Worksheet 168 · Skill 6
Course to steer
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You are at 053°T, 2.9 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.2 kn. The current sets 264°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 040°T, 2.7 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.8 kn. The current sets 196°T at 1.1 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 014°T, 2.8 nm from Mill stack, bound for Green can "1". Your speed through the water is 7.5 kn. The current sets 304°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 313°T, 1.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.7 kn. The current sets 255°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 044°T, 1.2 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 6.8 kn. The current sets 173°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 332°T, 1.3 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 11.2 kn. The current sets 190°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 110°T, 1.8 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 9.9 kn. The current sets 298°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 019°T, 1.1 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.3 kn. The current sets 056°T at 1.0 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: 003 °T Speed over the ground: 11.1 kn Time to the mark: 11 min | No. 168001 (worked solution) |
| 2 | Course to steer: 116 °T Speed over the ground: 8.1 kn Time to the mark: 35 min | No. 168002 (worked solution) |
| 3 | Course to steer: 271 °T Speed over the ground: 9.7 kn Time to the mark: 16 min | No. 168003 (worked solution) |
| 4 | Course to steer: 198 °T Speed over the ground: 8.9 kn Time to the mark: 27 min | No. 168004 (worked solution) |
| 5 | Course to steer: 037 °T Speed over the ground: 5.3 kn Time to the mark: 40 min | No. 168005 (worked solution) |
| 6 | Course to steer: 063 °T Speed over the ground: 9.9 kn Time to the mark: 19 min | No. 168006 (worked solution) |
| 7 | Course to steer: 244 °T Speed over the ground: 10.5 kn Time to the mark: 29 min | No. 168007 (worked solution) |
| 8 | Course to steer: 030 °T Speed over the ground: 7.2 kn Time to the mark: 28 min | No. 168008 (worked solution) |