This is the Futaba S3305 High Torque, Metal Gear Servo. per Futaba this servo is approved for use with NiCd batteries ONLY!

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.

FEATURES: Wide usage in cars and boats that require standard size, high torque servos (NOT FOR AIRPLANES).

Two ball bearings
3-pole motor
Standard Futaba J style connector
One year warranty

INCLUDES: One Futaba S3305 High Torque Metal Gear Servo with 1.5" (39mm) diameter horn, 1.2" (32mm) 6 point horn, 4 eyelets, 4 rubber grommets, and 4 mounting screws

SPECS: Length: 1.6" (40mm) not including mounting flanges

Length: 1.9" (49.5mm) at center of mounting flanges
Width: 0.8" (20mm) total
Width: 0.39" (10mm) at center of mounting flanges
Height: 1.5" (38mm) not including servo horn
Weight: 1.64oz (46.5g)
Speed: 0.25 sec/60° @ 4.8V 0.20 sec/60° @ 6V
Torque: 124 oz-in (8.9 kg-cm) at 6V 99 oz-in (7.1 kg-cm) at 4.8V