A new photograph of the Russian T-50 has emerged, showing the aircraft in flight testing with the 'second stage' engine.
The new image shows another flight test with what will eventually become the standard engine for the Su-57 fighter jet. The 'second stage' engine is still under development and flight testing so far has focused on having the prototype powered by only one of the new engines.Продолжаются испытания нового двигателя. Т-50 Летающая лаборатория в ЛИИ им. Громова. @UAC_Russia pic.twitter.com/XMa9u1l4xD— Николай Краснов (@Nasok) May 17, 2018