Product Brief Introduction
The SW300B micro turbojet UAV gasoline engine is an in‑house‑developed high‑thrust miniature gas‑turbine power solution designed for heavy‑duty large‑size civilian unmanned aerial vehicles and high‑end recreational RC‑jet platforms. As a high‑output heavy‑duty UAV gasoline engine, it integrates self‑developed brushless starting assembly, bubble‑eliminating four‑eye fuel pump and single‑bus V3 intelligent ECU control unit, solving common weaknesses of conventional micro‑jet hardware including unstable fuel delivery, cluttered internal wiring and limited safety‑oriented control functions.
With compact but robust integrated mechanical framework, this drone gasoline engine measures 132 mm outer diameter, 331.4 mm overall length and achieves net dry weight of 2560 g. Its well‑thought‑out structural design maximizes usable cabin volume for aerial survey sensors, data‑transmission modules and other civilian mission payload equipment. This power unit adopts standard aviation kerosene as fuel with a 3%‑5% turbine lubricant mixing ratio, and its peak fuel consumption is controlled below 820 g/min under full‑thrust working condition.
All research‑and‑development, manufacturing and bench‑test specifications are strictly limited to non‑military civilian commercial, educational and hobby‑aviation use cases. The complete supporting accessory kit is shipped together with the main engine body to shorten assembly and commissioning cycles for global purchasers.
Unified Integrated Technical Parameter Table
| Parameter Category | Item Name | Specific Parameter Value |
|---|---|---|
| Main Engine Body | Product Model | SW300B |
| Main Engine Body | Maximum Static Thrust | 30kg / 300N |
| Main Engine Body | Outer Diameter | 132mm |
| Main Engine Body | Overall Length | 331.4mm |
| Main Engine Body | Net Dry Weight | 2560g |
| Main Engine Body | Usable Rotational Speed Range | 38000 ~ 98000 rpm |
| Main Engine Body | Stable Idle Speed | 38000 rpm |
| Main Engine Body | Rated Maximum Exhaust Temperature | 750℃ |
| Main Engine Body | Maximum Fuel Consumption | ≤820g/min |
| Main Engine Body | Applicable Fuel | Aviation Kerosene |
| Main Engine Body | Standard Lubricating Oil Mix Ratio | 3% ~ 5% |
| Main Engine Body | Standard Maintenance Cycle | 25 Flight Hours |
| Brushless Starter Motor | Rated Operating Speed | 97000 rpm |
| Brushless Starter Motor | Pop‑Up Time | 0.4S |
| Brushless Starter Motor | Pop‑Up Working Voltage | 4V |
| Brushless Starter Motor | Stable Running Voltage | 5V |
| Brushless Starter Motor | Cooling Rotational Speed | 4000 rpm |
| ECU Control System | Main Chip Specification | 32‑bit High‑Speed Processor |
| ECU Control System | Data Transmission Mode | Single Bus Telemetry Signal |
| ECU Control System | Fuel Pump Startup Voltage Range | 0.5–1V |
| ECU Control System | RPM Acceleration Slope Coefficient | 100 |
| ECU Control System | Fuel Pump Output Slope Coefficient | 3 |
| ECU Control System | Ignition Fuel Valve Opening Value | 40 |
| ECU Control System | Ignition Trigger Rotational Speed | 3000 rpm |
| ECU Control System | Preheating Rotational Speed | 4000 rpm |
| ECU Control System | Clutch Separation Rotational Speed | 16000 rpm |
| ECU Control System | Acceleration Curve Parameter | 25 |
| ECU Control System | Deceleration Curve Parameter | 25 |
| ECU Control System | Real‑Time Temperature Limit | ≤1000℃ |
| ECU Control System | Minimum Working Voltage | ≥10V |
| ECU Control System | Fuel Pump Voltage Protection Limit | 13V |
| ECU Control System | Auto Restart After Shutdown | Switchable On / Off |
| Standard Full Kit Accessories | Complete Matching Parts | Main Engine Unit, SWP50D Four‑Eye Fuel Pump, V3 ECU, GSU Display Terminal, Aviation Fuel Filter, Fuel Ball Valve, Power Line, Throttle Line, Telemetry Signal Line |
Core Independent Technical Highlights
Self‑Developed Integrated Brushless Starter Motor
This UAV gasoline engine is equipped with proprietary brushless starter motor rated for 97000 rpm. Its compact integrated layout does not occupy extra airframe installation space and can generate dependable starting torque under low‑temperature and high‑altitude operating environments, lowering cold‑start failure risks. The motor housing receives specialized heat‑dissipation coating treatment, maintaining stable performance during frequent repeated startup cycles and extending overall service life of this drone gasoline engine.
