Ikarus 451
…Stršljen II single-seat aerobatics trainer. No member of the family was produced in any number. The 451, 451M, and J-451MM are all preserved at the Aeronautical Museum Belgrade. (Pionir – Pioneer) A small twin-engined prone-pilot research aircraft, powered by 2x 48 kW (65 hp) Walter Mikron III piston engines. (1 built…