According to media reports, such drones are invisible to enemy radars. As the test showed, after the explosion, the striking elements cover a fairly large area, enough to damage even a large aircraft.
It was with the help of these cardboard drones that the SBU attacked the airfield in Kursk, Russia, on the night of August 27. They damaged four SU-30 and one MIG-29 aircraft. Among the targets damaged were S-300 radars and two Pantsir missile defense systems.