on february 22, 1950, twa signed a contract with the glenn l. martin company for 12 martin 2-0-2s and 30 martin 4-0-4s. the first plane was delivered on july 14, 1950. twa's martin fleet was eventually increased to 53 planes, and they remained operational until 1961. on may 17, 1950, the airline officially changed its name to trans world airlines. on december 5, 1950, twa ordered 10 lockheed l-1049 super constellations, which were delivered in 1952. on october 19, 1953, twa offered nonstop transcontinental service.