Part comparison

Futaba S9177SV vs Hitec D840WP

A side-by-side comparison of source-backed specifications within the same subcategory.

11 shared specs3 scored

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FutabaFutaba S9177SVS9177SV

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HitecHitec D840WPD840WP

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Directional spec summary

Counts across 3 numeric specifications with a clear higher-or-lower direction.

Part A leads

Tied

Part B leads

These are metric-by-metric differences, not an overall performance score. Check the values below.

Specifications

11 specifications compared side by side.

Futaba S9177SV / Hitec D840WP
Compare bySpecification	AFutabaFutaba S9177SV	BHitecHitec D840WP
Performance3
Stall torque	4.021 Nm1.079 Nm higher	2.942 Nm
Stall torque @ 7.4V	41 kg·cm11 kg·cm higher	30 kg·cm
Speed @ 7.4V	0.11 s/60°	0.11 s/60°
Mechanical & integration4
Motor kind	Rc servo	Rc servo
Drive principle	servo actuator	servo actuator
ArchitectureUse-dependent	Integrated servo module	Rc servo module
Gear materialUse-dependent	metal	Steel
Control & communication3
Communication interfacesUse-dependent	PWM;S.Bus2	PWM
Control modesUse-dependent	PWM/S.Bus2 servo	PWM servo
Servo signal	PWM	PWM
Other specifications1
PWM pulse center	1500 µs	1500 µs

AFutabaFutaba S9177SV

BHitecHitec D840WP

Performance3

Stall torque

Part A4.021 Nm1.079 Nm higher

Part B2.942 Nm

Stall torque @ 7.4V

Part A41 kg·cm11 kg·cm higher

Part B30 kg·cm

Speed @ 7.4V

Part A0.11 s/60°

Part B0.11 s/60°

Mechanical & integration4

Motor kind

Part ARc servo

Part BRc servo

Drive principle

Part Aservo actuator

Part Bservo actuator

ArchitectureUse-dependent

Part AIntegrated servo module

Part BRc servo module

Gear materialUse-dependent

Part Ametal

Part BSteel

Control & communication3

Communication interfacesUse-dependent

Part APWM;S.Bus2

Part BPWM

Control modesUse-dependent

Part APWM/S.Bus2 servo

Part BPWM 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 S9177SVOpen source ↗

Hitec D840WPNo public source