Douglas DC-3, early beginnig of the 50s was the main type of passenger aircraft in domestic flights. This model, which successfully came out of the 2nd World War, became a cult in civil air transportation. A competitor and alternative was required for Douglas DC-3 aircraft. It was at this point that Convair appeared. Convair series; ConVair 240, ConVair 340, ConVair 440 aircrafts was designed and produced for the replacement of the Douglas DC-3. You can find more information about Fuselage and interior design of Convair 340. Since the Convair 340 model is the most remarkable model of the Convair series, we found it useful to elaborate this model.