The Su-57 makes its first flight with a 5th-generation engine. Product 177

Create MindDecember 23, 2025 15:50

Russia's Su-57 has made its first test flight with the fifth-generation Product 177 engine, achieving 157 kN of thrust with afterburner engaged, reducing fuel consumption, increasing lifespan, and expanding the scope for modernization.

Russia's Su-57 fighter jet has completed its first test flight with the new fifth-generation engine, codenamed "Product 177." This is a significant step in the modernization of Russia's main combat-tactical aviation system and lays the foundation for further upgrades.

Tiêm kích Su-57 bay thử với động cơ thế hệ 5 mới của Nga

Overview of the Su-57 flight test program.

Test flights were conducted on the Su-57 platform in collaboration with the United Aircraft Corporation and the United Engine Corporation (UEC) of Russia. The aircraft was piloted by honorary test pilot Roman Kondratiev.

The first flight with the "Product 177" engine was successful, providing initial confirmation of the reliability of the new propulsion system. This is a crucial stage in the process of bringing the 5th generation engine into active service on the Su-57.

Product Engine 177: Designed for 5th Generation Aircraft

"Product 177" is an engine developed by UEC, specifically designed for fifth-generation aircraft systems. According to published information, the engine achieves a thrust of approximately 157 kilonewtons (kN) when afterburner is engaged. This is UEC's latest development for tactical-combat aviation.

The newly introduced engine boasts reduced fuel consumption and a longer service life. The engine's performance indicators have been improved thanks to the application of advanced technology and materials in its construction.

With its integration into the Su-57, "Product 177" is expected to improve flight characteristics and provide a technical foundation for further upgrades to the entire system in the future.

Combat capabilities and fifth-generation requirements of the Su-57

According to Rostec Corporation, the Su-57 has proven effective in combat conditions and meets the requirements for a fifth-generation fighter aircraft, including stealth technology. The introduction of the new engine to this platform comes as the program continues to be refined and modernized.

The Su-57 is described as a multi-role frontline aviation system capable of attacking targets in the air, on land, and at sea. The aircraft can operate continuously day and night, in adverse weather conditions as well as in environments with electronic jamming.

Thanks to the widespread application of stealth technologies, the Su-57 is designed to effectively counter enemy air defense systems. The new fifth-generation engines, with their improved performance, are one of the complementary elements in the overall solution package aimed at increasing survivability and combat flexibility.

Modernization, weapons and equipment on the Su-57

The modernization process of the Su-57 is ongoing, with an expansion of its weapons system and accompanying equipment. Previous information indicated that the Su-57 has incorporated several elements of a 6th-generation fighter jet.

From the very foundational development stage, the potential for modernization within a timeframe of approximately half a century was calculated. This indicates that the overall structure of the aviation complex was designed with sufficient room to accommodate future generations of sensors, weapons, and engines.

This complex is currently being delivered to military units, alongside the expansion of production lines and the testing of new configurations and equipment.

Production, export, and expansion of industrial capacity.

According to published information, the Su-57 is attracting interest from foreign customers, and deliveries for export have already begun. This indicates that the program is not only serving domestic needs but also targeting the international market.

The United Aircraft Corporation is expanding its production capacity, thereby increasing the number of aircraft supplied to the military and for export contracts. Integrating the new fifth-generation engines into the production line is a crucial step towards upgrading the Su-57's configuration in the next phase.

Technical significance and program prospects

The combination of the Su-57 airframe with stealth technology, multi-role capabilities, and the fifth-generation "Product 177" engine marks a significant advancement for this aviation system. The new engine, with approximately 157 kN of thrust when afterburner is engaged, lower fuel consumption, and a longer service life, is the focus of the current upgrade phase.

The successful first test flight confirmed the engine's reliability under operating conditions on a 5th-generation fighter jet, laying the groundwork for further testing and eventual widespread deployment.

With the Su-57 now confirmed to meet fifth-generation requirements and being deployed to the military as well as foreign customers, the "Product 177" engine plays a crucial role in solidifying this system's position in tactical aviation for decades to come.

According to TVzvezda.

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The Su-57 makes its first flight with a 5th-generation engine. Product 177
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