J-22 (technical details)

The Orao is a twin-engine, turbojet, high-wing aircraft intended for performing tactical assault missions within the zone of the front and also in the enemy rear. It is manufactured in single-seater (J-22) and two-seater (NJ-22) versions and as a single-seater (IJ-22) and two-seater (INJ-22) reconnaissance plane, though the latter's engine does not have afterburning. The wing is trapezoidal, swept-back, low thickness ratio with pronounced strakes (hybrid wings). The propulsion system consists of two single-shaft Rolls-Royce turbojet engines in the Viper family. The engines are located side by side, in the rear section of the fuselage.

Following the Yugoslav aircraft industry's success in the 1970's with the G-2 Galeb [Sea Gull] and J-1 Jastreb [Hawk] airplanes, attention turned to designing a more up-to-date combat aircraft to replace the F-84 Thunderjet in supporting the fleet of Jastreb light assault planes. Romania, intending

The program called for a transonic twin-engine plane, intended for support of units at the front and for assault operations, that would be simple to operate and easy to maintain. A secondary role was envisaged as a fighter-interceptor in combating

helicopters, transport planes, and fighter-bombers. The series 600 Viper engines of Rolls-Royce were chosen for the power plant. to replace older models of the MiG-17, soon joined the new effort in 1970. The joint program was given the name YUROM (YUgoslavia-ROMania).

The prototypes took off for the first time, one in Yugoslavia and the other in Romania, on 31 October 1974. The Yugoslav aircraft was christened the Orao, while in Romania the plane was given the designation IAR-93. In series production the plane was designated the J-22, with NJ-22 for the two-seater version.

For self-defense of the aircraft the arsenal of weapons has been bolstered with short-range air-to-air missiles with infrared homing, which are installed on two new armament lines on the wingtips, each with a carrying capacity of 100 kg. The assortment of weapons has also been broadened with laser, antiradar, and antiship missiles and short-range air-to-air projectiles. Armament includes two twin-barrel GS-23L 23-mm cannon with 200 rounds each. The maximum weapon-carrying capacity is 2,800 kg.


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