Futaba S3305 High Torque Servo

Futaba S3305 is a high torque analogue servo for general high torque applications. It can be used in almost all types of cars and boats but not for use in airplanes. Utilises metal gears. Futaba S3305 rated for use with Ni-Cad batteries only. Do not use any other types of power source.

Specifications:

Torque (4.8V): 99 oz-in (7.1 kg/cm) 
Speed (4.8V): 0.25 sec/60°
Torque (6.0V): 124 oz-in (8.9 kg/cm) 
Speed (6.0V): 0.20 sec/60°
Dimensions: 1-9/16 x 13/16 x 1-1/2 in (40 x 20 x 38 mm)
Weight: 1-11/16 oz (47 g)