Russian State Media has reported that Russia is planning to develop a Stealthy Attack Helicopter, Andrei shibitov, chief executive officer of the Russian Helicopter company said that “we are working on a concept of a 5th generation combat Helicopters which will be invisible to radars and will have good maneuverability to take on fighter aircraft in combat ” .
US Army with Boeing and Sikorsky had started similar program for development of a Stealthy helicopter code named RAH-66 Comanche, program was canceled in 2004 before it entered production. And only two prototypes were ever built, still Comanche had stealth design and internal weapons bay just like 5thgeneration fighter aircraft’s have in them.
Russian concept is still a concept and no funds have been sanctioned by Russian Defence ministry yet
