Russia Flies Two-Seat Version of Su-57 Felon Fighter (opex360.com)

• Two-seat Su-57 variant completes first flight
• Originated from India-Russia FGFA project, India withdrew 2018
• Su-57 operational in Ukraine conflict

"Russia has flown a two-seat variant of the Su-57 Felon fifth-generation fighter, a development that originated from the Indo-Russian FGFA program. India withdrew in 2018 due to delays and costs. The two-seat version may be used for training or enhanced combat roles. The Su-57 is Russia's only operational fifth-generation jet, used in Ukraine."