روسیه در تلاش است تا Su-57 ناامیدکننده خود را به یک جت جنگنده شش نسل تبدیل کند.

Russia Is Trying to Make Its Disappointing Su-57 a Six-Gen Fighter Jet

While Russia claims its Su-57 is already one of the most advanced jets in operation anywhere, Western experts have their doubts.