@SFOMuseum Twitter Posts This is SFO Museum's archive of the @SFOMuseum Twitter account.
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The twin-engine Boeing 247 was a revolutionary airliner when it entered into service with United Air Lines in 1933. Often hailed as the first modern airliner, it featured advancements like wing flaps, autopilot, and semi-retractable landing gear. #WingWednesday #avgeek . This tweet was posted on February 03, 2021.