Worksheet 150 · Skill 6
Course to steer
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You are at 128°T, 0.9 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.5 kn. The current sets 313°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 089°T, 1.8 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 11.5 kn. The current sets 006°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 324°T, 1.5 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 11.9 kn. The current sets 141°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 324°T, 2.9 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.2 kn. The current sets 069°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 245°T, 2.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.4 kn. The current sets 267°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 296°T, 1.1 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 8.6 kn. The current sets 092°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 009°T, 1.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.5 kn. The current sets 208°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 215°T, 2.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.7 kn. The current sets 002°T at 0.8 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: 266 °T Speed over the ground: 9.0 kn Time to the mark: 37 min | No. 150001 (worked solution) |
| 2 | Course to steer: 068 °T Speed over the ground: 12.6 kn Time to the mark: 12 min | No. 150002 (worked solution) |
| 3 | Course to steer: 079 °T Speed over the ground: 13.3 kn Time to the mark: 22 min | No. 150003 (worked solution) |
| 4 | Course to steer: 210 °T Speed over the ground: 7.6 kn Time to the mark: 45 min | No. 150004 (worked solution) |
| 5 | Course to steer: 280 °T Speed over the ground: 8.6 kn Time to the mark: 23 min | No. 150005 (worked solution) |
| 6 | Course to steer: 034 °T Speed over the ground: 9.8 kn Time to the mark: 28 min | No. 150006 (worked solution) |
| 7 | Course to steer: 114 °T Speed over the ground: 5.7 kn Time to the mark: 51 min | No. 150007 (worked solution) |
| 8 | Course to steer: 281 °T Speed over the ground: 6.9 kn Time to the mark: 37 min | No. 150008 (worked solution) |