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S8911 High Torque, High Voltage, Programmable Xbus Standard Servo

S8911 High Torque, High Voltage, Programmable Xbus Standard Servo.

 DFA is pleased to announce the release of our new XBus programmable servos, allowing not only serial servo connection, but also individual servo programming with servo adjustments to suit every application. 

Highlights : 
This servos automatically detect the type of output they are plugged into - conventional receiver PWM outputs, or XBus. This means Programmble servos are XBus compatible, and also compatible with PWM receiver signals without any converter, allowing modelers to use conventional receiver systems. 
* Compatible receiver systems : DMSS · DSMJ · 72MHz · 40MHz 

When used on a DFA JR XBus system, the Programamble servos can be programmed in ways not previously possible. No additional programming device is necessary these servos can be setup using a DFA 8+6 DFA T44 ,JR XG series transmitter. 

Changes made to servo programming are immediately apparent. Not only can servo direction and travel be adjusted, but it is now possible to fine tune servo gain, dead band and boost to suit your aircraft and desired response. This precise setup allows servo hunting to be eliminated and precise feel maintained.


464.5 (6.6V) / 520.8 (7.4V) / 591.2 (8.4V) oz-in

33.4 (6.6V) / 37.5 (7.4V) / 42.6 (8.4V) kg・cm


0.15 (6.6V) / 0.13 (7.4V) / 0.11 (8.4V) Sec/60°


1.57 x 0.79 x 1.59 in / 40 x 20 x 40.5 mm


2.71 oz / 76.9 g

Voltage Range


  • High Torque 
  • Slow start function
  • Full Metal Case
  • All Metal Gear
  • With Bigger Ball Bearing for Upper ( Double)
  • Compatible with any radio using PWM control
  • XBus compatible allowing 120 to 180 deg travel
  • Slow start feature
  • You can adjust Dumping, Hold, Deadband...etc
  • Uses RX Xbus port and Xbus transmitter for adjustments
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