SKU: 01102156-3 Category:


The FUTABA S9172SV S.BUS2 HV Servo is a high-performance servo designed for demanding RC aircraft applications. With advanced S.BUS2 technology, high-voltage compatibility, and precision engineering, this servo delivers exceptional torque, speed, and reliability for a wide range of flying models.

Key Features:

  1. High-Voltage Compatibility: The S9172SV servo is engineered to operate with high-voltage power sources, ensuring superior performance and responsiveness. It can handle higher voltages, providing increased torque and faster response times for precise control during aerobatic maneuvers and high-speed flights.
  2. Advanced S.BUS2 Technology: Utilizing Futaba’s S.BUS2 protocol, this servo offers advanced communication capabilities and seamless integration with compatible Futaba transmitters and receivers. It allows for precise control adjustments, servo programming, and telemetry data transmission for real-time monitoring of servo performance.
  3. Metal Gear Train: The S9172SV features a durable metal gear train that ensures reliable power transmission and long-lasting performance. The metal gears are designed to withstand high loads and provide smooth, precise movement, even under extreme flying conditions, making it suitable for both sport and competition flying.
  4. Dual Ball Bearings: Equipped with dual ball bearings, the servo provides smooth and efficient operation, minimizing friction and wear for consistent performance over time. The bearings help reduce slop and play in the servo mechanism, resulting in precise control inputs and enhanced flight stability.
  5. High Torque and Speed: With its high torque and speed ratings, the S9172SV servo delivers exceptional performance for a wide range of aircraft control surfaces, including ailerons, elevators, and rudders. It offers quick response times and precise positioning, allowing pilots to execute precise maneuvers and aerobatic sequences with confidence.


The Futaba S9172SV S.Bus2 HV Servo is a high-performance servo designed to meet the demands of various RC applications, providing precise control and reliable operation. Here are the specifications for this servo:

  1. Type: The S9172SV is a digital servo that utilizes Futaba’s advanced S.Bus2 technology, allowing for high-speed communication and precise control over the servo’s functions.
  2. Operating Voltage: It operates within a high-voltage (HV) range of 6.0V to 7.4V, making it suitable for applications that require high torque and performance.
  3. Torque: This servo boasts impressive torque output, with a torque rating of approximately 20.0 kg-cm (277.7 oz-in) at 6.0V and approximately 24.0 kg-cm (333.3 oz-in) at 7.4V. This high torque allows it to handle heavy loads and provide strong, reliable performance in various RC applications.
  4. Speed: The S9172SV servo delivers fast and responsive movement, with a transit time of approximately 0.11 seconds/60 degrees at 6.0V and approximately 0.09 seconds/60 degrees at 7.4V. This rapid speed ensures quick and precise control over your RC vehicle or aircraft.
  5. Motor Type: It features a high-quality brushless motor, which provides smooth and efficient operation while minimizing wear and tear for long-lasting performance.
  6. Gear Material: The servo gears are made of metal (MG – Metal Gear), ensuring durability and reliability even under high loads and stressful conditions.
  7. Size: The dimensions of the S9172SV servo are approximately 40.5 x 20 x 37.8 mm (1.59 x 0.79 x 1.49 inches), making it compact and suitable for a variety of RC applications.
  8. Weight: It has a weight of approximately 76 grams (2.68 ounces), contributing to its lightweight and agile performance.
  9. Compatibility: The Futaba S9172SV servo is compatible with Futaba S.Bus2 systems, offering easy integration and compatibility with a wide range of Futaba radio systems and receivers.

Overall, the Futaba S9172SV S.Bus2 HV Servo is a reliable and high-performance servo that delivers precise control, durability, and responsiveness for a variety of RC applications, making it an excellent choice for enthusiasts and professionals alike.


  • RC Airplanes: Ideal for use in a wide range of RC airplanes, from sport and aerobatic models to scale and competition aircraft. The S9172SV servo can be used to control ailerons, elevators, rudders, flaps, and other control surfaces, providing precise and responsive control for various flying styles and maneuvers.
  • RC Helicopters: Suitable for use in high-performance RC helicopters, such as 3D aerobatic models and scale helicopters. The servo can be used to control cyclic, collective, and tail rotor functions, delivering smooth and precise movement for stable and agile flight characteristics.
  • RC Gliders: Perfect for sailplanes and gliders requiring precise control of control surfaces, spoilers, and flaps. The servo’s high torque and speed capabilities enable pilots to optimize glide performance, thermal soaring, and aerobatic maneuvers with confidence.


The FUTABA S9172SV S.BUS2 HV Servo offers exceptional performance, reliability, and compatibility for a wide range of RC aircraft applications. With its high-voltage compatibility, advanced S.BUS2 technology, and precision engineering, this servo delivers precise control, fast response times, and long-lasting durability, making it an ideal choice for discerning pilots seeking high-performance components for their flying models. Whether you’re flying sport aerobatics, competitive 3D maneuvers, or scale replicas, the S9172SV servo provides the power, precision, and reliability needed to enhance your RC flying experience.

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