Futaba S3115 Micro High Torque Servo Compact  [S3115]

Futaba S3115 Micro Servo for Tight Installations

The Futaba S3115 Micro High Torque Servo is built to give accurate control in electric aircraft and small rotor machines. Its small footprint and sturdy nylon gearing make it a popular choice among hobbyists who need dependable actuation without extra bulk.

Optimised for Electric Aircraft

This micro servo suits lightweight electric models, balancing torque and speed with a rated 39 oz-in (2.8 kg/cm) at 4.8V and a speed of 0.15 sec/60 degrees. At 28 x 13 x 30mm and just 17g, it installs easily into cramped bays on sport and scale planes.

Reliable Nylon Gear Train

The S3115 uses nylon gears for smooth operation and good wear resistance under normal use. While durable for electric setups, avoid fitment in gas or very high power models where higher loads could shorten gear life.

For pilots fitting servos into small electric airframes, the Futaba S3115 balances compact size with usable torque and a proven nylon gear set.