Worksheet 49 · Skill 6
Course to steer
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You are at 022°T, 2.7 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.6 kn. The current sets 049°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 204°T, 2.3 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.9 kn. The current sets 185°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 359°T, 1.0 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.0 kn. The current sets 130°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 052°T, 3.5 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.2 kn. The current sets 295°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 081°T, 1.4 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 10.8 kn. The current sets 056°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 081°T, 1.6 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.8 kn. The current sets 359°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
You are at 053°T, 2.4 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.6 kn. The current sets 021°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 264°T, 2.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.5 kn. The current sets 337°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 119 °T Speed over the ground: 7.0 kn Time to the mark: 28 min | No. 49001 (worked solution) |
| 2 | Course to steer: 269 °T Speed over the ground: 11.3 kn Time to the mark: 11 min | No. 49002 (worked solution) |
| 3 | Course to steer: 266 °T Speed over the ground: 7.1 kn Time to the mark: 42 min | No. 49003 (worked solution) |
| 4 | Course to steer: 243 °T Speed over the ground: 6.9 kn Time to the mark: 56 min | No. 49004 (worked solution) |
| 5 | Course to steer: 007 °T Speed over the ground: 11.9 kn Time to the mark: 19 min | No. 49005 (worked solution) |
| 6 | Course to steer: 141 °T Speed over the ground: 7.2 kn Time to the mark: 26 min | No. 49006 (worked solution) |
| 7 | Course to steer: 109 °T Speed over the ground: 7.9 kn Time to the mark: 16 min | No. 49007 (worked solution) |
| 8 | Course to steer: 256 °T Speed over the ground: 10.8 kn Time to the mark: 14 min | No. 49008 (worked solution) |