After World War II, the Yugoslav aviation industry was reorganized with a central institution in charge of research and prototypes, with attached a few plants of lesser importance. This centrally located industry continues the lkarus name which was that of the first Yugoslav aviation company.
The factory of Novi Sad, as other aircraft factories in the country, were completely destroyed during the German occupation. The plant in Zemun was the most quickly rebuilt and it produced the Yugoslav military aircraft.
Among these, the 452M was designed by engineer Dragoljub Beslin, considered the prototype of a ground attack fast jet. The letter M (Mlazni) means jet powered. The power source consists of two Turboméca Palas arranged one above the other at the rear of the fuselage.
The top engine is fed with two side air inlets on each side of the fuselage, and the lower engine is supplied by entries in the leading edge of the wing root.
The wing is swept and supports two beams with two fins. The stabilizer joins the upper parts of both fins. The retractable tricycle undercarriage comprises two main wheels based on the fuselage and retracting into it. All undercarriage lower forward.
The aircraft made its first flight on 24 July 1954.
Engines: 2 x Turbomeca Palace 056A, 4.0 kN
Wingspan: 5.25 m (17 ft 12 in.)
Length: 5.97 m (19 ft. 7 in.)
Height: 1.77 m (5 ft. 9 in.)
Wing area: 11.20 sq.m
Empty weight: 1220 kg
Maximum take-off weight: 1680 kg
Max speed (est): 750 km.h. (466 m.p.h)
Min speed (est): 190 km.h. (118 m.p.h)
Cruising speed: 624 km / h
Range: 540 km
Ceiling: 9800 m
Endurance: 75 min.