Polish Air Force (1 Viewer)

A couple more shots of Czapla. The plane was used also by the Romanian AF.
Source - different net sites.

Good stuff!

And a photo-supplement to PWS-26....source different net sites.

Also a short clarification... the name of the training plane was PWS-26 but not PWS-26 Slepak ( "Ślepak" in Polish). A few aircraft of the PWS-26 series was equipped with a foldable , fabric covered conopy of the rear learner's cockpit for trainings at IFR flights ( the second image). For this reason, these planes got the nickname "Ślepak" what can be translated in to English as "blind".
Additionally, Luftwaffe used a couple of captured PWS-26s

Interesting stuff!