Worksheet 590 · Skill 6
Course to steer
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You are at 010°T, 2.8 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 6.1 kn. The current sets 037°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 076°T, 1.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.0 kn. The current sets 151°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 006°T, 2.1 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 8.5 kn. The current sets 318°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 029°T, 3.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.9 kn. The current sets 208°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 322°T, 1.5 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 8.8 kn. The current sets 055°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 340°T, 2.3 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 10.9 kn. The current sets 223°T at 1.3 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 180°T, 1.6 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.0 kn. The current sets 026°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
You are at 260°T, 2.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.2 kn. The current sets 254°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 053 °T Speed over the ground: 8.4 kn Time to the mark: 51 min | No. 590001 (worked solution) |
| 2 | Course to steer: 130 °T Speed over the ground: 7.3 kn Time to the mark: 27 min | No. 590002 (worked solution) |
| 3 | Course to steer: 080 °T Speed over the ground: 8.2 kn Time to the mark: 26 min | No. 590003 (worked solution) |
| 4 | Course to steer: 123 °T Speed over the ground: 11.2 kn Time to the mark: 28 min | No. 590004 (worked solution) |
| 5 | Course to steer: 301 °T Speed over the ground: 8.6 kn Time to the mark: 34 min | No. 590005 (worked solution) |
| 6 | Course to steer: 190 °T Speed over the ground: 12.0 kn Time to the mark: 19 min | No. 590006 (worked solution) |
| 7 | Course to steer: 060 °T Speed over the ground: 8.3 kn Time to the mark: 36 min | No. 590007 (worked solution) |
| 8 | Course to steer: 187 °T Speed over the ground: 10.2 kn Time to the mark: 16 min | No. 590008 (worked solution) |