Douglas DC-3

Airstair with four step into the interior of the aircraft.

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The Douglas DC-3 was one of the most successful airliners in history. The aircraft's efficiency, speed, and safety popularized air travel. It was the first airliner able to profit only from carrying passengers. Featured in this image is the airstair of a Douglas DC-3 that flew more than 56,700 hours with Eastern Air Lines.

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