Futaba S9551 Servo Low Profile Dgtl Hi Speed/Torque

This is the S9551 High Torque Low Profile Digital Servo w/Coreless Motor   
                         for Aircraft and Car Use.                            
                                                                              
FEATURES: Digitally enhanced microprocessor cuts about half of the response   
            time from transmitter input to servo reaction                     
          Low profile allows for the servo to fit into wings and lie down     
            in car chassis for less obstruction                               
          Coreless motor                                                      
          Metal gears                                                         
          Dual ball-bearings                                                  
          Black plastic case                                                  
          Dust and water resistant (not waterproof)                           
          One year limited warranty                                           
          Ideal for F3A aileron application and 1/10 scale electric touring car
                                                                              
INCLUDES: One S9551 Digital Low Profile Servo with 0.83" (21mm) diameter round
            horn, 1.7" (44mm) long T-shaped horn, four eylets, two rubber     
            gromments (order FUTM2250 if mounting screws are needed)          
                                                                              
SPECS:    Speed:  0.14 sec/60° @ 4.8V                                         
                  0.11 sec/60° @ 6.0V                                         
          Torque: 98 oz-in (7.0kg/cm) @ 4.8V                                  
                  122 oz-in (8.8 kg-cm) @ 6.0V                                
          Weight: 1.6oz (45g)                                                 
          Dimensions: 1.6 x 0.8 x 1.0" (41 x 20 x 25mm)                       
          Distance Between Mounting Hole Centers: 0.39" (10mm)                
          Horn Screw Size: 3x8mm                                              
                                                                              
COMMENTS: S9551 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 S9551 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.                   
          For full performance use with FM, PCM and HR systems.               
                                                                              
          A note on Coreless motors. A conventional servo motor has a steel   
            core armature wrapped with with wire that spins inside the magnets.
           In a Coreless design, the armature uses a thin wire mesh that forms
           a cup that spins around the outside of the magnet eliminating the  
           heavy steel core. This design is much lighter resulting in smoother
           operation and faster response time.