The second production aircraft of Russia’s import-substituted SJ-100 regional passenger aircraft has achieved another significant manufacturing milestone, with the installation of domestically developed PD-8 turbofan engines. The aircraft is expected to undergo ground testing in the near future, which will serve as the next phase in the preparation of the aircraft for certification and eventual commercial deliveries.
The development underscores Russia’s efforts to replace foreign engines, avionics, and aircraft systems with domestically manufactured alternatives, thereby enabling the Superjet program to continue in spite of Western sanctions and restrictions on aerospace technology.
Second Production SJ-100 Receives Russian PD-8 Engines
During an SJ-100 supplier conference, Alexander Dolotovsky, the deputy managing director and director of the Regional Aircraft branch of Yakovlev, verified the installation. The PD-8 engines have been installed on the second production SJ-100, as reported by RIA Novosti, citing the United Aircraft Corporation (UAC). Ground testing is expected to commence in the immediate future.
The milestone brings the aircraft closer to the operational testing that is necessary prior to its entry into service. Engineers are anticipated to assess the integrated operation of the engines and aircraft systems through ground trials prior to the program’s completion of its remaining development and certification activities.
The second production aircraft is a critical indicator of advancement beyond the experimental stage. Nevertheless, the aircraft’s readiness for commercial operations is not automatically verified by the commencement of ground testing and the installation of the engine. Additional testing, certification, and production preparation are still necessary.
PD-8 Engine Becomes Central to the Programme
The PD-8 is a two-shaft turbofan engine that was developed in Russia and is intended for use in aircraft such as the SJ-100 and the Beriev Be-200 amphibious aircraft. It is suitable for the needs of these aircraft due to its nominal thrust class of approximately eight tons.
The engine was created by the United Engine Corporation (UEC), which is a subsidiary of the Rostec state corporation. It is based on Russian engineering, materials, and manufacturing technologies. It is strategically significant that the SaM146 engine, which was produced through a partnership between Safran of France and PowerJet of Russia, was used in the original Superjet.
The SaM146’s replacement with the PD-8 necessitates significantly more than the installation of a different engine. Engine performance, aircraft handling, flight-control integration, fuel consumption, vibration characteristics, and the behavior of associated systems must be verified by engineers throughout the aircraft’s operating envelope.
The SJ-100 program’s successful completion of engine testing is of paramount importance, as the domestic powerplant is one of the distinguishing characteristics that sets the new aircraft apart from previous Superjet versions.
Certification of Domestic Avionics and Flight-Control Systems
The engine is merely one component of the SJ-100’s import-substitution program. The aircraft also features Russian replacements for avionics, flight-control equipment, and other systems that were previously supplied by foreign manufacturers, such as Thales of France.
The replacement equipment’s reliability as an integrated system has been demonstrated through extensive testing in response to these modifications. Engineers have conducted approximately 1,500 tests over the course of three years, evaluating the aircraft’s systems under challenging operational and environmental conditions, as indicated by the information provided about the certification program.
Electronic equipment has been subjected to temperature testing at temperatures ranging from minus 55°C to plus 85°C. The trials have evaluated the systems’ capacity to withstand demanding conditions, resistance to extreme temperatures, and normal operation. Mechanical loads, lightning effects, and simulated equipment failures have also been incorporated into the more comprehensive testing effort.
The objective of the initiative is to demonstrate that components manufactured domestically can satisfy the safety and reliability standards of a commercial passenger aircraft. However, the final certification of the entire aircraft should not be confused with individual test results and completed test campaigns.
Flight testing extends beyond Russia
Additionally, the SJ-100 certification campaign has necessitated testing in various flight conditions, such as fog, poor visibility, night operations, and changing weather. To investigate the responses of aircraft to challenging circumstances, engineers have assessed maneuvers such as go-arounds and simulated engine failures.
In Belarus, satellite navigation and precision approaches have been the subject of testing, particularly in Minsk and Orsha. The project has involved the assessment of navigation efficacy using GPS and Russia’s GLONASS satellite-navigation system.
These trials are especially pertinent to the replacement of foreign flight control and navigation equipment. The aircraft must prove that its new systems can support the operational functions necessary for safe commercial service.
Consequently, the certification program has evolved into a thorough evaluation of the redesigned aircraft rather than a straightforward engine replacement exercise.
Certification and Deliveries Remain Key Milestones
Over 200 aircraft from the Superjet family have been manufactured since production commenced in 2008, when the original Superjet made its inaugural flight. The aircraft can accommodate approximately 75 to 110 passengers, depending on its configuration.
The SJ-100 program was created to reduce reliance on foreign suppliers and maintain the regional aircraft capability. The aircraft’s designation also reflects the program’s progression beyond its initial Sukhoi Superjet branding.
The Russian type certificate for the PD-8 engine was obtained in June 2026, following a comprehensive series of certification tests. Nevertheless, the engine’s certification does not automatically certify the aircraft in which it is installed. The SJ-100 is required to fulfill its own remaining certification requirements.
The delivery schedule has also undergone changes. Russian officials suggested in September 2026 that the initial production SJ-100 aircraft could be delivered to clients in the latter half of 2027, contingent upon the advancement of certification and production preparations.
A Significant Step, but Not the Finish Line
The installation of PD-8 engines on the second production SJ-100 is a tangible indicator that the program is transitioning from development to series production. It also provides an additional aircraft to facilitate the integration of the domestically developed powerplant with the redesigned airframe and onboard systems.
The main obstacle for Russia’s civil aviation industry is no longer just proving that a Superjet equipped domestically is capable of flight. It is to establish a production system that is reliable and capable of delivering certified aircraft with supportable onboard equipment and reliable engines.
The PD-8 installation on the second production SJ-100 is indicative of progress toward that objective. The successful completion of certification, manufacturing readiness, and the ongoing maturation of the aircraft’s domestic systems will determine whether the program meets its intended delivery schedule.