to steer: 095 °T Speed over the ground: 7.8 kn Time to the mark: 20 min | No. 234002 (worked solution) |
| 3 | Course to steer: 209 °T Speed over the ground: 7.7 kn Time to the mark: 28 min | No. 234003 (worked solution) |
| 4 | Course to steer: 272 °T Speed over the ground: 4.1 kn Time to the mark: 91 min | No. 234004 (worked solution) |
| 5 | Course to steer: 295 °T Speed over the ground: 12.2 kn Time to the mark: 12 min | No. 234005 (worked solution) |
| 6 | Course to steer: 107 °T Speed over the ground: 8.8 kn Time to the mark: 24 min | No. 234006 (worked solution) |
| 7 | Course to steer: 209 °T Speed over the ground: 6.3 kn Time to the mark: 54 min | No. 234007 (worked solution) |
| 8 | Course to steer: 269 °T Speed over the ground: 8.1 kn Time to the mark: 32 min | No. 234008 (worked solution) |