Production was ordered in the PWS (Podlaska Wytwórnia Samolotów - Podlasie Aircraft Factory).
In 1935, Antoni Uszacki of the PWS modified the design, fitting it with a Wright Whirlwind engine, produced under licence in Poland.
The new engine cowling was much longer than the previous Townend ring type, with a carburetor air intake below it.
They were not produced in larger numbers because a successful indigenous Polish advanced trainer, the PWS-26, using the same engine, was designed and entered production.
Data from Poser - PWS - Podlaska Wytwórnia Samolotów : PWS-50,[1] Polish Aircraft 1893–1939[2]General characteristics Performance Armament