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.
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 | Odds & Sods – Mis-takes & Out-takes | Mis Ladrillos | Mis adorables vecinos | MIS | Cariño De Mis Cariños |
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.
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
The plane was a counterpart of PZL.5 for a sportsplane and trainer, but was worse, and as a result, remained a prototype.
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).
It won the contest for the new Polish military trainer, against the PZL-5bis and Bartel BM-4h biplanes.
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.