CV-880 / TWAConvair CV 880 TWA airplane model. In April 1956, the Convair division of General Dynamics announced the production of a medium range jet transport. It was first called the Convair Skylark, and then the Golden Arrow. It was later changed to the Convair 600 in reference to its speed of 600 mph. The speed of 600 mph is equal to 880 feet per second, which led to the final name of Convair 880. The aircraft cruised at around . 87 Mach, much faster than