Russia’s first fully domestically manufactured Superjet airliner successfully completed its inaugural test flight on Friday, as reported by the state defense and industrial conglomerate Rostec.

This flight follows previous test flights of the import-substituted Superjet prototype conducted in April and June, which demonstrated the reliable functioning of its domestically produced systems. According to Rostec, the project is now moving into the mass production stage.

The aircraft, now known as the SJ-100, has substituted “dozens” of foreign parts, including key components like the fuselage, flight control systems, and landing gear.

Rostec mentioned that the Yakovlev Production Center located in Komsomolsk-on-Amur is working on 24 SJ-100s, which are at “various stages of completion.” These jets are pending certification flights and approval from Russia’s civil aviation authority before they can be delivered.

The test flight on Friday lasted approximately one hour, reaching speeds close to 500 kilometers per hour (310 miles per hour) and an altitude of 3,000 meters (9,800 feet), according to Rostec.

The United Aircraft Corporation of Russia, which assumed control of the project last year due to prior production delays and safety issues, has stated that the SJ-100 will require 200 test flights to be completed by the end of 2025 before receiving certification for mass production.

This 100-seat regional jet is pivotal to Russia’s strategy of developing a domestic commercial aviation sector, particularly after Western sanctions limited its access to foreign technologies.