Worksheet 146 · Skill 6
Course to steer
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You are at 289°T, 1.4 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.3 kn. The current sets 055°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
You are at 067°T, 1.7 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.7 kn. The current sets 010°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 354°T, 1.6 nm from Mill stack, bound for Green can "3". Your speed through the water is 8.4 kn. The current sets 228°T at 1.7 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 090°T, 2.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.5 kn. The current sets 263°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 081°T, 2.1 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 10.0 kn. The current sets 296°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 130°T, 1.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.9 kn. The current sets 318°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 334°T, 1.8 nm from Heron Point Light, bound for Green can "1". Your speed through the water is 8.3 kn. The current sets 131°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 052°T, 1.8 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 8.0 kn. The current sets 104°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: 258 °T Speed over the ground: 5.4 kn Time to the mark: 39 min | No. 146001 (worked solution) |
| 2 | Course to steer: 111 °T Speed over the ground: 10.6 kn Time to the mark: 24 min | No. 146002 (worked solution) |
| 3 | Course to steer: 013 °T Speed over the ground: 7.1 kn Time to the mark: 26 min | No. 146003 (worked solution) |
| 4 | Course to steer: 063 °T Speed over the ground: 5.7 kn Time to the mark: 24 min | No. 146004 (worked solution) |
| 5 | Course to steer: 006 °T Speed over the ground: 10.3 kn Time to the mark: 20 min | No. 146005 (worked solution) |
| 6 | Course to steer: 104 °T Speed over the ground: 4.3 kn Time to the mark: 66 min | No. 146006 (worked solution) |
| 7 | Course to steer: 092 °T Speed over the ground: 8.9 kn Time to the mark: 17 min | No. 146007 (worked solution) |
| 8 | Course to steer: 009 °T Speed over the ground: 8.0 kn Time to the mark: 21 min | No. 146008 (worked solution) |