Worksheet 861 · Skill 6
Course to steer
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You are at 142°T, 1.1 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.4 kn. The current sets 184°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 294°T, 2.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.4 kn. The current sets 163°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 292°T, 4.1 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 10.7 kn. The current sets 066°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 055°T, 2.4 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.1 kn. The current sets 093°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 064°T, 1.8 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 7.9 kn. The current sets 270°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 348°T, 1.9 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 9.7 kn. The current sets 070°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 031°T, 2.2 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.5 kn. The current sets 350°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 070°T, 2.0 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.6 kn. The current sets 216°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 303 °T Speed over the ground: 5.9 kn Time to the mark: 46 min | No. 861001 (worked solution) |
| 2 | Course to steer: 208 °T Speed over the ground: 8.1 kn Time to the mark: 32 min | No. 861002 (worked solution) |
| 3 | Course to steer: 154 °T Speed over the ground: 10.9 kn Time to the mark: 21 min | No. 861003 (worked solution) |
| 4 | Course to steer: 121 °T Speed over the ground: 12.7 kn Time to the mark: 19 min | No. 861004 (worked solution) |
| 5 | Course to steer: 050 °T Speed over the ground: 7.2 kn Time to the mark: 25 min | No. 861005 (worked solution) |
| 6 | Course to steer: 103 °T Speed over the ground: 11.7 kn Time to the mark: 23 min | No. 861006 (worked solution) |
| 7 | Course to steer: 115 °T Speed over the ground: 4.8 kn Time to the mark: 36 min | No. 861007 (worked solution) |
| 8 | Course to steer: 103 °T Speed over the ground: 7.4 kn Time to the mark: 32 min | No. 861008 (worked solution) |