Servo selection: torque, speed, gears and voltage
How to select servos for trainers, sport aircraft, large models, cars and boats without under-sizing a control surface.
X20-3005 Brushless Standard Servo 32Kgf.cm 0.047sec for 1:8 & 1:10 Scale On-road or Off-road RC Race Cars, Aerobatic Airplanes and Jets is a KST Servos product selected for Aircraft Servos, Car Servos. This page is written for practical buying decisions, with the key fit, size, voltage and performance details organized in one place.
Use it to compare torque, speed, voltage range, construction, dimensions, weight, variants and accessory compatibility before choosing the right component for an RC aircraft, helicopter, car, glider, UAV or workshop installation.
These guides explain the setup, safety checks and accessory choices that usually matter for this product type.
How to select servos for trainers, sport aircraft, large models, cars and boats without under-sizing a control surface.
A buying table for matching servo size, torque, speed, gear type and voltage to trainers, gliders, 3D aircraft, EDF jets and Giant Scale models.
Mechanical setup guide for servo arms, linkage angles, throw, control horns, neutral position and radio setup after geometry is correct.
Make an aircraft calmer for beginners by setting low rates, high rates and expo without hiding mechanical setup problems.
Failsafe setup for electric and fuel aircraft: throttle behavior, receiver signal loss, switch positions and safe verification before flight.
| Technical Specifications | |
| Manufacturer | KST Servos |
| Brand | KST |
| Product Code | BR0023.0214 |
| All Variant SKUs | BR0023.0214 |
| Rated Voltage | DC7.4V |
| Voltage Range | DC6.0V-8.4V |
| Working Frequency | 1520μs/333Hz |
| Default Travel Angle | ±50° =100°Total |
| Programmable | Yes |
| Case Material | Aluminum Alloy |
| Motor Type | 4 Pole Brushless DC Motor |
| Gear Set Material | Hardened Steel |
| Position Sensor | Potentiometer |
| Ball Bearing | 2BB |
| Case Dimensions | 40.5mm*20mm*38mm±0.2mm |
| Weight | 70g±10% |
| KST Collections | Aircraft Servos, Car Servos, Industrial, Standard Servos, X Series, X20 Series |
| Series | X Series, X20 Series |
| Size Class | Standard Servos |
| Application | Aircraft Servos, Car Servos |
| Features | 4 Pole Brushless DC Motor, with fast response and high efficiency; Extreme torque & speed; CNC aluminium case; IP65 splash-proof; Working Frequency is up to 1520us/333Hz; Programing box/USB link compatible; *Please note never plug the servo into a live system |
| Item | X20-3005 Brushless Servo |
| Torque | 24Kgf.cm@6.0V, 30Kgf.cm@7.4V, 32Kgf.cm@8.4V |
| Speed | 0.067sec/60°@6.0V, 0.052sec/60°@7.4V, 0.047sec/60°@8.4V |
| Product Type | KST |
| Waterproof | IP65 |
| Stalling Current | 8.80A@6.0V, 10.8A@7.4V, 12.3A@8.4V |
| Total Temperature Range | -20℃……+65℃ |
| Designed for 1 | 8 & 1:10 scale on-road or off-road RC Car Racing (racing, buggy, truggy). Also suitable for high performance aerobatic airplanes, jets, scale models and more. |
| Soft start | Programmable |
Tags: KST Servos, BR0023.0214, Aircraft Servos, Car Servos, Industrial & UAV Servos, Standard Servos, X Series, X20 Series, RC servo
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