Print Email Humming TH-20 Specification: Length mm Height Main Rotor Dia mm Tail Rotor Dia Engine 19-25 Full Equipped Weight g Documents: TH-40 Specification: Length 1150 mm Height Main Rotor Dia 1180 mm Tail Rotor Dia Engine 40-45 Full Equipped Weight 3300 - 3400 g Documents:
