S9151 Digital Rudder Servo by Futaba

Discontinued Online
This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.
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This is the S9151 Digital High Torque F3A Rudder Servo. This can only be used with 4.8V batteries.

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.


  • Digitally enhanced microprocessors cut about 1/2 of the response time from transmitter input to servo reaction
  • Digital operation allows this servo to reach full power immediately and maintain torque longer
  • High-capacity, high-current wire with low resistance Coreless motor (a wire cage rotates around the magnet)
  • High speed operation for immediate response Nylon gears Dual ball bearings on the output shaft
  • Delivers high torque rudder operation for precision fixed-wing F3A pattern aircraft
  • Dust and water resistant (Not Waterproof)
  • Black plastic case
  • One year warranty

One S9151 Digital High Torque Rudder F3A Servo w/Futaba J Connector and a small round servo horn Four Rectangular Grommets Four Brass Bushings Four 2 x 11mm Mounting Screws One Large Round Horn One Six Arm Horn One Four Arm Horn


  • Length: 1.6" (41mm)
  • Width: .8" (20mm)
  • Height: 1.5" (38mm)
  • Weight: 1.8oz (50g)
  • Speed: .19 sec/60° @ 4.8V
  • Torque: 132 oz (9.5 kg-cm) @ 4.8V
  • Power Supply: 4.8V (Futaba does NOT recommend using 6V) 

This product is expected to arrive on Thursday, April 6 2017.