Worksheet 817 · Skill 6
Course to steer
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You are at 060°T, 3.0 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.1 kn. The current sets 198°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 155°T, 1.7 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.9 kn. The current sets 140°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 022°T, 3.2 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.8 kn. The current sets 003°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 265°T, 1.1 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.1 kn. The current sets 041°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 179°T, 1.8 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 9.6 kn. The current sets 101°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 254°T, 2.4 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.6 kn. The current sets 166°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 145°T, 1.1 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.1 kn. The current sets 062°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 055°T, 1.3 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.9 kn. The current sets 064°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 285 °T Speed over the ground: 6.6 kn Time to the mark: 55 min | No. 817001 (worked solution) |
| 2 | Course to steer: 090 °T Speed over the ground: 9.2 kn Time to the mark: 20 min | No. 817002 (worked solution) |
| 3 | Course to steer: 150 °T Speed over the ground: 5.1 kn Time to the mark: 63 min | No. 817003 (worked solution) |
| 4 | Course to steer: 261 °T Speed over the ground: 5.1 kn Time to the mark: 43 min | No. 817004 (worked solution) |
| 5 | Course to steer: 046 °T Speed over the ground: 10.5 kn Time to the mark: 29 min | No. 817005 (worked solution) |
| 6 | Course to steer: 041 °T Speed over the ground: 11.1 kn Time to the mark: 34 min | No. 817006 (worked solution) |
| 7 | Course to steer: 282 °T Speed over the ground: 6.7 kn Time to the mark: 40 min | No. 817007 (worked solution) |
| 8 | Course to steer: 119 °T Speed over the ground: 7.3 kn Time to the mark: 39 min | No. 817008 (worked solution) |