Construction of this helicopter was similar to 1-EA and 3-EA, but the main rotor was radically redesigned (by I.P.Bratukhin). It became a combination of two 3-blade rotors of different diameters: the bigger one had fixed blades, the smaller one was used for aircraft control. Large rotor blades could change pitch all together to provide vertical evaluations. Smaller rotor was the fully instrumented one.
|Modified March 26, 1997||Back to|