Produced SL-90 Leshiy (first flown 1991) as patrol lightplane for forestry service, partly developed by Aviotechnica (joint Russian and Bulgarian company) and manufactured in 1992 (see also NPP Alpha-M); developed into current 1-1 two-seat lightplane (first flown 1992) for pleasure flying and various other roles including training, survey, and agriculture. I-3 is single-seat unlimited aerobatic monoplane (first flown 1993), easily converted into a tandem two-seater by use of an interchangeable modular cockpit unit (seeTechnoavia SP-91). See Technoavia for I-5 project development as SM-92 Finist, the latter which is also being developed by Interavia as 1-12.

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