In 1957 the company began to develop the L-200 Morava light utility aircraft and four years later the Z-37 Cmelak agricultural aircraft, which were both a commercial success.
License-built in Poland by the state-owned Państwowe Zakłady Inżynieryjne (as the PZInż. Major 4), the engine was used in, among others, Zlin Z-XIII, RWD-11 and one of the PWS-35 Ogar prototypes.