Worksheet 10 · Skill 6
Course to steer
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You are at 036°T, 3.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.9 kn. The current sets 036°T at 2.1 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 349°T, 2.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.9 kn. The current sets 115°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 043°T, 1.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.6 kn. The current sets 254°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 072°T, 2.7 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.1 kn. The current sets 229°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 266°T, 3.0 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.8 kn. The current sets 251°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
You are at 304°T, 1.5 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 11.5 kn. The current sets 037°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 357°T, 1.3 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 10.1 kn. The current sets 336°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 051°T, 3.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.6 kn. The current sets 241°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 133 °T Speed over the ground: 8.9 kn Time to the mark: 17 min | No. 10001 (worked solution) |
| 2 | Course to steer: 213 °T Speed over the ground: 5.9 kn Time to the mark: 43 min | No. 10002 (worked solution) |
| 3 | Course to steer: 104 °T Speed over the ground: 9.2 kn Time to the mark: 32 min | No. 10003 (worked solution) |
| 4 | Course to steer: 146 °T Speed over the ground: 10.6 kn Time to the mark: 17 min | No. 10004 (worked solution) |
| 5 | Course to steer: 168 °T Speed over the ground: 8.2 kn Time to the mark: 17 min | No. 10005 (worked solution) |
| 6 | Course to steer: 303 °T Speed over the ground: 11.5 kn Time to the mark: 25 min | No. 10006 (worked solution) |
| 7 | Course to steer: 098 °T Speed over the ground: 9.3 kn Time to the mark: 26 min | No. 10007 (worked solution) |
| 8 | Course to steer: 149 °T Speed over the ground: 5.8 kn Time to the mark: 44 min | No. 10008 (worked solution) |