Which Lockheed aircraft became Dwight D. Eisenhower’s first personal presidential transport in 1953?

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Mount Rushmore and Air Force One — Air Force One Air Force One, a Boeing 747 reserved for use by the president of the United States, flying over Mount Rushmore, South Dakota.

In 1953, President Dwight D. Eisenhower’s first personal presidential transport was a customized Lockheed C-121 Constellation, designated the VC-121E and christened the Columbine II.1