Worksheet 163 · Skill 6
Course to steer
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You are at 174°T, 1.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 017°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 051°T, 1.6 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 9.9 kn. The current sets 354°T at 2.1 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 268°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.2 kn. The current sets 216°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 318°T, 1.9 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 12.0 kn. The current sets 072°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 066°T, 2.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.8 kn. The current sets 179°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
You are at 078°T, 2.9 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.9 kn. The current sets 085°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 358°T, 2.5 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 11.1 kn. The current sets 236°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 016°T, 2.6 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 11.0 kn. The current sets 119°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: 236 °T Speed over the ground: 10.0 kn Time to the mark: 25 min | No. 163001 (worked solution) |
| 2 | Course to steer: 096 °T Speed over the ground: 9.7 kn Time to the mark: 17 min | No. 163002 (worked solution) |
| 3 | Course to steer: 319 °T Speed over the ground: 5.1 kn Time to the mark: 25 min | No. 163003 (worked solution) |
| 4 | Course to steer: 095 °T Speed over the ground: 14.3 kn Time to the mark: 22 min | No. 163004 (worked solution) |
| 5 | Course to steer: 278 °T Speed over the ground: 11.7 kn Time to the mark: 30 min | No. 163005 (worked solution) |
| 6 | Course to steer: 168 °T Speed over the ground: 10.1 kn Time to the mark: 16 min | No. 163006 (worked solution) |
| 7 | Course to steer: 098 °T Speed over the ground: 9.6 kn Time to the mark: 27 min | No. 163007 (worked solution) |
| 8 | Course to steer: 035 °T Speed over the ground: 11.4 kn Time to the mark: 38 min | No. 163008 (worked solution) |