Worksheet 152 · Skill 6
Course to steer
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You are at 323°T, 2.9 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.7 kn. The current sets 059°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 274°T, 2.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.8 kn. The current sets 174°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 133°T, 3.0 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.3 kn. The current sets 057°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 080°T, 3.4 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.8 kn. The current sets 051°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 278°T, 2.6 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.9 kn. The current sets 291°T at 0.7 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 160°T, 1.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.3 kn. The current sets 310°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 149°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 7.7 kn. The current sets 083°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 261°T, 2.9 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.5 kn. The current sets 114°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: 213 °T Speed over the ground: 3.8 kn Time to the mark: 89 min | No. 152001 (worked solution) |
| 2 | Course to steer: 045 °T Speed over the ground: 11.0 kn Time to the mark: 32 min | No. 152002 (worked solution) |
| 3 | Course to steer: 261 °T Speed over the ground: 4.6 kn Time to the mark: 68 min | No. 152003 (worked solution) |
| 4 | Course to steer: 124 °T Speed over the ground: 12.5 kn Time to the mark: 12 min | No. 152004 (worked solution) |
| 5 | Course to steer: 153 °T Speed over the ground: 8.4 kn Time to the mark: 15 min | No. 152005 (worked solution) |
| 6 | Course to steer: 232 °T Speed over the ground: 11.0 kn Time to the mark: 24 min | No. 152006 (worked solution) |
| 7 | Course to steer: 292 °T Speed over the ground: 6.8 kn Time to the mark: 41 min | No. 152007 (worked solution) |
| 8 | Course to steer: 197 °T Speed over the ground: 11.1 kn Time to the mark: 11 min | No. 152008 (worked solution) |