In Everett, Wash., engineers design the 777X composite wing. 1940 B-25 Mitchell bomber The North American Aviation B-25 served in every theater of WWII and with every Allied air force as well as all branches of the U.S. military—9,817 were built. P-51 Mustang fighter North American Aviation’s P-51 Mustang, arguably the best fighter of World War II, introduced the laminar flow wing. 34
Frontiers July 2016 Issue
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