Worksheet 909 · Skill 6
Course to steer
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You are at 003°T, 2.4 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 9.4 kn. The current sets 057°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 019°T, 1.0 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.0 kn. The current sets 343°T at 1.0 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 255°T, 1.9 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.4 kn. The current sets 282°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 314°T, 2.6 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 9.9 kn. The current sets 263°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 079°T, 3.0 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.4 kn. The current sets 185°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 267°T, 2.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.2 kn. The current sets 033°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 080°T, 0.8 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 5.0 kn. The current sets 313°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 308°T, 2.3 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 10.7 kn. The current sets 147°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 218 °T Speed over the ground: 7.3 kn Time to the mark: 48 min | No. 909001 (worked solution) |
| 2 | Course to steer: 115 °T Speed over the ground: 4.4 kn Time to the mark: 75 min | No. 909002 (worked solution) |
| 3 | Course to steer: 205 °T Speed over the ground: 8.8 kn Time to the mark: 21 min | No. 909003 (worked solution) |
| 4 | Course to steer: 181 °T Speed over the ground: 10.5 kn Time to the mark: 25 min | No. 909004 (worked solution) |
| 5 | Course to steer: 142 °T Speed over the ground: 10.1 kn Time to the mark: 14 min | No. 909005 (worked solution) |
| 6 | Course to steer: 263 °T Speed over the ground: 7.3 kn Time to the mark: 21 min | No. 909006 (worked solution) |
| 7 | Course to steer: 060 °T Speed over the ground: 4.8 kn Time to the mark: 31 min | No. 909007 (worked solution) |
| 8 | Course to steer: 080 °T Speed over the ground: 11.9 kn Time to the mark: 29 min | No. 909008 (worked solution) |