The Iryda, originally known as the I-22, was designed to provide pilot, navigation, air combat, reconnaissance and ground attack training, with day/night and bad-weather capability. Four prototypes (c/n P01-01 to P01-04) were built, of which the first was used for static tests. Powered by two 2,425 lb (1,100 kg) s.t PZL Rzesz SO-3W22 non-afterburning turbojets, the first flew March 3, 1985 (crashed January 31, 1987).
These were followed by nine I-22 production aircraft (c/n 001-01 to 001-05, 002-01 to 002-04) and the first of these flew May 5, 1992. Three of these aircraft were developed into increased capacity versions:
C/n 001-01 was fitted with 3,307 lb (1,500 kg) s.t Instytut Lotnictwa
K-15 turbojets, redesignated M-92 and registered SP-PWD, it flew on December 22, 1992. Fitted SAGEM Maestro avionics, the aircraft was redesignated M-93S and first flew on May 22, 1994. Fitted with leading-edge wing slats, Fowler flaps, redesigned airbrakes and taller fin, it first flew December 21, 1996, in partial M-96 configuration.
C/n 001-02 was fitted with 3,307 lb (1,500 kg) s.t Rolls-Royce Viper 545 turbojets, redesignated M-93V and registered SP-PWE, it flew on April 25, 1994.
C/n 002-04 was also fitted with the K-15 turbojets, Martin-Baker seats, redesigned airbrakes, and modified avionics, systems and equipment. Redesignated M-93K and registered SP-PWF, it flew on July 6, 1994, and was followed by six M-93K production aircraft (c/n 003-1 to 003-06). The first was delivered in May 1995, as was SP-PWF, serialed 0204. The latter aircraft was subsequently converted to the full M-96 configuration, identical to c/n 001-01, but completed with Sextant Topflight avionics. Registered SP-PWG it was first flown on August 16, 1997.