The lack of tail rotor ensures increased load lifting capacity, higher OGE hover ceiling and ability to fly at the altitude of 5000m (16393ft) due to higher efficiency of the helicopter coaxial configuration and lower (by 10÷15 %) power plant loss.
Absence of interaction between individual helicopter control channels makes the piloting easier and simpler.
Shorter tail boom and absence of a tail rotor make the helicopter very compact that, combined with its good piloting qualities, makes the helicopter very maneuverable and allows to operate the helicopter from off-shore platforms and landing sites of limited dimensions; the whole helicopter fuselage including its tail section is within the limits of the main rotors diameter.
The helicopter can land and takeoffs from unprepared sites including sites overgrown with shrubs.
Absence of tail rotor eliminates the personnel injuries when the helicopter is on the ground.
Baseline Configuration:
Airframe:
• Fuselage with tail section
• Engine nacelle
• Two main landing gears
• Two nose landing gears
• Two ejectable cabin doors
• One transportation cabin door
• Two pilot seats
• Operator seat
• 13 seats in transportation cabin
Powerplant:
• Two engines TV#-117VMA Ser. 02
• Auxiliary power unit AI-9
• Main gearbox VR-252
• Two independent suction fuel systems with cross feed capability
• Engines and main gear box oil systems
• Powerplant fire protection system
• Vibration measuring system IV-79P-V2
Rotor System:
• Rotor mast D2B2000
• Set of upper rotor blades (3 blades)
• Set of lower rotor blades (3 blades)
Helicopter & Engine Controls:
• Helicopter control with PC-60F
• Hydraulic system
• Heating and ventilation system
• Anti-icing system
General Equipment:
• External sling load system
• Fire fighting system (miscellaneous)
• Emergency equipment (miscellaneous)
• Medical equipment
• Avionics (miscellaneous)
• Navigation equipment (miscellaneous)
• Emergency floatation device
• Dust protection
• Air intake protection
• Additional fuel tanks
• Skies
• Instrument flying blinds
