Worksheet 620 · Skill 6
Course to steer
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You are at 220°T, 1.9 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.4 kn. The current sets 090°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 202°T, 1.1 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 12.0 kn. The current sets 209°T at 2.2 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 047°T, 2.5 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 9.3 kn. The current sets 195°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 009°T, 3.1 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.3 kn. The current sets 254°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 117°T, 0.8 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.1 kn. The current sets 273°T at 0.9 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
You are at 026°T, 1.5 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 10.2 kn. The current sets 013°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 089°T, 1.3 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.3 kn. The current sets 159°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 038°T, 2.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 10.5 kn. The current sets 026°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 248 °T Speed over the ground: 6.2 kn Time to the mark: 20 min | No. 620001 (worked solution) |
| 2 | Course to steer: 312 °T Speed over the ground: 11.7 kn Time to the mark: 19 min | No. 620002 (worked solution) |
| 3 | Course to steer: 086 °T Speed over the ground: 8.8 kn Time to the mark: 15 min | No. 620003 (worked solution) |
| 4 | Course to steer: 141 °T Speed over the ground: 6.1 kn Time to the mark: 59 min | No. 620004 (worked solution) |
| 5 | Course to steer: 027 °T Speed over the ground: 6.8 kn Time to the mark: 39 min | No. 620005 (worked solution) |
| 6 | Course to steer: 291 °T Speed over the ground: 10.3 kn Time to the mark: 36 min | No. 620006 (worked solution) |
| 7 | Course to steer: 091 °T Speed over the ground: 5.6 kn Time to the mark: 47 min | No. 620007 (worked solution) |
| 8 | Course to steer: 107 °T Speed over the ground: 10.9 kn Time to the mark: 15 min | No. 620008 (worked solution) |