The PZL.23 Karaś was a Polish light bomber and reconnaissance aircraft designed in the mid-1930s by PZL in Warsaw.
The PZL.37 Łoś ('moose') was a Polish twin-engined medium bomber designed and manufactured by national aircraft company Państwowe Zakłady Lotnicze (PZL). It is sometimes incorrectly referred to as "PZL P.37", but the letter "P" was reserved for fighters of Zygmunt Puławski's design.
The LWS-6 Żubr was a twin-engined medium bomber designed and produced by the Polish aircraft manufacturer LWS. It was only produced in limited numbers and was used for training purposes as it proved to be inferior to the contemporary PZL.37 Łoś medium bomber.
The PZL P.11 is a Polish fighter aircraft, designed and produced in the early 1930s by Państwowe Zakłady Lotnicze. Possessing an all-metal structure, metal-covering, and high-mounted gull wing, the type held the distinction of being widely considered the most advanced fighter aircraft in the world at the time of its introduction into service.
The PZL P.7 was a Polish gull wing monoplane fighter aircraft designed in the early 1930s at the PZL factory in Warsaw. It was the main fighter of the Polish Air Force between 1933 and 1935. The PZL P.7 was replaced in Polish service by its follow-up design, the PZL P.11c. More than 30 PZL P.7 fighters remained in service during the Invasion of Poland, scoring several kills despite its obsolescence.
The PZL P.24 is a Polish fighter aircraft, built in the late 1930s by Państwowe Zakłady Lotnicze. It was a much more advanced development of the PZL P.11, a Polish wing all-metal fighter designed by Zygmunt Puławski.
The RWD-14 Czapla was a Polish army cooperation aircraft, designed in the mid-1930s by the RWD team, and produced in the LWS factory from 1938. A series of 65 aircraft were built and most were used by the Polish Air Force observation squadrons during World War II in 1939.
The LWS-3 Mewa ("Seagull") was a Polish observation and close reconnaissance aircraft, designed in the late-1930s by the LWS factory. It was ordered by the Polish Military Aviation, but did not manage to enter service before the outbreak of World War II.
PZL.46 Sum (sheatfish) was a light bomber developed by Państwowe Zakłady Lotnicze shortly before World War II, which, was directed to serial production in the spring of 1939. These planes were in production, but the Polish industry did not manage to produce them before the outbreak of the war.
PZL.50 Jastrząb (Hawk) was a Polish late 1930s fighter aircraft designed by Wsiewołod Jakimiuk at Państwowe Zakłady Lotnicze. The single-seat low-wing monoplane was to serve as a multi-purpose fighter and escort to replace all other fighters in the Polish Military Aviation. Designed after 1936, its prototype first flew in February 1939. By September, the first production aircraft were nearing completion, but further development was interrupted by the Nazi-Soviet Invasion of Poland.
The PWS-33 Wyżeł was a Polish twin-engined military trainer aircraft from a period before World War II constructed by Podlaska Wytwórnia Samolotów or PWS. Although destined for production it got no further than the prototypes before Poland was invaded.
The PZL P.6 was a Polish fighter, designed by the engineer Zygmunt Puławski, manufactured by PZL state-owned factory. It remained a prototype and did not go into production.
The PZL.43 was a Polish light bomber and reconnaissance aircraft designed in the mid-1930s by PZL in Warsaw. It was an export development of the PZL.23 Karaś. Its main user was the Bulgarian Airforce who called it the Chaika.
The PZL.48 Lampart (leopard) was a Polish heavy fighter-bomber design, that remained only a project, owing to the outbreak of World War II.
The PZL P.1 was a Polish fighter, designed by the engineer Zygmunt Puławski, manufactured by the PZL state-owned factory. It remained a prototype, but it was the first of the Polish PZL gull wing fighter series, leading to the PZL P.7, PZL P.11 and PZL P.24.
The PWS-1 was a Polish two-seat fighter and reconnaissance aircraft constructed by Podlaska Wytwórnia Samolotów (PWS) in 1927. It remained a prototype for its entire lifespan.
The PZL.49 Miś was a Polish twin-engined medium bomber design that remained only a project due to the outbreak of World War II. The PZL.49 was based on the contemporary PZL.37 Łoś and was to replace it at production lines at Państwowe Zakłady Lotnicze.
The PZL.3 was a Polish project of a four-engine heavy bomber, designed by Władysław Zalewski in 1928-1930 at Państwowe Zakłady Lotnicze.
The PZL.45 Sokół (falcon) was a Polish prototype fighter designed by PZL from 1936–1939. Work commenced on the aircraft in the late 1936 based on earlier light fighters.
P.Z.L. WS Foka was a family of Polish air-cooled V-engines of the late 1930s. The Foka A was an 8-cylinder engine initially designed by Stanisław Nowkuński for the modern P.Z.L. P.38 Wilk fighter-bomber and P.Z.L. P.39 fighter, it was to start a family of high-performance engines for other types of Polish warplanes as well. The initial series was to achieve roughly 450 hp (340 kW) of power and eventually reach 600 horsepower (450 kW).
