Worksheet 787 · Skill 6
Course to steer
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You are at 044°T, 3.2 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.1 kn. The current sets 279°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 014°T, 2.0 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 8.9 kn. The current sets 182°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 073°T, 3.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.8 kn. The current sets 218°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 357°T, 1.7 nm from Mill stack, bound for Red nun "2". Your speed through the water is 9.9 kn. The current sets 081°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 053°T, 2.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.6 kn. The current sets 140°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 312°T, 2.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.1 kn. The current sets 050°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 173°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.4 kn. The current sets 044°T at 1.6 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 008°T, 2.5 nm from Mill stack, bound for Green can "3". Your speed through the water is 7.0 kn. The current sets 261°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 115 °T Speed over the ground: 4.0 kn Time to the mark: 31 min | No. 787001 (worked solution) |
| 2 | Course to steer: 064 °T Speed over the ground: 8.3 kn Time to the mark: 24 min | No. 787002 (worked solution) |
| 3 | Course to steer: 164 °T Speed over the ground: 10.6 kn Time to the mark: 17 min | No. 787003 (worked solution) |
| 4 | Course to steer: 321 °T Speed over the ground: 9.1 kn Time to the mark: 15 min | No. 787004 (worked solution) |
| 5 | Course to steer: 357 °T Speed over the ground: 5.6 kn Time to the mark: 25 min | No. 787005 (worked solution) |
| 6 | Course to steer: 214 °T Speed over the ground: 3.3 kn Time to the mark: 89 min | No. 787006 (worked solution) |
| 7 | Course to steer: 292 °T Speed over the ground: 7.9 kn Time to the mark: 33 min | No. 787007 (worked solution) |
| 8 | Course to steer: 014 °T Speed over the ground: 6.4 kn Time to the mark: 20 min | No. 787008 (worked solution) |