Four‑Eye Double‑Inlet Anti‑Bubble Fuel Pump System
The bundled SWP50D fuel pump features proprietary dual‑inlet dual‑outlet pipeline architecture with a 6 mm fuel inlet and 4 mm fuel outlet. Its multi‑layer internal flow‑splitting construction thoroughly breaks air bubbles mixed inside aviation kerosene, fundamentally eliminating flameout hazards caused by fuel‑line air blockage during steep climbing and high‑speed cruise. The pump housing is manufactured from corrosion‑resistant aluminum alloy to endure long‑duration fuel contact and reduce component replacement frequency for commercial‑end users.
Simplified Single‑Bus Communication Architecture
Different from multi‑cable discrete‑signal micro‑jet engines available on market, this drone gasoline engine adopts only one single‑bus channel to complete full‑range data exchange covering rotational speed, exhaust temperature and throttle commands between ECU, ground display terminal and flight controller. This solution drastically simplifies internal aircraft wiring layouts, decreases wiring‑related fault points and improves anti‑interference performance of the whole onboard electrical network.
V3 32‑Bit Intelligent ECU Control Unit
The supporting V3 ECU runs on high‑speed 32‑bit computing chip, delivering two key practical capabilities: fixed‑RPM hold and switchable automatic restart after unexpected shutdown. When transient fuel‑supply fluctuation or momentary power loss occurs in‑flight, the ECU will activate re‑ignition sequences autonomously without manual ground intervention, greatly enhancing operational safety for long‑range civilian aerial assignments. Reserved expansion ports support real‑time telemetry data feedback toward ground‑station monitoring hardware.
High‑Temperature‑Resistant Integrated Turbine Main Body
Turbine rotor, combustion chamber and exhaust nozzle of this UAV gasoline engine are all cast from premium aviation superalloy. These components continuously tolerate 750 ℃ exhaust temperature under full‑load working conditions without structural deformation or power decay. Streamlined outer casing cuts aerodynamic drag in flight, and symmetric standardized mounting lugs are pre‑reserved to fit most mainstream large‑size civilian fixed‑wing UAV and RC‑jet airframes without custom mechanical modification.
Civilian Commercial Application Scenarios
The SW300B micro turbojet drone gasoline engine is exclusively designed for non‑military civilian industrial, educational and recreational aviation‑related projects:
- High‑speed aerial survey & mapping: long‑distance mountain‑range terrain scanning, highway infrastructure inspection, large‑scale land‑resource general‑survey assignments
- Civilian environmental monitoring: full‑basin river water‑quality patrol, wide‑area forest vegetation growth tracking, wild ecological‑resource investigation
- Agricultural industrial UAV equipment: rapid large‑orchard patrol operations, high‑speed farm‑crop growth inspection tasks
- University aerospace laboratory research platforms: aerodynamic test aircraft, miniature turbine‑power R&D prototypes
- Premium large‑scale RC jet aircraft, commercial aviation‑exhibition demonstration aircraft models
Packaging, Delivery & Downloadable Technical Files
Standard Export Packaging: Custom shock‑absorbing aluminum inner box with thermal‑insulation foam lining + fumigated heavy‑duty wooden outer crate. All precision turbine assemblies and electronic accessories get individual wrapping with anti‑rust grease paper plus anti‑static film to avoid collision damage throughout cross‑border sea and air logistics.
