سروو موتور Gear Servo MG90s دنده تمام فلز سروو موتور ۹کیلویی بسیار کم مصرف و سبک hard hits and are fairly accurate Perfect flap servos If you have a sailplane and need great flap servos buy them  Features Light weight high strength nylon casing Recommended for 200450 size helicopters or light weight aircraft Different servo horns included for different application  Specification Dimensions 228 x 122 x 285mm Operating Speed 48V no load 01sec  60 degrees Operating Speed 6V no load 008sec  60 degrees Stall Torque 48V 18 kg  cm Stall Torque 6V 22 kg  cm Temperature Range 30 to 60 Degree C Dead Band Width 5usec Operating Voltage 48  60 Volts Weight 134g