In 1974, the Soviet Union created a special engine-design bureau, which in 1978, designed an engine designated as VAZ-311 fitted into a VAZ-2101 car. In 1980, the company commenced delivery of the VAZ-411 twin-rotor Wankel engine in VAZ-2106 and Lada cars, with about 200 being manufactured. Most of the production went to the security services. The next models were the VAZ-4132 and VAZ-415. A rotary version of the Samara was sold to Russian public from 1997. Aviadvigatel, the Soviet aircraft-engine design bureau, is known to have produced Wankel engines with electronic injection for fixed-wing aircraft and helicopters, though little specific information has surfaced.