Worksheet 438 · Skill 6
Course to steer
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You are at 089°T, 1.2 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 8.8 kn. The current sets 130°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 115°T, 2.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.6 kn. The current sets 006°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 103°T, 2.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.8 kn. The current sets 331°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 290°T, 3.2 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.5 kn. The current sets 315°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 098°T, 1.1 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.0 kn. The current sets 269°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
You are at 236°T, 2.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.8 kn. The current sets 276°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 009°T, 1.6 nm from Mill stack, bound for Green can "1". Your speed through the water is 6.2 kn. The current sets 067°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 320°T, 1.8 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.5 kn. The current sets 320°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 111 °T Speed over the ground: 10.6 kn Time to the mark: 19 min | No. 438001 (worked solution) |
| 2 | Course to steer: 115 °T Speed over the ground: 7.2 kn Time to the mark: 19 min | No. 438002 (worked solution) |
| 3 | Course to steer: 008 °T Speed over the ground: 7.3 kn Time to the mark: 35 min | No. 438003 (worked solution) |
| 4 | Course to steer: 170 °T Speed over the ground: 4.4 kn Time to the mark: 49 min | No. 438004 (worked solution) |
| 5 | Course to steer: 036 °T Speed over the ground: 5.9 kn Time to the mark: 42 min | No. 438005 (worked solution) |
| 6 | Course to steer: 044 °T Speed over the ground: 7.3 kn Time to the mark: 55 min | No. 438006 (worked solution) |
| 7 | Course to steer: 292 °T Speed over the ground: 5.1 kn Time to the mark: 30 min | No. 438007 (worked solution) |
| 8 | Course to steer: 194 °T Speed over the ground: 5.8 kn Time to the mark: 44 min | No. 438008 (worked solution) |