Worksheet 875 · Skill 6
Course to steer
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You are at 167°T, 1.4 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.5 kn. The current sets 174°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 120°T, 1.6 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.4 kn. The current sets 336°T at 1.1 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 006°T, 2.9 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 7.7 kn. The current sets 033°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 072°T, 2.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.1 kn. The current sets 124°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 047°T, 2.3 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.8 kn. The current sets 145°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 073°T, 2.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 11.9 kn. The current sets 345°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 122°T, 2.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.5 kn. The current sets 166°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 157°T, 1.8 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.3 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 017 °T Speed over the ground: 10.0 kn Time to the mark: 33 min | No. 875001 (worked solution) |
| 2 | Course to steer: 122 °T Speed over the ground: 7.5 kn Time to the mark: 21 min | No. 875002 (worked solution) |
| 3 | Course to steer: 054 °T Speed over the ground: 9.5 kn Time to the mark: 45 min | No. 875003 (worked solution) |
| 4 | Course to steer: 284 °T Speed over the ground: 3.2 kn Time to the mark: 112 min | No. 875004 (worked solution) |
| 5 | Course to steer: 111 °T Speed over the ground: 9.5 kn Time to the mark: 28 min | No. 875005 (worked solution) |
| 6 | Course to steer: 141 °T Speed over the ground: 10.3 kn Time to the mark: 17 min | No. 875006 (worked solution) |
| 7 | Course to steer: 070 °T Speed over the ground: 8.5 kn Time to the mark: 27 min | No. 875007 (worked solution) |
| 8 | Course to steer: 062 °T Speed over the ground: 4.0 kn Time to the mark: 54 min | No. 875008 (worked solution) |