Main Rotor Length : 520mm
Main Rotor Diameter: 1160mm
Tail Rotor Diameter : 249mm
Motor Drive Gear: (16T /17T)/1100KV (19T /20T)/910KV
Main Drive Gear : 143T
Autorotation Tail Drive Gear:121T
Drive Gear Ratio : 1:4:8.9
Weight (without battery): 1900g
Radio transmitter and Electronic equipment required for assembly:
Motor:4020 (910KV / 1100KV)
Transmitter: (7-channel or more, helicopter system)
Receiver: (7-channel or more)
Battery: 6S Li-Po 3500~4500mAh