English: In this 1974 NASA Flight Research Center photograph, a Boeing B-747 jetliner (NASA 905) is shown taking part in the trailing wake vortex study. In the photograph, the two wing tip vortex trails, being the strongest, stay in tight cylindrical rolls. The "strength" of the vortices decreases toward the midspan of each wing, and the trails become less defined.
The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2]
{{Information
|Description=In this 1974 NASA Flight Research Center photograph, a Boeing B-747 jetliner is shown taking part in the trailing wake vortex study. In the photograph, the two wing tip vortex trails, being the strongest, stay in tight cylindric
Captions
Add a one-line explanation of what this file represents
move approved by: User:Huntster This image was moved from File:ECN-4242.jpg == {{int:filedesc}} == {{Information |Description={{en|1=In this 1974 NASA Flight Research Center photograph, a Boeing B-747 jetliner (NASA 905) is shown taking part in
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):