He test-flew all PZL fighter prototypes, from the PZL P.1 designed by Zygmunt Puławski in 1928, through the PZL P.6, PZL P.7, PZL P.8, PZL P.11, PZL P.24 to PZL P.50
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Flying the PZL.5 he participated in the Challenge 1930 international touring planes contest, but failed to finish due to engine failure on 26 July.
The prototype was flown on 8 January 1932 in Warsaw by Bolesław Orliński (markings SP-AGY).
Bolesław V the Chaste | Bolesław Prus | Bolesław III Wrymouth | Bolesław I Chrobry | Bolesław Domański | Wojciech Orliński | Bolesław IV the Curly | Bolesław II the Generous | Bolesław Drobner | Bolesław Wysłouch | Bolesław Orliński | Bolesław III the Generous | Bolesław II | Bolesław Gebert |