The Rogožarski IK-3 was a Yugoslav monoplane single-seat fighter. Its armament consisted of a hub-firing 20 mm autocannon and two fuselage-mounted synchronised machine guns. The prototype crashed during testing; twelve production aircraft had been delivered by July 1940. Six Ik-3s were serviceable when the Axis invasion of Yugoslavia began on 6 April 1941. All six were in service with the 51st Independent Fighter Group at Zemun near Belgrade. Pilots flying the IK -3 claimed 11 Axis aircraft were shot down during the 11-day war.
About Rogožarski IK-3 in brief
The Rogožarski IK-3 was a Yugoslav monoplane single-seat fighter. It was designed by Ljubomir Ilić, Kosta Sivčev and Slobodan Zrnić. Its armament consisted of a hub-firing 20 mm autocannon and two fuselage-mounted synchronised machine guns. The prototype crashed during testing; twelve production aircraft had been delivered by July 1940. Six Ik-3s were serviceable when the Axis invasion of Yugoslavia began on 6 April 1941. All six were in service with the 51st Independent Fighter Group at Zemun near Belgrade. Pilots flying the IK -3 claimed 11 Axis aircraft were shot down during the 11-day war. The design was the basis for the post-war Yugoslav-built Ikarus S-49 fighter. The aircraft was to be powered by a Hispano-Suiza 12Y29 engine, generating 980 hp at an altitude of 5,000 m. The designers favoured manoeuvrability over speed, trying to find a compromise between the German and British concepts of a modern monoplane fighter. In comparison to the Messerschmitt Bf 109E, the Yugoslav design had a shorter fuselage and smaller turning radius. It differed from British concepts in that its proposed armament was concentrated in the fuselage. The first flight of the prototype was carried out by the VVKJ towards the end of May 1938. The contract for the production of the prototypes was not signed until March 1937.
The company selected for construction was Rogošarski Darski A.K. A. Kraljevo, in Belgrade, Serbia. The Ikarus S-49 was the successor to the Ikarus IK -2 fighter, which was built in the late 1930s and early 1940s. It had a smaller wing area than the Hawker Hurricane and the Supermarine Spitfire, to achieve a higher speed for the fighter. Its design was not approved for approval by mid-1936, but a general reluctance to adopt new concepts delayed a new fighter design for a long time. The Ikarus S 49 was built by the Yugoslav State Aircraft Factory in KralJevo in the 1950s and 1960s, and was the first Yugoslav fighter to have a retractable undercarriage. It is the only Yugoslav fighter that survived the Second World War and was used by the Air Force of the Kingdom of Yugoslavia until the fall of the Iron Curtain in 1991. It has been identified as one of the most successful Yugoslav fighter aircraft of the 20th century, along with the Yugoslav Air Force and the VVKJ -built IK-1 and KK-2. The VVK-3 design was based on a strut-braced gull-wing monoplane armed with aHub-f firing 20-mm autoc Cannon and fuselage mounted synchronisation machine guns, and it was to have retractable landing gear. A scale model was tested in the Eiffel-built wind tunnel.
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