Russian unmanned helicopter cuts a dash

Eye Sky

Russia continues to impress the Independent Development Laboratory especially so.

In business since1996 with a short break in 2005 due to a lack of funds the team have 14 years of experience behind them and it shows. The  focus of their early years was the development of telemetry and high-speed data transmission systems. Since 1999 they have been working on development of  a unified, modular control system (on-board equipment and ground control stations) for unmanned craft.

 

Independent Development Laboratory staff

On the airborne side they off  a diverse stable of airframes and uses their own autopilot. The airframes that Indela produce cover the holy trinity of UAS, speed,endurace and VTOL. Twin turbine Berkut caught our eye and the unusual three point landing configuration of the Eye Sky is worth mention. Dynamic rollover is always an issue with helicopters. Will the tri foot arrangement reduce that?

Heres just some of the aircraft that INDELA produce, specifications from their website

Berkut :- Speed

 

Berkut
Engine Twin jet
Static thrust N 14-320 x 2
Motor speed rpm 32000-125000
Fuel consumption ml / min 240-1140
Exhaust gas velocity at the nozzle mph 1516
Basic geometric characteristics
Length mm 2384
Span mm 2800
Weighted data
Takeoff weight kg 42
Standard fuel ml 14000
The main flight characteristics
Speed range of horizontal flight mph 100-360
Cruising speed mph 220
Required thrust at cruise speed N 107
Takeoff speed mph 91.8
Landing speed on the glide path flap mph 111
The vertical velocity at landing m / 6.5
Speed Touch mph 82
Flight altitude range m 50-5000
Practical range km 140
Flight duration minute 40

6M :- Endurance

6M
Engine two-stroke two-cylinder reciprocating internal combustion
Static thrust N 161
Volume cc 56
Motor speed rpm 1400-8500
Engine power KW 4.0
All fuel economy on V. l / h 0.68
The parachute recovery system, designed for emergency landing
Max. (Barometric) altitude operation of the parachute system m 3000
Maximum input speed parachute m / 50
Minimum typing speed parachute m / 15
Min.vysota parachute deployment above the landing site m 100
Barometric height of the landing pad above sea level m to 2000
Basic geometric characteristics
Length mm 2693
Span mm 6042
Wing loading g / dm ² 235
Weighted data
Takeoff weight kg 30
Standard fuel l 4.8
The main flight characteristics
Speed range of horizontal flight mph 65-140
High speed mph 140
Cruising speed mph 80
Takeoff speed mph 67
Landing speed on the glide path flap mph 75
Quality airframe 13.63
The vertical velocity at landing m / 5
Speed Touch mph 60
Flight altitude range m 50-3000
Practical range km 440
Flight duration h 5.5

Eye Sky :- VTOL

Eye Sky
Engine four-stroke two-cylinder water-cooled dry sump
Takeoff power kW 20.2
Fuel consumption per hour l / h 5
Basic geometric characteristics
Length with rotating propellers mm 3754
Length mm 2818
Diameter HB mm 3070
Height mm 1150
Base chassis mm 1100
Weighted data
Maximum takeoff weight kg 140
Weight kg 80
Standard fuel l 45
The main flight characteristics
The maximum level flight speed at sea level mph 90
Cruising speed at ground mph 60
Hovering ceiling without the influence of ground proximity m 1500
Ceiling m 3000
Maximum rate of climb m / 2
Practical range km 480
The duration of the flight (altitude 100-500 m) h 8
Maximum wind speed during takeoff and landing m / 7.0