 It was initially supposed to replace fighters in both pursuit and escort duties and light bombers (a popular idea at the time, which resulted in aircraft like the Bf 110).In an internal PZL competition a design of the engineer Franciszek Misztal won and was given the designation PZL.38 Wilk.Its construction used the diminished aerodynamic profile and configuration from the PZL.37 Łoś medium bomber.