Czech republic ● Aero Vodochody ● Moravan Aviation ● Aircraft Industries ● Avia Propeller ● Evektor ● Ministerstvo obrany - AČR, LOM Poland ● EADS PZL Varšava ● PZL Mielec ● PZL Swidnik ● WZL NR 3 Russia ● Kamov ● Berjev ● Tupolev