In 1952, the Boeing board of directors decided to invest $16 million of company profits—two thirds of company net profits from the postwar years—into a prototype jet transport, the Model 367-80 or "Dash 80." The airplane featured then-revolutionary features such as jet engines and swept wings. It was a huge gamble, but it paid off. The Dash 80 became the prototype for both the KC-135 Stratotanker, the first jet aerial tanker, and the Model 707-120, the first in the long line of Boeing commercial jet airliners.