This CSRC-311 sport servo provides the novice modeler all the performance and reliability you would expect to find in a more expensive servo.

Specs
Weight: 1.41 oz.
Speed (4.8V/6.0V): 0.20 / 0.18 sec @ 60 deg.
Torque oz./in. (4.8V/6.0V): 44.1 / 57.8
Dimensions: 39.4mm x 20.1mm x 48.0mm