Aerokopter AK1-3 is a light helicopter, which can be used for a range of practical purposes:
- monitoring facilities and territories;
- search missions;
- geological exploration, aerial photography;
- pilot technique learning and air crew training;
- aerial chemical work;
- business and pleasure flights;
- participating in aerial sports competitions.
Helicopter basic performance
under standard atmosphere conditions
Nos.
Parameter
Unit
Value
1
Maximum Takeoff Weight
kg
650
2
Maximum VNE, Indicated Airspeed
km/h
180
3
Maximum low-altitude level flight speed, Indicated Airspeed
km/h
180
4
Low-altitude cruise speed, Indicated Airspeed
km/h
160
5
Best range cruise speed, Indicated Airspeed
km/h
120
6
Maximum near-ground rate of climb at V= 85 km/h
m/s
8.5
7
Hover ceiling, OGE
m
1,300
8
Hover ceiling, IGE
m
2,320
9
Estimated service ceiling
m
3,000
10
Range, 10-liter fuel reserve
km
320
11
Endurance, 10-liter fuel reserve
hr
2.6
Helicopter general dimensional data
Nos.
Dimension
Unit
Value
General
1
Length, rotor blades turning
m
8.096
2
Height at rest
m
2.27
3
Width exclusive of blades
m
1.722
4
Skid gear tread
m
1.645
5
Cabin width at shoulder level
m
1.35
Main rotor
6
Diameter
m
6.84
7
Number of blades
-
3
8
Blade chord
m
0.17
9
Solidity ratio
-
0.0475
10
Airfoil
-
NACA 63A012
Tail (anti-torque) rotor
11
Diameter
m
1.29
12
Number of blades
-
2
13
Solidity ratio
-
0.1144
14
Blade chord
m
0.115
15
Airfoil
-
NACA 63A012
16
Distance between main rotor and tail rotor (centerline to centerline)
m
4.025
Tail unit
17
Horizontal stabilizer area
m2
0.15
18
Vertical stabilizer area
m2
0.267
19
Distance between main rotor and horizontal stabilizer
m
3.955
Airframe
The design of the airframe load-carrying structure of this lightweight helicopter differs essentially from regular airframes. The center section of the airframe is a tubular open frame carrying the cockpit, power plant, main rotor gearbox, landing gear and a strut-supported tail boom with horizontal and vertical stabilizers.
Cockpit
The cockpit encloses the crew area and contains the flight controls and instrument panel. The cockpit is formed by a floor section, a cockpit fairing, a belly fairing and doors. Large windows give an extensive all-round view.
