Worksheet 811 · Skill 6
Course to steer
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You are at 287°T, 2.8 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 7.7 kn. The current sets 238°T at 2.4 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 047°T, 2.9 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.2 kn. The current sets 039°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 002°T, 2.0 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.1 kn. The current sets 076°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
You are at 004°T, 2.6 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 5.3 kn. The current sets 352°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 257°T, 2.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.4 kn. The current sets 154°T at 1.2 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 005°T, 2.9 nm from Mill stack, bound for Green can "1". Your speed through the water is 6.5 kn. The current sets 129°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 020°T, 3.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.4 kn. The current sets 090°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 052°T, 1.6 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 7.2 kn. The current sets 004°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 140 °T Speed over the ground: 7.7 kn Time to the mark: 20 min | No. 811001 (worked solution) |
| 2 | Course to steer: 151 °T Speed over the ground: 7.0 kn Time to the mark: 34 min | No. 811002 (worked solution) |
| 3 | Course to steer: 122 °T Speed over the ground: 5.9 kn Time to the mark: 62 min | No. 811003 (worked solution) |
| 4 | Course to steer: 064 °T Speed over the ground: 6.0 kn Time to the mark: 74 min | No. 811004 (worked solution) |
| 5 | Course to steer: 283 °T Speed over the ground: 4.7 kn Time to the mark: 33 min | No. 811005 (worked solution) |
| 6 | Course to steer: 286 °T Speed over the ground: 4.6 kn Time to the mark: 27 min | No. 811006 (worked solution) |
| 7 | Course to steer: 158 °T Speed over the ground: 8.6 kn Time to the mark: 41 min | No. 811007 (worked solution) |
| 8 | Course to steer: 061 °T Speed over the ground: 8.1 kn Time to the mark: 23 min | No. 811008 (worked solution) |