S3107 Servo 1,2kg, 1.12sFutaba S3107 Analogue Micro Servo for Small Electric Motor Airplanes The S3107 servo is a micro servo for small electric motor airplanes. Pay special attention to the following points. The S3107 cannot be used with gasoline engine airplanes and with large middle gliders and other models that require torque. The use of a large load at a high power supply voltage will shorten the life. (4. 8V is recommended) The accessory servo horn is designed for use