Futaba S3004 Standard BB Servo
This is the Futaba S3004 Light Weight, Ball Bearing Servo. This basic servo is used in cars, boats, or where standard servos are used. Note: This servo is not designed for use with glow-powered helicopters. This is a replacement for the following servos.(S15) This servo can produce high-current draw from your batteries. If using NiMH or LiPo batteries, make sure they are capable of delivering sufficient amps.