PZL P.11 WW2 fighter

PZL P.11 pre WW2 polish fighter.

The PZL P.11 was a Polish fighter aircraft, designed and constructed during the early 1930s by Warsaw aircraft company PZL. Possessing an all-metal structure, metal-covering, and high-mounted gull wing, the type held the distinction of being widely considered to have been the most advanced fighter aircraft of its kind in the world.
The design of the P.11 commenced during the late 1920s. While the majority of the world’s forces were still using biplanes, the P.11 used a high-mounted and aerodynamically clean gull wing, which provided the pilot with a superior field of view. The design quickly drew international attention; the general layout became commonly known as the “Polish wing” or “Puławski wing”.