Boeing B-17Es under construction. This is the first released wartime production photograph of Flying Fortress heavy bombers at one of the Boeing plants, at Seattle, Wash. 
<ul><li>Boeing exceeded its accelerated delivery schedules by 70 percent for the month of December 1942.</li></ul>
U.S. Air Force.
circa 1942 <div style="display: none;">date QS:P,+1942-00-00T00:00:00Z/9,P1480,Q5727902</div>
<a rel="nofollow" class="external free" href="https://media.defense.gov/2006/Jun/01/2000554840/-1/-1/0/060515-F-1234S-029.JPG">https://media.defense.gov/2006/Jun/01/2000554840/-1/-1/0/060515-F-1234S-029.JPG</a> at <a rel="nofollow" class="external text" href="https://www.nationalmuseum.af.mil/Upcoming/Photos/igphoto/2000554840/">gallery page</a>. U.S. Air Force photo, Transferred from <span class="plainlinks"><a class="external text" href="https://en.wikipedia.org">en.wikipedia</a></span> to Commons by <a href="//commons.wikimedia.org/wiki/User:Sreejithk2000" title="User:Sreejithk2000">Sreejithk2000</a> using <a href="https://iw.toolforge.org/commonshelper/" class="extiw" title="toollabs:commonshelper/">CommonsHelper</a>.