Hitec HS-75BB Low Profile Analog Retract (HRC31075S)
$32.99
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Hitec HS-75BB Low Profile Analog Retract (HRC31075S)
$32.99
Low Profile
Fits tight wing slots
High Torque
Up to 113 oz-in
180 Degree Travel
Dedicated retract bang-bang motion
Scale Gear PrecisionDedicated actuation for scale aircraft retracts
The Hitec HS-75BB Low Profile Retract Servo delivers powerful torque and specialized 180-degree motion engineered specifically for scale RC aircraft landing gear systems. Featuring a compact low-profile servo design, it drops effortlessly into shallow wing bays while providing dependable locking strength for mechanical retracts.
Engineered for Mechanical RealismReliable non-proportional power for mechanical retracts
Designed specifically for smooth and realistic mechanical landing gear operation, the Hitec HS-75BB Low Profile Retract Servo provides impressive output force up to 113.87 oz-in at 6.0V. Operating as a specialized non-proportional "bang-bang" servo, the Hitec HS-75BB travels full lock-to-lock across 180 degrees without stopping mid-transit. Built with a single ball bearing and durable nylon gear train, this specialty servo minimizes weight and space usage inside thin airplane wing profiles while maximizing holding capability for scale RC aircraft performance.
Technical SpecificationsFull physical and operational specifications
Part Type
Retract Servo
Size Category
Specialty Low Profile
Type
Analog
Application
Aircraft Landing Gear
Torque
91.65 oz-in (6.6 kg-cm) @ 4.8V; 113.87 oz-in (8.2 kg-cm) @ 6.0V (zap)
Speed
0.45 sec/60° @ 4.8V; 0.34 sec/60° @ 6.0V
Length
1.73 in (44.0mm) (ruler)
Width
0.90 in (23.0mm) (ruler)
Height
0.98 in (25.0mm) (ruler)
Weight
1.23 oz (35.0g) (weight)
Bearing
Single Ball Bearing
Motor Type
3-Pole
Connector Type
Universal
Gear Type
Nylon
Voltage Range
4.8V - 6.0V
Current Draw Idle
1mA @ 4.8V; 1.6mA @ 6.0V
Deadband
20µs
Key Servo FeaturesHigh-performance traits for scale modeling
Low Profile HousingFits easily into thin RC plane wing structures
High Holding TorqueOutput up to 113.87 oz-in at 6V for positive gear locking
Dedicated Retract Function180-degree non-proportional end-to-end operation
Single Ball Bearing OutputSmooth output shaft rotation under heavy loads
Nylon Gear TrainLightweight and precise gear engagement
Universal ConnectorDirect compatibility with all major RC receiver systems
Frequently Asked QuestionsEverything you need to know
What is the main application of the Hitec HS-75BB Low Profile Retract Servo?
The Hitec HS-75BB Low Profile Retract Servo is designed specifically to actuate mechanical landing gear systems in RC airplanes, providing smooth end-to-end 180-degree travel.
Is the Hitec HS-75BB Low Profile Retract Servo a proportional servo?
No, the Hitec HS-75BB is a dedicated non-proportional "bang-bang" retract servo, meaning it only travels from one end of its rotation to the other (180 degrees) without stopping at intermediate positions. If you need a proportional low-profile servo, consider the Hitec HS-77BB.
What voltage range does the Hitec HS-75BB Low Profile Retract Servo support?
The Hitec HS-75BB operates reliably between 4.8V and 6.0V DC receiver power.
Will the Hitec HS-75BB Low Profile Retract Servo plug into my receiver?
Yes, the Hitec HS-75BB comes equipped with a universal connector that fits standard receiver channels across major modern radio systems.