When Rockwell took over the Aero Commander company, they had no desire to continue production of the 1120 Jet Commander, as it competed directly with their own Sabreliner. Israeli Aircraft Industries acquired the rights to the Jet Commander and used it as the basis for the Westwind. They stretched the fuselage, increased the takeoff weight, and equipped it with more powerful engines. The aircraft was highly successful, remaining in production for 20 years, until IAI switched production to the Astra.