In this handout photo released by United Aircraft Corporation (UAC), the Russian Sukhoi Su-57 fighter jet equipped with the new fifth-generation engine dubbed "Product 177" lands during its first flight at the Zhukovsky airport outside Moscow, Russia. The flight proceeded as planned, the new engine performed reliably.

22.12.2025#9077883

In this handout photo released by United Aircraft Corporation (UAC), the Russian Sukhoi Su-57 fighter jet equipped with the new fifth-generation engine dubbed "Product 177" is seen on the runway during its first flight at the Zhukovsky airport outside Moscow, Russia. The flight proceeded as planned, the new engine performed reliably.

22.12.2025#9077882

In this handout photo released by United Aircraft Corporation (UAC), the Russian Sukhoi Su-57 fighter jet equipped with the new fifth-generation engine dubbed "Product 177" is seen on the runway during its first flight at the Zhukovsky airport outside Moscow, Russia. The flight proceeded as planned, the new engine performed reliably.

22.12.2025#9077881

In this handout photo released by United Aircraft Corporation (UAC), the Russian Sukhoi Su-57 fighter jet equipped with the new fifth-generation engine dubbed "Product 177" is seen during its first flight at the Zhukovsky airport outside Moscow, Russia. The flight proceeded as planned, the new engine performed reliably.

22.12.2025#9077880

In this handout photo released by United Aircraft Corporation (UAC), the Russian Sukhoi Su-57 fighter jet equipped with the new fifth-generation engine dubbed "Product 177" taxis on the runway during its first flight at the Zhukovsky airport outside Moscow, Russia. The flight proceeded as planned, the new engine performed reliably.

22.12.2025#9077879

In this handout photo released by United Aircraft Corporation (UAC), the Russian Sukhoi Su-57 fighter jet equipped with the new fifth-generation engine dubbed "Product 177" is seen on the runway during its first flight at the Zhukovsky airport outside Moscow, Russia. The flight proceeded as planned, the new engine performed reliably.

22.12.2025#9077878

In this handout photo released by United Aircraft Corporation (UAC), the Russian Sukhoi Su-57 fighter jet equipped with the new fifth-generation engine dubbed "Product 177" is seen during its first flight at the Zhukovsky airport outside Moscow, Russia. The flight proceeded as planned, the new engine performed reliably.

22.12.2025#9077877

In this handout photo released by United Aircraft Corporation (UAC), the Russian Sukhoi Su-57 fighter jet equipped with the new fifth-generation engine dubbed "Product 177" taxis on the runway during its first flight at the Zhukovsky airport outside Moscow, Russia. The flight proceeded as planned, the new engine performed reliably.

22.12.2025#9077876