Futaba S9177SV 41kg High-Torque 0.11s S.Bus2 Coreless HV Airplane Servo (No BEC Use)
Overview
The Futaba S9177SV is a high-performance S.Bus2-compatible digital coreless servo engineered for demanding airplane applications. Delivering a commanding 41.0 kgf·cm torque and a quick 0.11 sec/60° speed at 7.4V. this servo provides precise and powerful control for large-scale aircraft. Its high-voltage support. compact design. and coreless motor make it ideal for competitive and high-load use cases.
⚠️ Not compatible with dry batteries. Recommended for high-performance RC aircraft systems operating on DC 6.0–7.4V.
Key Features
41.0 kgf·cm torque @ 7.4V for large-scale airplane control surfaces
Fast response: 0.11 sec/60° @ 7.4V
S.Bus2 digital control system for flexible channel mapping and programming
Coreless motor ensures smooth. efficient performance
Compact form factor: Fits into narrow airframes
Supports high-voltage input (6.0–7.4V rated)
Ideal for elevators. rudders. and flaps on performance RC planes
Technical Specifications
| Specification | Value |
|---|---|
| Speed (6.6V) | 0.12 sec/60° |
| Speed (7.4V) | 0.11 sec/60° |
| Torque (6.6V) | 36.8 kgf·cm / 511.2 ozf·in |
| Torque (7.4V) | 41.0 kgf·cm / 569.5 ozf·in |
| Dimensions | 40.5 × 21.0 × 37.4 mm |
| Weight | 74 g / 2.61 oz |
| Rated Voltage | DC 6.0V – 7.4V |
| Operating Voltage | DC 4.8V – 8.4V |
| Motor Type | Coreless |
| Compatibility | S.Bus2 |