Choroszy Modelbud D02 LWS 4 Zubr

The LWS-6 Żubr (other designations: LWS-4 or PZL.30 Żubr) was a Polish bomber from the interwar period and World War II. The machine was built in a high-wing configuration, it had a mixed structure and a classic layout - retractable in flight. The prototype flight took place in 1936. The drive was provided by two motors Bristol Pegasus VIII with 670 hp each. The deck armament consisted of five 7.9 mm machine guns. The machine could also carry bomb loads of up to 660 kilograms.

The LWS-6 Żubr was initially developed as a passenger plane for PLL Lot. However, when the construction of the prototype began, the Polish airline decided to purchase DC-2 machines. At that time, the management of the LWS plants decided to redesign the machine into a bomber, which would be a protection in the event of the failure of the PZL P.37 Łoś project, and the machine was characterized by a much more conservative design and was based on the Potez-54 bomber. The machine, at the time of entering service, was already obsolete and was clearly inferior to the PZL P.37, which was entering the line at that time. It also had very poor performance and unfortunately had numerous design flaws. This meant that it was almost immediately converted into a school and training machine. Aircraft of this type did not take part in the September campaign, and several of them were used by the Luftwaffe for training purposes after 1939. They served in this role until 1942.