Weight
Part A74 g
Part B74 g
Part comparison
Futaba BLS172SV vs Futaba S9177SV
A side-by-side comparison of source-backed specifications within the same subcategory.
11 shared specs2 scored
Directional spec summary
Counts across 2 numeric specifications with a clear higher-or-lower direction.
Part A leads
0
Tied
1
Part B leads
1
These are metric-by-metric differences, not an overall performance score. Check the values below.
Specifications
11 specifications compared side by side.
| Compare bySpecification | AFutabaFutaba BLS172SV | BFutabaFutaba S9177SV |
|---|---|---|
| Physical1 | ||
| Weight | 74 g | 74 g |
| Performance1 | ||
| Stall torque | 3.628 Nm | 4.021 Nm0.393 Nm higher |
| Electrical2 | ||
| Minimum voltageUse-dependent | 6.6 V | 4.8 V |
| Maximum voltage | 7.4 V | 7.4 V |
| Mechanical & integration3 | ||
| Motor kind | Rc servo | Rc servo |
| Drive principle | servo actuator | servo actuator |
| Architecture | Integrated servo module | Integrated servo module |
| Control & communication3 | ||
| Communication interfaces | PWM;S.Bus2 | PWM;S.Bus2 |
| Control modes | PWM/S.Bus2 servo | PWM/S.Bus2 servo |
| Servo signal | PWM | PWM |
| Other specifications1 | ||
| PWM pulse center | 1500 µs | 1500 µs |
AFutabaFutaba BLS172SV
BFutabaFutaba S9177SV
Physical1
Performance1
Stall torque
Part A3.628 Nm
Part B4.021 Nm0.393 Nm higher
Electrical2
Minimum voltageUse-dependent
Part A6.6 V
Part B4.8 V
Maximum voltage
Part A7.4 V
Part B7.4 V
Mechanical & integration3
Motor kind
Part ARc servo
Part BRc servo
Drive principle
Part Aservo actuator
Part Bservo actuator
Architecture
Part AIntegrated servo module
Part BIntegrated servo module
Control & communication3
Communication interfaces
Part APWM;S.Bus2
Part BPWM;S.Bus2
Control modes
Part APWM/S.Bus2 servo
Part BPWM/S.Bus2 servo
Servo signal
Part APWM
Part BPWM
Other specifications1
PWM pulse center
Part A1500 µs
Part B1500 µs
Product sources
Product sources used by this comparison
Futaba BLS172SVOpen source ↗
Futaba S9177SVOpen source ↗