Product Overview
SW140B micro turbojet engine is an ultra-high-power civil miniature jet propulsion system independently developed by SWIWIN, acting as a heavy-duty high-performance UAV engine and drone gasoline engine solution for large industrial unmanned aircraft and premium giant hobby jet aeromodelling.
Our brand focuses on full-cycle independent research, intelligent precision manufacturing and standardized global supply chain management of civil micro aviation turbine power equipment. We supply compact, low-fault, easy-operating kerosene-powered propulsion solutions for global large aeromodelling clubs, heavy-load commercial UAV manufacturers and university civil aerospace research laboratories.
Compared with mid-to-high thrust SW120B, SW80B, SW60B and lightweight SW55B models, SW140B adopts 99.4mm diameter and 241mm overall length design to match heavy airframes carrying large survey, environmental inspection and high-volume agricultural spraying payloads. It only supports aviation kerosene as standard fuel with a 3%–5% dedicated turbine lubricant mixing ratio, paired with self-developed brushless starter, mini precision fuel pump and intelligent V3 ECU controller. The single-bus communication architecture greatly simplifies internal wiring layout of large fixed-wing UAVs, and multi-dimensional real-time parameter monitoring effectively prevents over-temperature, overspeed and stall faults for all civilian flight platforms.
Complete Official Technical Parameter Table
| Parameter Item | Standard Technical Data |
|---|---|
| Official Model | SW140B Micro Turbojet Engine |
| Rated Continuous Thrust | 14kg (140N) |
| Main Engine Net Weight | 1280g |
| Outer Diameter | 99.4mm |
| Total Overall Length | 241mm |
| Stable Idle Rotational Speed | 38,000 RPM |
| Full Operating RPM Range | 38,000 ~ 130,000 RPM |
| Rated Maximum Exhaust Temperature | 750℃ |
| Upper Limit Fuel Consumption | ≤380g/min |
| Compatible Fuel Type | Aviation Kerosene |
| Lubricating Oil Mix Ratio | 3% ~ 5% turbine dedicated lubricant |
| Standard Maintenance Cycle | 25 continuous flight hours |
Self-Developed Core Component Detailed Introduction
Independent Brushless Starter Motor
Optimized internal magnetic circuit and wear-resistant bearing structure, stable torque output during cold startup of the UAV engine
Low vibration and low noise during long-time continuous operation
Extended service life after thousands of startup cycle aging tests, fully matching SW140B ignition logic
Standard maximum output speed up to 97,000 RPM to realize fast preheating and reliable ignition
Mini Precision SWP30S Fuel Pump
Ultra-small integrated compact structure, occupying minimal internal installation space of heavy-load UAV airframes
High-precision internal gear assembly to realize even, stable fuel atomization delivery
Universal 4mm inlet and outlet pipe connectors, easy connection between fuel tank and engine combustion chamber
Real-time voltage adjustment linked with V3 ECU to balance fuel supply volume under different throttle gears, reduce total fuel consumption of this drone gasoline engine
Single-Bus Signal Communication Architecture
Only one data bus cable completes signal transmission between ECU, turbine main body, fuel pump and parameter display
Reduce messy internal wiring of large fixed-wing UAVs and lower electromagnetic signal interference risks
Synchronously transmit real-time data including RPM, exhaust temperature, pump voltage and throttle position for full flight status monitoring
Simple plug-and-play wiring operation, friendly for amateur aeromodel users without professional circuit matching experience
V3 Generation Self-Developed ECU Control System
Equipped with high-performance 32-bit high-speed operation chip, ultra-fast data calculation and throttle response speed
Built-in fixed RPM lock control function: automatically stabilize rotation speed without continuous manual throttle adjustment
Integrate engine flameout protection and manual restart lock function to improve overall flight safety coefficient
Abundant expansion interfaces: 3S lipo power supply, telemetry data feedback, display screen access, PPM throttle signal input port
Built-in multi-dimensional fault self-detection including over-temperature, over-voltage and low-speed stall, effectively extend the service life of the UAV gasoline engine
Civil Commercial Application Scenarios
Giant High-Performance RC Jet Aeromodelling
Premium ultra-high-thrust UAV engine for advanced giant jet model hobbyists and professional international aeromodelling competitions. The 14kg steady thrust and sensitive throttle response support agile high-speed cruising, steep vertical climbing and sharp bank turn flight actions, greatly upgrading flight experience of large civil jet model aircraft.
Heavy-Load Large Civil Fixed-Wing UAVs
Serves as core drone gasoline engine power source for multiple large-sized heavy-load civilian unmanned aerial platforms:
Long-range landform survey & remote sensing mapping UAVs with large professional camera payloads
Large-area agricultural crop inspection and high-volume pesticide spraying industrial drones
Cross-region river basin, forest and coastal air quality environmental monitoring fixed-wing UAVs
Civil sightseeing and light cargo transport unmanned aircraft with high takeoff weight
University Civil Aerospace Teaching & Lab Research
Perfect heavy-thrust test power equipment for school aviation miniature jet propulsion teaching experiments and large civil aircraft prototype R&D. Complete real-time parameter monitoring system provides accurate, repeatable test data for students and researchers engaged in large-scale micro turbine UAV engine technical research.
FAQ Section
What fuel and lubricant mixing ratio does SW140B UAV gasoline engine require?
A1: This micro turbojet only supports aviation kerosene as standard fuel. Operators need to mix 3% to 5% dedicated turbine lubricating oil into kerosene before each flight to protect internal rotors and bearings from wear and high-temperature damage.
What is the standard maintenance cycle of SW140B jet engine?
A2: The fixed maintenance cycle is 25 flight hours. After reaching the cycle standard, users need to disassemble and clean fuel filter, check fuel nozzle and rotor components, and replace worn consumable parts to guarantee long-term stable operation of the drone gasoline engine.
