Worksheet 507 · Skill 6
Course to steer
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You are at 276°T, 3.3 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 11.5 kn. The current sets 213°T at 1.8 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 290°T, 3.8 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.1 kn. The current sets 255°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 016°T, 3.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.7 kn. The current sets 265°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, 1.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.0 kn. The current sets 000°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 347°T, 1.6 nm from Mill stack, bound for Green can "1". Your speed through the water is 10.3 kn. The current sets 026°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 286°T, 3.1 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.3 kn. The current sets 010°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 092°T, 2.1 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.3 kn. The current sets 256°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 033°T, 1.0 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.0 kn. The current sets 064°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 132 °T Speed over the ground: 11.9 kn Time to the mark: 13 min | No. 507001 (worked solution) |
| 2 | Course to steer: 145 °T Speed over the ground: 4.8 kn Time to the mark: 48 min | No. 507002 (worked solution) |
| 3 | Course to steer: 138 °T Speed over the ground: 6.7 kn Time to the mark: 53 min | No. 507003 (worked solution) |
| 4 | Course to steer: 268 °T Speed over the ground: 5.1 kn Time to the mark: 68 min | No. 507004 (worked solution) |
| 5 | Course to steer: 304 °T Speed over the ground: 10.9 kn Time to the mark: 12 min | No. 507005 (worked solution) |
| 6 | Course to steer: 158 °T Speed over the ground: 7.1 kn Time to the mark: 23 min | No. 507006 (worked solution) |
| 7 | Course to steer: 136 °T Speed over the ground: 7.0 kn Time to the mark: 21 min | No. 507007 (worked solution) |
| 8 | Course to steer: 026 °T Speed over the ground: 5.4 kn Time to the mark: 38 min | No. 507008 (worked solution) |