Worksheet 644 · Skill 6
Course to steer
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You are at 310°T, 3.9 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.5 kn. The current sets 067°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 022°T, 2.6 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 5.4 kn. The current sets 002°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 081°T, 3.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.2 kn. The current sets 251°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 328°T, 2.6 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.5 kn. The current sets 256°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 052°T, 3.1 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 10.2 kn. The current sets 057°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 302°T, 2.4 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.5 kn. The current sets 240°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 076°T, 3.0 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 8.5 kn. The current sets 272°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 154°T, 1.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.1 kn. The current sets 158°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 190 °T Speed over the ground: 5.0 kn Time to the mark: 60 min | No. 644001 (worked solution) |
| 2 | Course to steer: 087 °T Speed over the ground: 5.5 kn Time to the mark: 30 min | No. 644002 (worked solution) |
| 3 | Course to steer: 109 °T Speed over the ground: 9.4 kn Time to the mark: 17 min | No. 644003 (worked solution) |
| 4 | Course to steer: 095 °T Speed over the ground: 5.2 kn Time to the mark: 63 min | No. 644004 (worked solution) |
| 5 | Course to steer: 157 °T Speed over the ground: 10.1 kn Time to the mark: 23 min | No. 644005 (worked solution) |
| 6 | Course to steer: 178 °T Speed over the ground: 8.0 kn Time to the mark: 29 min | No. 644006 (worked solution) |
| 7 | Course to steer: 354 °T Speed over the ground: 8.7 kn Time to the mark: 22 min | No. 644007 (worked solution) |
| 8 | Course to steer: 094 °T Speed over the ground: 10.1 kn Time to the mark: 19 min | No. 644008 (worked solution) |