The Electra was Lockheed's first all-metal and twin-engine design by Hall Hibbard. The prototype made its first flight on 23 February, 1934 with Marshall Headle at the controls.
In July 1937, aviatrix Amelia Earhart disappeared in a highly-modified Electra during an attempted round-the-world flight. Prior to the war, Guinea Airways in New Guinea and in Australia with MacRobertson Miller Airlines (MMA) operated Electras.
During World War II, the Electra was designated C-36B, later UC-36B.
Lockheed built a total of 149 Electras
The Electra was produced in several variants, for both civilian and military customers.