"It has its own secret": The Koshchey hexacopter made silent in flight
Developers from Aviron improved the drone's suspension for delivering water and provisions to soldiers
«Koschey»
«Baba Yaga» is no longer scary: Russian military found a solution against enemy drone
The "Perun", "Koshchei" and "Force" UAVs began to be used against the helicopter-type bomber