Kresta helicopter handling used a moving hangar floor

How did Kresta-class ships move a helicopter between the flight deck and hangar in difficult sea conditions?

The coaxial rotor reduced some wind problems, and the helicopter stayed on a platform that doubled as the hangar floor and moved vertically because there was no room for a separate lift.

The Soviet system can be compared with Canadian Beartrap and US Navy helicopter-handling arrangements, while a coaxial rotor reduces some wind-direction problems. The ship lacked room for both a separate elevator and a fixed hangar floor. The helicopter therefore remained on the moving platform as the entire hangar floor descended, revealing how tightly the aviation facility was packaged.