An Air China Boeing 747-400M taking off at San Francisco International Airport (SFO).  A Nippon Cargo Airlines Boeing 747-400F is simultaneously landing.  See also <a href="//commons.wikimedia.org/wiki/File:NCA_Boeing_747-400F_arriving_at_SFO_3-31-09.JPG" title="File:NCA Boeing 747-400F arriving at SFO 3-31-09.JPG">File:NCA Boeing 747-400F arriving at SFO 3-31-09.JPG</a>.
<a href="//commons.wikimedia.org/wiki/User:BrokenSphere" title="User:BrokenSphere">BrokenSphere</a>
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<span class="int-own-work" lang="en">Own work</span>