Self made big gas heli
4-Blade direct controlled rigid
rotor head

Still Under construction !!!!
Specifications:
4-Blade main rotor
4-Blade tailrotor

Rotor diameter 3.25 M
Tail rotor diameter 0.6M
Engine:91cc Stihl   7.1 BHP
Weight:25Kg
Transmission : tooth belt (2 stage)
Tail drive:carbonshaft
Servo's: Seiko 68 Kg/cm
Avionics: Rotorspeed controller,separated power supply for reciever and servo's
Servo integrated Optocoupler signal separation for pwm signal
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