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 plane was a counterpart of PZL.5 for a sportsplane and trainer, but was worse, and as a result, remained a prototype.
It won the contest for the new Polish military trainer, against the PZL-5bis and Bartel BM-4h biplanes.
PZL.37 Łoś | PZL P.11 | PZL P.6 | PZL P.24 | PZL.5 | PZL-101 Gawron | PZL | PZL TS-8 Bies | PZL TS-11 Iskra | PZL P.1 | PZL M28 | PZL M-2 | PZL Ł.2 | PZL-5 |
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
After receiving a degree in aeronautical engineering he worked as a junior designer in the National Aviation Works (Państwowe Zakłady Lotnicze) on the PZL.37 Łoś bomber project headed by Jerzy Dąbrowski and later for the RWD company on the RWD-25 low-wing, fixed-wheels fighter project.
PZL.37 Łoś, sometimes called the PZL P-37, a Polish Second World War medium bomber
Among the first tasks of newly created in 1928 PZL aircraft works was to design a modern fighter for the Polish Air Force.
The PZL P.24 was developed as an export version of the PZL P.11, a gull-wing all-metal fighter designed by Zygmunt Puławski.
The PZL-106 was developed as a modern agricultural aircraft for Poland and Comecon countries, to replace the less capable PZL-101 Gawron and aging PZL Antonov An-2.
The prototype was flown on 8 January 1932 in Warsaw by Bolesław Orliński (markings SP-AGY).
In terms of size, it was slightly larger than the Lockheed Model 10 Electra that Amelia Earhart used and was comparable to its predecessor, the PZL.37 Łoś.
Several hundreds of M-11D and M-11FR-1 variants were manufactured under license in the Polish WSK-Kalisz works in Kalisz.
In 1958, further development of the Yak-12M was carried out in Poland, becoming the PZL-101 Gawron.