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RJX FS-0391THV Metal Gear Digital Tail Servo Ultra High Speed 10.6kg / 0.03sec / 50g

RJX FS-0391THV Metal Gear Digital Tail Servo Ultra High Speed 10.6kg / 0.03sec / 50g

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The RJX FS-0391THV provides the ultimate in performance for mini size servos. Cranking out a whopping 10.6kg and 0.03sec transit speed @ 8.4V, you will be hard pressed to find a better servo for your money. The massive torque and lightning fast speed makes this servo ideal for use in 500 size helicopters as a tail servo. The entire gear train is metal, making stripped gears virtually impossible. The case is machined from aluminum alloy providing the ultimate in durability and offering excellent heat dissipation.

The RJX FS-0391THV is a true high-voltage servo capable of operating at a constant 8.4V, yet still yields impressive numbers at as low as a 6V input. This makes it a very versatile servo which can be used in many different applications.

A full set of servo hardware is included, ideal for use with 500 size helicopter tail servo applications. Perfect for your T-rex 500, Hirobo Lepton EX, HK 500, or RJX X-Tron 500

Operating Voltage: 6.0~8.4V
Torque: 8.4kg/cm (116.7oz/in) @ 6.0V, 9.6kg/cm (133.3oz/in) @ 7.4V, 10.6kg/cm (147.2oz/in) @ 8.4V
Speed: 0.035sec/60° @ 6.0V, 0.032sec/60° @ 7.4V, 0.03sec/60° @8.4V
Frequency: 760us/333hz
Gear Type: All metal gear
Spline Count: 25T
Plug Type: JR
Dimensions: 36x15x35.5mm
Weight: 50g


  • SKU 178000029-0
  • Brand RJX
  • Shipping Weight 108.0000
  • Packaging Length 120.00
  • Packaging Width 25.00
  • Packaging Height 90.00
  • Torque(kg)(min. 0.01kg) 10.60
  • Speed (Sec/60deg) 0.03
  • A(mm) 42.00
  • B(mm) 36.00
  • C(mm) 38.00
  • D(mm) 15.00
  • E(mm) 48.00
  • F(mm) 28.00
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