Home » Secraft 2.5" Offset Full Servo Arm, 4-40, Futaba 25T – Red
Secraft 2.5" Offset Full Servo Arm, 4-40, Futaba 25T – Red
Secraft 2.5" Offset Full Servo Arm, 4-40, Futaba 25T – Red
Secraft 2.5" Offset Full Servo Arm, 4-40, Futaba 25T – Red in use
Secraft 2.5" Offset Full Servo Arm, 4-40, Futaba 25T – Red technical drawing
Secraft 2.5" Offset Full Servo Arm, 4-40, Futaba 25T – Red
Secraft 2.5" Offset Full Servo Arm, 4-40, Futaba 25T – Red
Secraft 2.5" Offset Full Servo Arm, 4-40, Futaba 25T – Red in use
Secraft 2.5" Offset Full Servo Arm, 4-40, Futaba 25T – Red technical drawing
Secraft

Secraft 2.5" Offset Full Servo Arm, 4-40, Futaba 25T – Red

In stock
SKU: SE-SA-216
(0)
$15.00

Secraft 2.5" Offset Full Servo Arm – Futaba 25T

The Secraft Offset Full Servo Arm provides a rigid, lightweight connection for RC airplane rudder linkages. Its full-width offset design is made from 6061-T6 anodized aluminum with a red finish and accommodates 4-40 linkage hardware.

🚀 Target Applications / Ideal For:

  • Precision RC airplane pull-pull rudder setups demanding straight cable geometry
  • High-torque, heavy-duty applications where standard plastic dual-sided arms can twist under aerodynamic loads
⚠ Sizing & Compatibility Notice: For compatible Futaba, KingMax, Savox, and MKS servos with a Futaba-style 25-tooth output spline. Verify your specific servo's spline count before ordering. Brand name alone does not confirm fit.

Key Features

  • Full-Width Offset Geometry: Specifically engineered to maintain appropriate line tension throughout the pull-pull throw range.
  • 6061-T6 Aluminum Construction: Machined from premium structural alloy to resist twisting and deflection under aggressive flight loads.
  • Futaba-Style 25-Tooth Spline: Precision engineered to provide a secure, non-slip mating lock over standard 25T output shafts.
  • Anodized Red Finish: Protective hard-anodization shield guards raw aluminum faces against workbench scratches and atmospheric corrosion.
  • 4-40 Hardware Ready: Designed to properly anchor standard 4-40 linkage ball links, clevises, or pull-pull cable hardware.
  • Lightweight Design: Weighs a nominal 0.21 oz (6g) to add structural stiffness while keeping control bay mass low.
📋 Technical Specifications
Design Full-width offset servo arm
Nominal Full Width 2.5" (63mm)
Spline Output Count Futaba-style 25T (25-Tooth Pattern)
Linkage Screw Thread Size 4-40
Material Composition 6061-T6 Anodized Aluminum
Anodizing Color Red
Product Weight Approximately 0.21 oz (6g)

📦 What's Included:

  • 1 × Secraft Offset Full-Width Aluminum Servo Arm (2.5", Futaba 25T, Red)
  • 4-40 Linkage Screws

💡 Modeler's Installation and Setup Guide

Center your servo electronically using your radio system or dedicated programmer before threading the arm onto the output spline. Slide the aluminum arm squarely into position and anchor it tightly using your factory servo shaft bolt. When utilizing pull-pull cables, ensure your geometric center tracking matches your rudder horn width parameters to avoid line binding. Always use an appropriate thread-locking compound on metal-to-metal screws to protect linkages against structural airframe vibration.

The Gator RC Advantage: Shop Secraft premium accessories, high-grade control linkages, specialized turnbuckle extensions, and installation hardware elements from Gator RC in Algonquin, Illinois. Contact us for help choosing components for your aircraft.