Worksheet 136 · Skill 6
Course to steer
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You are at 090°T, 2.7 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 10.9 kn. The current sets 280°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 055°T, 2.8 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 10.4 kn. The current sets 086°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 341°T, 1.2 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 10.1 kn. The current sets 223°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 011°T, 2.7 nm from Mill stack, bound for Green can "1". Your speed through the water is 6.4 kn. The current sets 065°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 258°T, 3.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.0 kn. The current sets 099°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 051°T, 1.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.9 kn. The current sets 227°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 254°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.5 kn. The current sets 057°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 070°T, 2.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.8 kn. The current sets 179°T at 1.8 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: 127 °T Speed over the ground: 9.6 kn Time to the mark: 13 min | No. 136001 (worked solution) |
| 2 | Course to steer: 350 °T Speed over the ground: 10.4 kn Time to the mark: 13 min | No. 136002 (worked solution) |
| 3 | Course to steer: 063 °T Speed over the ground: 8.5 kn Time to the mark: 31 min | No. 136003 (worked solution) |
| 4 | Course to steer: 268 °T Speed over the ground: 4.3 kn Time to the mark: 33 min | No. 136004 (worked solution) |
| 5 | Course to steer: 198 °T Speed over the ground: 10.9 kn Time to the mark: 14 min | No. 136005 (worked solution) |
| 6 | Course to steer: 103 °T Speed over the ground: 10.9 kn Time to the mark: 25 min | No. 136006 (worked solution) |
| 7 | Course to steer: 257 °T Speed over the ground: 4.4 kn Time to the mark: 53 min | No. 136007 (worked solution) |
| 8 | Course to steer: 281 °T Speed over the ground: 5.7 kn Time to the mark: 77 min | No. 136008 (worked solution) |