1946. Burbank, California. Lockheed XR60 Constitution it is shown to the public for the first time

 

Largest Land Transport: Lockheed's XR60 Constitution built for the Navy, was shown to the public for the first time last week at Burbank, California. Span of 189 ft. and length of 156 ft. make the Constitution the largest transport landplane ever built in this country. It accommodates 180 passengers in two decks. Power is supplied by four Pratt & Whitney Wasp Major engines.

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Aviation Week | August 26, 1946