INNOVATION FULL ELECTRIC POWERED LIGHT HELICOPTER
TheVAI-2E is a new two-seat electric-powered light helicopter intended for amateur flights, training, air surveillance, etc.
The main feature of the VAI-2E is fully electric drive. The main rotor is powered by electric motor and the tail rotor is powered by individual smaller electric motor.
Electric motors usage allows to make a power unit without gearbox, free-running coupling, transmission shafts. Such power unit has smaller weight and overall dimensions, decreases power losses, decrease expenses for reduction gearbox and transmission service.
Modern high effective electric motors allow to get high capability and reliability. Modern batteries eventually improve, the capacity is increased, the weight and price decreases. Expected that in the near future electric motors and batteries will have high performances.
Electric power unit of VAI-2E helicopter consist of accumulator batteries, controllers, main and tail electric motors. The main electric motor is disposed at the fuselage top, on the main rotor shaft. Under the main electric motor is disposed batteries compartment. The smaller electric motor is disposed in the tail boom on the tail rotor shaft.
The helicopter fuselage is made of modern high-strength carbon composites and kevlar. Carbon composites usage also reduces helicopter weight. Main rotor blades and tail rotor blades are made of fiberglass.
All these innovations allow to have high performances at small expenses.
The crew accommodates side-by-side in the spacious cockpit, it allows to have good interaction.
The canopy made of transparent tinted acrylic panels provides excellent visibility.
The helicopter has a 3-legs wheeled landing gear with a tailwheelthat allows to landing with run. This feature is useful at autorotation landing.
|VAI-2E helicopter datas|
|CREW||1+1 (pilot + passenger)|
|Empty Weight||748 lbs||340 kg|
|Std Internal Gross Weight||1595 lbs||725 kg|
|External Gross Weight||1595 lbs||725 kg|
|Useful Load, Standard||500,5 lbs||227,5 kg|
1 x 180 hp / 132 kW – main motor
1 x 20 hp / 14,7 kW – tail motor
|power supply||Lithium high-capacity baterry|
|MAIN ROTOR||Composite structure|
|Main Rotor Diameter||24 ft||7,30 m|
|TAIL ROTOR||Composite structure|
|Tail Rotor Diameter||4,1 ft||1,25 m|
|VAI-2E helicopter datas|
|Total Length||27,5 ft||8,4 m|
|Fuselage Length||20,9 ft||6,37 m|
|Height||7,35 ft||2,24 m|
|Wheel base||13,77 ft||4,2 m|
|Cockpit dimensions||4.55 x 4 x 4,01 ft||1,38x1,22x1,25 m|
|V ne||120 kts||225 kmh|
|Max Cruise||95 kts||175 kmh|
|RANGE ATVLRC||81 nm||150km|
|MAXIMUM ENDURANCE||1,0 hrs|
|Best Rate of Climb||55 kts||102kph|
|Vy climb||1370 ft/min||7 m/s|
|Vy autorotation||1280 ft/min||6,5 m/s|
|Hover ceiling OGE||6640 ft||2050 m|
|Hover ceiling IGE||8430 ft||2570 m|