PZL.50 Jastrzab
The PZL.50 Jastrząb (hawk) was a Polish pre-war fighter aircraft designed as a multi-purpose fighter to replace all other fighters in the Polish Air Force. Designed after 1936, the prototype first flew in February 1939. A further two prototypes were under construction by the time of the Invasion of Poland, but the fighter never entered mass production.
Italian Foreign Minister Count Galeazzo Ciano inspects the PZL.50 Jastrząb prototype in Warsaw February 1939 
PZL.50 Jastrząb 
PZL.50 Jastrząb 
PZL.50 Jastrząb 
PZL.50 Jastrząb