This is a TS-59 Low Profile Aileron Servo from Tower Hobbies.

FEATURES: Universal Connector Fits Futaba, Hitec, JR, KO Propo, Airtronics Z,
            and Tower Hobbies.
          One of the Shortest Proportional Servos Available
          High Torque for .60 size Models or .40 size Aerobatic Models
          Single Top Ball Bearing for Smooth, Precise Output Control
          Combination Metal/Resin Gear Train Provides Reliable Operation
          Watertight
          Surface Mount Technology (SMT) Allows this Servo to be More Reliable
            in High-Vibration Environments.

INCLUDES: One TS-59J servo
          One Small X-Shaped Servo Horn
          One Small I-Shaped Servo Horn
          One Mounting Hardware Bag

SPECS:    Speed:         .18 sec @ 60° (4.8V)  .14 sec @ 60° (6V)
          Output Torque: 61 oz-in (4.8V)  77 oz-in (6V)
          Weight:        1.2oz (34g)
          Dimensions: 1.7"L x .9"W x 1"H (43 x 23 x 25mm)
                                                                   jak 10/21/98
                                                                          ir/jl