The PZL.44 Wicher was a prototype of 14-seat, twin-engine Polish airliner, built in the Państwowe Zakłady Lotnicze in 1938. It was to compete with the DC-2 and Lockheed Super Electra.

The PWS-24 was a Polish single-engine passenger aircraft for 4 passengers, built in PWS factory, used from 1933 to 1936 by LOT Polish Airlines. In spite of its limited capacity, it was the only series