Futaba S9257 Compact High-Speed Helicopter Servo  [S9257]

Futaba S9257 EP Heli Digital Rudder Servo
Price:
AUD$99.18
Brand:
Futaba
Model:
S9257
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Accurate Tail Response with the Futaba S9257

The Futaba S9257 is a compact, high-speed digital rudder servo crafted for helicopter gyro duties. It offers consistent, precise movement to support stable tail control when paired with compatible gyro units.

Why Heli Pilots Choose This Servo

  • Compatibility: Specifically made to interface with Futaba GY401 and GY502 gyros.
  • Durability: Two ball bearings help ensure smooth operation and longer service life.
  • Warranty: Backed by a one-year limited warranty for added assurance.

What Comes in the Box

Included are multiple horn styles and the necessary mounting hardware to fit different tail linkage layouts. The horns consist of a .83" (21mm) round horn, a 1.5" (39mm) four-point horn, and a 1.2" (32mm) six-point horn for flexible installation options.

Specifications

  • Dimensions: 36 x 15 x 29mm
  • Weight: 26g
  • Torque: 28 oz-in (2.0 kg-cm) at 4.8V
  • Operating Speed: 0.08 sec/60° at 4.8V
  • Lead Length: 200mm

Compact and precise, the Futaba S9257 is a dependable servo option for serious helicopter setups where tight tail control is required.

The S9257 is compact and fast, making it suitable for small to mid-size helicopters, including many micro and aerobatic models when paired with the right gyro.
The published operating speed is measured at 4.8V; actual speed under load depends on setup and voltage but the spec gives a baseline expectation.
Yes. The servo comes with a 200mm lead length which suits most helicopter installations without the need for extensions.
Confirm horn compatibility and servo travel, verify gyro compatibility with Futaba GY401/GY502, and ensure the mounting geometry avoids binding throughout the range of motion.

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