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.
X20-7.4-M-805 HV Brushless HLS Tail Servo 12Kgf.cm 0.030sec for 700-800 Class RC Helicopters is an RC product from KST Servos. This page focuses on what an end customer needs: fit, use cases, specifications and imagery, without prices or outbound supplier detours.
X20-7.4-M-805 HV Brushless HLS Tail Servo 12Kgf.cm 0.030sec for 700-800 Class RC Helicopters fits customers looking for KST Servos items in Helicopter Servos, Industrial & UAV Servos, Standard Servos, with RC-MODEL support for choosing the right configuration.
X20-7.4-M-805 HV Brushless HLS Tail Servo 12Kgf.cm 0.030sec for 700-800 Class RC Helicopters is a KST Servos product selected for Helicopter 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 | BR0023.0153-1 |
| All Variant SKUs | BR0023.0153-1 |
| Rated Voltage | DC7.4V |
| Voltage Range | DC6.0V-8.4V |
| Working Frequency | 760μs/560Hz |
| Temperature Range | -10℃.......+65℃ |
| Case Material | Aluminium Alloy |
| Motor Type | Brushless DC Motor |
| Gear Set Material | HLS Hardened Steel |
| Position Sensor | Contactless |
| Ball Bearing | 6BB |
| Case Dimensions | 40mm*20mm* 40mm±0.2mm |
| Weight | 75g±10% |
| KST Collections | Helicopter Servos, Industrial, Standard Servos, X20 Series |
| Series | X20 Series |
| Size Class | Standard Servos |
| Application | Helicopter Servos |
| Features | Ultra High Torque & Excellent Speed; Brushless DC Motor; Contactless Hall Sensor; Hardened Steel Gears; 6 Ball Bearings; CNC Aluminium Case; HLS (High Life Span) Hardened Steel Gearbox; Ideal for 700-800 Class RC Helicopters |
| Package Includes | 1 * X20-7.4-M-805 Brushless Servo; 1 Pack of Accessories; Download; Technical Specification of X20-7.4-M-805 Brushless Servo |
| Item | X20-7.4-M-805 HLS Brushless Servo |
| Torque | [email protected] / [email protected] / [email protected] |
| Speed | 0.040sec/60°@6.0V / 0.035sec/60°@7.4V / 0.030sec/60°@8.4V |
| Product Type | RC |
Tags: KST Servos, BR0023.0153-1, Helicopter Servos, Industrial & UAV Servos, Standard Servos, X20 Series, RC servo
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