Supported International Trade Terms: EXW, FOB, CIF, DDP door‑to‑door worldwide delivery; we cooperate with specialized aerospace‑focused freight providers.
Bulk Customized Packaging: Reinforced impact‑proof wooden crates are available for large‑volume wholesale orders, with isolated partition protection for every single accessory.
Delivery Lead Time: Single‑sample full‑kit shipments within 12 working days; mass‑production batch orders are fulfilled within 22‑28 working days after deposit confirmation.
Free Downloadable Documents After Order Confirmation: SW300B technical‑specification PDF, SW300B dimension‑drawing PDF, official installation‑and‑operation‑manual PDF.
Factory R&D & Strict Quality Inspection Flow
The manufacturer owns complete in‑house micro‑turbine R&D laboratories, CNC intelligent manufacturing workshops and full‑function turbine bench‑test facilities. Every finished SW300B UAV gasoline engine needs to complete six critical inspection procedures before factory dispatch:
- Incoming raw‑material verification: material‑composition analysis plus dimensional calibration for high‑temperature‑alloy rotor, ECU chip, fuel‑pump hardware and all sealing components.
- Ultra‑high‑speed rotor dynamic‑balancing calibration and real‑time vibration‑magnitude detection.
- Three‑hour uninterrupted full‑load bench test; thrust value, rotational speed, exhaust temperature and fuel‑consumption metrics are logged synchronously.
- Low‑temperature and high‑altitude simulation cold‑start testing for startup‑reliability validation under harsh environmental conditions.
- Full‑kit accessory matching inspection plus functional verification covering wiring harnesses, fuel‑system parts and data‑display hardware.
- Finished‑unit anti‑rust protection, anti‑static handling and final packaging quality audit.
Each drone gasoline engine receives a unique independent serial number. All bench‑test logs and manufacturing records are permanently archived to deliver traceable quality assurance for global civilian UAV integrators and resellers.
Frequently Asked Questions
FAQ 1 What fuel and lubrication mixing ratio should I use for SW300B UAV gasoline engine? Are ethanol‑blended fuels allowed?
Answer: This UAV gasoline engine must utilize pure aviation kerosene blended with dedicated turbine lubricating oil at a mixing ratio of 3%‑5%. Any ethanol‑containing fuel is strictly forbidden. Ethanol will generate heavy carbon accumulation inside combustion chambers, clog four‑eye fuel‑pump pipelines and inflict permanent damage upon high‑temperature turbine rotors. Please clean the fuel filter before every refueling event to stop particulate matter from obstructing fuel circuits. Perform full‑disassembly maintenance strictly complying with the 25‑flight‑hour service cycle.
FAQ 2 Is the single‑bus V3 ECU compatible with third‑party autopilot hardware? How should operators respond to unexpected in‑flight engine flameout events?
Answer: The single‑bus communication interface of V3 ECU works with mainstream civilian‑grade industrial autopilot products available on global markets; matching communication‑protocol documents are supplied free‑of‑charge. This drone gasoline engine comes equipped with built‑in automatic restart capability. If unplanned flameout takes place mid‑flight, the ECU will trigger ignition procedures within several seconds to restart the engine. In the event of multiple unsuccessful restart attempts, cut throttle power supply and execute comprehensive ground inspection after completing safe gliding landing. Our engineering team offers remote ECU‑parameter‑tuning technical support upon request.
Inquiry & Global Cooperation Guide
Should you require sample bench‑testing services, bulk‑wholesale quotations, airframe‑matching technical consulting, ECU‑parameter tuning, or wish to acquire downloadable SW300B technical‑spec and dimension PDF documents, submit your inquiry via website contact‑form or official business email. Our specialized aerospace‑power sales‑engineering team replies to all consultation submissions within 24 working hours and provides complimentary global after‑sales‑policy documents plus detailed installation‑operation guidance materials.
