The PZL P.1 was the first designed and built in Poland fighter from the year 1929., You served as a starting model for the types P.7 and P.11, which formed the backbone of the Polish fighter forces in the 1930s. The concept eventually led to the type P.24, which was exported to many Balkan countries. From the P.1 there were two prototypes.
The air forces of Poland possessed in the 1920s, about a hodge-podge of different aircraft types, mainly of French origin. Therefore, the Air Ministry issued a specification for the creation of a standard fighter. Zygmunt Puławski, design engineer at PZL, therefore, constructed in 1928 as a parallel design to PWS10 the P.1. This monoplane was provided with bent wings, which should allow a good view in the profile and in the thickness outwardly tapered and the pilot. These wings were the main feature of the P- series, and was internationally recognized as Puławski - wing (or wing Polish ) known. The scissor- running main rigid suspension with oil dampers was another indicator.
The first prototype P.1 / I received as driving a V12 engine Hispano Suiza 12Lb. The first flight took place in September 1929 by Captain Bolesław Orliński. In March 1930, the P.1/II followed with the same engine, but a modified radiator assembly and a modified rudder. The further development was canceled because it was favored by the Polish Air Force for future fighter aircraft driven by a radial engine. In the same month PWS10 completed flight testing and it was decided to produce these in series. Therefore Puławski developed the P.1 to P.6 and P.7 further.
The design of the P.1 with her Puławski - wing manufactured in the early 1930s, a stir at the exhibitions of the aviation industry. As soon as the P.1 emerged after the appearance in other countries designs, which incorporated this design feature.