Worksheet 147 · Skill 6
Course to steer
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You are at 067°T, 2.5 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.3 kn. The current sets 117°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 039°T, 4.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.1 kn. The current sets 058°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 136°T, 1.8 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 8.8 kn. The current sets 203°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 019°T, 3.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.2 kn. The current sets 279°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 100°T, 1.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 8.6 kn. The current sets 019°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 196°T, 1.8 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.9 kn. The current sets 196°T at 1.2 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 069°T, 2.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 9.4 kn. The current sets 050°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 128°T, 1.4 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.1 kn. The current sets 072°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: 272 °T Speed over the ground: 7.4 kn Time to the mark: 47 min | No. 147001 (worked solution) |
| 2 | Course to steer: 167 °T Speed over the ground: 6.9 kn Time to the mark: 43 min | No. 147002 (worked solution) |
| 3 | Course to steer: 080 °T Speed over the ground: 7.9 kn Time to the mark: 23 min | No. 147003 (worked solution) |
| 4 | Course to steer: 143 °T Speed over the ground: 7.8 kn Time to the mark: 46 min | No. 147004 (worked solution) |
| 5 | Course to steer: 128 °T Speed over the ground: 8.1 kn Time to the mark: 23 min | No. 147005 (worked solution) |
| 6 | Course to steer: 304 °T Speed over the ground: 5.7 kn Time to the mark: 49 min | No. 147006 (worked solution) |
| 7 | Course to steer: 354 °T Speed over the ground: 10.4 kn Time to the mark: 17 min | No. 147007 (worked solution) |
| 8 | Course to steer: 270 °T Speed over the ground: 5.8 kn Time to the mark: 62 min | No. 147008 (worked solution) |