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Helicopter ÀÊ1-3 is designed according to the one-airscrew scheme with the rudder airscrew consists of skid-equipped landing gear, a tubular chassis, power-plant, main reducer, main rotor and braced tail beam with a rudder reducer and plumage and a power floor on which the cabin is installed. The cabin is made of composite materials.
The cabin of the helicopter provides free accommodation of two members of crew. The width of a cabin at a level of shoulders makes 1200 mm (at helicopter R.22 - 1055 mm). The big glazing area provides to crew the good review in all directions. Seats of pilots have an opportunity of adjustment on the ground, are equipped with waistband and humeral seat belts.
The pilotage-navigating equipment of the helicopter allows to flight in simple meteorological conditions in the daytime according to rules of visual flights. At the request of the customer the system of onboard navigation GPS can be installed on the helicopter. The system of onboard registration of parameters of flight is in a stage of development.
The airscrew consists of three blades with elastic fastening blades. Blades are made of composite materials and have on radius nonlinear blade twist and variable relative thickness of a structure.
The rudder airscrew consists of two blades with one general horizontal hinge. Blades of the rudder airscrew are made from composite materials.
In the helicopter the power-plant on the basis of the piston internal-combustion engine with liquid cooling ÅJ-25 "Subaru" is installed. The engine uses an automobile gasoline with fuel performance number 95.
Power from the engine is transmitted through a belt drive with overrunning clutch to a power shaft of the main reducer.
Control system is mechanical. Realization of control in channels of the general and cyclic step is rigid, in the traveling channel - mixed. The helicopter is equipped with a heating system and ventilation of a cabin with having blown of glazing that allows to flight in winter.
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