According to Iranian official sources, the airplane is a modified version of the IrAn-140, which addresses some deficiencies of that design. According to pictures of the
prototype Simourgh, there have been some changes to the wings, tail and
fuselage compared to the IrAn-140 (the most notable difference being the cargo ramp added to the back of the aircraft). The first prototype of this aircraft was first unveiled on 19 May 2022 by Iranian official news. According to military officials the plane was in the
fast-taxi testing phase. On 29 April 2023, a picture was published that showed the prototype version doing the fast-taxi test on the runway. On 30 May 2023, Iranian Ministry Of Defense reported that the aircraft has successfully had its
first flight. In December 2024, the Simorgh aircraft participated in various flights at the Kish Airshow in the Persian Gulf, featuring a new paint scheme. On 29 October 2025, the Simourgh has completed 100 hours of flight time to get airworthiness certification from the Civil Aviation Organization (CAO). == Design ==