Product Overview
SW55B micro turbojet engine is a compact lightweight civil propulsion system independently developed by SWIWIN, acting as a premium small UAV engine and drone gasoline engine solution for entry-level industrial unmanned aircraft and high-end RC jet aeromodelling enthusiasts.
Our brand specializes in full-cycle independent development, intelligent manufacturing and standardized supply chain management of miniature civil aviation turbine power equipment. We focus on delivering eco-friendly, compact, easy-operating and cost-effective jet propulsion solutions for global aeromodel hobbyists, small commercial UAV operators and university aerospace research labs.
Different from heavy large-thrust turbojet models, SW55B delivers steady 5.5kg continuous thrust with ultra-small body dimensions, perfectly fitting narrow airframe space of light fixed-wing aircraft. It adopts aviation kerosene as standard fuel with clear lubrication oil mixing ratio requirements, paired with self-designed brushless starter, precision fuel pump and 32-bit intelligent ECU control module. The bus-type communication architecture simplifies wiring layout on small drones, and complete parameter self-test functions guarantee stable, low-failure flight performance for all civilian flight platforms.
Complete Official Technical Parameter Table
| Parameter Item | Standard Data |
|---|---|
| Model | SW55B Micro Turbojet Engine |
| Rated Continuous Thrust | 5.5kg (55N) |
| Engine Net Weight | 535g |
| Full Assembly Total Weight | 780g |
| Outer Diameter | 69.5mm |
| Overall Length | 175.2mm |
| Working RPM Range | 60,000 ~ 170,000 RPM |
| Rated Max Exhaust Temperature | 780℃ |
| Maximum Fuel Consumption | ≤230g/min |
| Applicable Fuel | Aviation Kerosene |
| Lubricant Mix Ratio | 3% ~ 5% lubricating oil mixed into fuel |
| Standard Maintenance Cycle | 25 flight hours |
Independent R&D Core Component Introduction
Self-Developed Brushless Starter Motor
SWP30S Brushless Fuel Pump
Optimized internal magnetic circuit design, stable torque output during engine startup
Low vibration and low noise during long-time operation
Extended service life with wear-resistant bearing structure, matching the full RPM startup logic of the SW55B UAV engine
Standard output speed up to 97,000 RPM for fast ignition and stable preheating
Precision Custom Fuel Pump (SWP30S)
Ultra-small integrated compact structure, occupying minimal fuselage installation space
High-precision internal gear design for stable, uniform fuel atomization delivery
Standard 4mm inlet and outlet pipe interface, easy connection with fuel tank and engine combustion chamber
Matched ECU voltage regulation to adjust fuel supply volume under different throttle positions, saving fuel consumption for this drone gasoline engine
Bus-Type Signal Communication Architecture
Single bus line realizes all data transmission between ECU, engine, fuel pump and display screen
Reduce messy wiring inside small UAV airframes, lower signal interference risk
Real-time synchronous transmission of RPM, exhaust temperature, fuel pump voltage and throttle data, real-time flight status monitoring
Simple plug-and-play wiring operation, friendly for amateur aeromodel users without professional wiring experience
V3 Generation Independent R&D ECU Control System
V3 ECU Controller
Equipped with high-performance 32-bit high-speed operation chip, fast data calculation and response
Built-in fixed RPM lock control function: maintain steady rotation speed automatically without continuous throttle adjustment
Support engine auto-shutdown protection and manual restart lock function to improve flight safety
Rich expansion ports: 3S lipo power supply, telemetry data feedback, display screen, PPM throttle signal input
Real-time over-temperature, over-voltage and low-speed fault self-detection to protect the service life of the UAV gasoline engine
Civil Application Scenarios
High-End RC Jet Aeromodelling
Ideal lightweight UAV engine for entry-to-mid level jet model enthusiasts and amateur model competitions. The 5.5kg stable thrust and sensitive throttle response support agile high-speed flight, vertical climbing and sharp turning movements, greatly upgrading flight experience of small-size jet model aircraft.
Light Civil Fixed-Wing UAVs
Serves as core drone gasoline engine power unit for multiple small civilian unmanned aircraft platforms:
Mini aerial survey & landform mapping UAVs with light camera payloads
Small-area agricultural crop inspection & low-volume spraying drones
Short-distance air quality and river environmental monitoring fixed-wing UAVs
Civil aerial photography lightweight unmanned aircraft for recreational shooting
University Civil Aerospace Teaching & Research
Suitable for school aviation laboratory miniature jet propulsion teaching experiments and small aircraft prototype testing. Complete real-time parameter monitoring system provides accurate, repeatable test data for students and researchers studying micro turbine UAV engine technology.
FAQ Section
What fuel and lubricant ratio does this SW55B UAV gasoline engine require?
A1: This turbojet only supports aviation kerosene as standard fuel. Users need to mix 3% to 5% dedicated turbine lubricating oil into fuel before each flight to protect internal bearings and rotors.
What is the standard maintenance cycle for the SW55B micro jet engine?
A2: The fixed maintenance cycle is 25 flight hours. After reaching the cycle, you need to disassemble and clean the fuel filter, check the nozzle and rotor components, and replace worn consumable parts to guarantee stable long-term operation of the drone gasoline engine.
