PWS-52
The PWS-52 was a Polish sports aircraft of 1930, a single-engine high-wing monoplane, constructed by the Podlaska Wytwórnia Samolotów (PWS), that remained a prototype. == Development == The aircraft was designed in 1929 by Zbysław Ciołkosz and Antoni Uszacki in the Podlaska Wytwórnia Samolotów, specifically to participate in the Challenge international touring aircraft contest (along with PWS-50, PWS-51 and PWS-8).