Simplified and more user friendly version of <a href="//commons.wikimedia.org/wiki/File:Mr3-flight-timeline-simple.png" title="File:Mr3-flight-timeline-simple.png">File:Mr3-flight-timeline-simple.png</a>
<a href="//commons.wikimedia.org/wiki/User:Soerfm" title="User:Soerfm">Soerfm</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>