Futaba S9152 Digital Mega High Torque ServoFEATURES:This is the Futaba S9152 Mega High Torque Digital Rudder Servo. Comes with "J" Connector Pre-Installed.Heavy duty wiring handles higher current loads New metal center casing helps dissipate heat and is designed to be water and dust resistant Coreless motor High Torque One year warrantyINCLUDES:One Futaba S9152 Digital Rudder Servo Two rectangular grommets Four brass bushings Four 3mm x 15mm self tapping phillips head mounting screws One 1.2" (30mm) diameter round horn One 3.5" (88mm) diameter star shaped six point horn One 3.9" (98mm) diameter four point horn Metal and nylon gearsSPECS:Speed: .24 sec/60° @ 4.8V, .19 sec/60° @ 6.0VTorque: 222 oz-in @ 4.8V, 278 oz-in @ 6VWeight: 3oz (85g)Length: 1.91" (48.6mm) case onlyLength: 2.54" (64.6mm) including mounting tabsWidth: .99" (25.2mm)Height: 1.56" (39.7mm)Output Shaft Diameter: 8mmDistance between mounting hole centers same side: .55" (14mm)Distance between mounting hole centers opposite side: 2.35" (59.6mm)COMMENTS:S9152 Digital Servo Precautions, -It is best to avoid long leads and Y-harnesses especially with standard grade wires. If problems are encountered, consider using heavy duty wire such as Futaba's Heavy Duty Series or Hobbico's Pro Series,minimizing lead lengths, and/or removing Y-harnesses. -Current Drain: Futaba S9152 Servo is Specially Designed for High- Torque and High-Speed, Therefore Very High Current Drain Is Normal At Startup. For Ultimate Performance When Using This Servo Please Review The Following Points. (1) When Using Systems With the Battery Fail Safe Function it Has a Higher Cut-Off Voltage Setting Which Will Cause Shorter Operation Time. (2) When Installing the Servo Please Check Pushrod Linkage To Make Sure There Is No Binding in Order To Prevent Excessive Power Consumption and Decrease the Life of the Motor and Battery. This digital servo cannot be used with the following * AM * transmitters as the servo neutral signal is: 1310us). CONQUEST AM, FG Series (T4FG, T5FGK,T6FG, T6FGK, T7FGK), New Terratop, T3EGX, T3PGE, T2NL, T2LGX, T2FR, T2PK series.**** Otherwise they will work fine with current AM systems *****