Development is based on extensive use of advanced technologies tested to ensure high performance and reduce operating costs. A full-scale mockup of the helicopter was first built to optimize the layout of technological, operational, and ergonomic features. A wind tunnel model TsAGI was created to test flight characteristics and improve aerodynamic airframe layout. Laboratories tested the air intakes' dust device to improve efficiency. A model of the Ka-115 was presented at the aerospace show MAKS-95 in Zhukovsky. Prototype's first flight was 1999 and the aircraft is in production.
The basic Ka-115 is powered by a Pratt & Whitney Canada/Klimov PW206K/2 engine that drives a coaxial rotor system, equipped with rotor de-icing. The Ka-115 features a large five-door cabin with large windows and a skid undercarriage. The cabin is fitted with vibration and noise suppression, heating and ventilation systems, and comfortable shock-absorbing crew and passenger seats.