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Extra Credit

Boeing was demonstrating its new Dash-80 airliner for the nation’s air transport executives in Seattle in August 1955 when test pilot Alvin “Tex” Johnston decided to impress them — instead of a simple flyover he performed a barrel roll:

In 1994, just before test pilot John Cashman undertook the maiden flight of the 777, Boeing president Phil Condit told him, “No rolls.”