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THE GENERAL CHARACTERISTICS OF HELICOPTER ÀÊ1-3

The helicopter - the flying device is heavier than air with vertical rise and landing, elevating force in which is created by one or several revolving blades.


The helicopter flies up upwards without running and makes vertical landing without run, motionlessly "hangs" above one place, supposing turn around of a vertical axis in any direction, makes flight in any direction with speeds from zero up to maximal.

At the compelled stop of the engine in flight the helicopter can make planning descent and landing, using self-rotation (autorotation) of main rotor.

For an equilibration of the jet moment of the main rotor in a design of the helicopter ÀÊ1-3 the tail revolving blades are used..
Ñõåìà âåðòîëåòà ÀÊ1-3

The general characteristics

Crew

person

1-2

Engine

EJ-25 «Subaru»

Takeoff power

h.p./kWatt

156/115

Hour charge of fuel

l/h

28-35

The Basic geometrical characteristics

Length with rotating screws

m

8,09

Diameter ÍÂ

m

6,84

Height

m

2,22

Base of the chassis

m

1,6

Weight

Weight of the empty helicopter

kg

380

Maximum Takeoff Weight

kg

650

Take-off weight with one member of crew

kg

530

Standard stock of fuel

kg/l

60/72

The basic flight characteristics

Maximal speed of horizontal flight at the ground

km/h

186

Cruiser speed of flight at the ground

km/h

160

Static ceiling without taking into account influence of close of ground

m

1800

Practical ceiling

m

3000

Maximal speed of rise

m/s

9,2

Practical range ability

km

320

Duration of flight (height 100-500 m)

h

2,0

Maximum allowable speed of a wind at rise and landing

m/s

15,0


The general parameters of helicopter AK1-3 are not worse than the best samples of foreign helicopters of the given class have.

The operational range of heights and speeds of flight of the helicopter is limited to a practical ceiling of 3000 meters under a condition of absence of the oxygen equipment.

At flight weight of 530 kg (one pilot) the helicopter has good maneuverable characteristics under small speeds of flight. Realization of good maneuverable characteristics is provided by small loading on blowing area, high installed power, the small moments of inertia, and a sufficient reserve of control that enables its uses for flights on sports pilotage.