This is something different than others.
It is about small less known Yugoslav fighter named Ikarus IK-3. Also known als Defender of Belgrade. They were produced to late to stopped German invasion on 6th april 1941. YRAF (Yugoslav Rojal Air Force JKRV-Jugoslovensko kraljevsko ratno vazduhoplovstvo) was get small number of those magnificient fighters which was destroyed every of them during april war. Brave yugoslav pilots shot down several german planes and IK-3 was write with golden letters in serbian history.