 The coaxial rotor design provides a hovering ceiling of 4,000 m and vertical rate of climb of 10 m a second at an altitude of 2,500 m. The rotor blades are made from polymer materials.The coaxial-rotor configuration results in moments of inertia values relative to vertical and lateral axes between 1.5 and two times less than the values found in single-rotor helicopters with tail rotors.Absence of the tail rotor enables the helicopter to perform flat turns within the entire flight speed range.