Product Overview
SW170B micro turbojet engine is an ultra-heavy high-power civil miniature jet propulsion system independently developed by SWIWIN, serving as a heavy-load 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 SW140B, SW120B, SW80B, SW60B and lightweight SW55B models, SW170B adopts enlarged 109.5mm diameter and 260mm overall length design to match heavy airframes carrying super-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, matched with self-developed anti-bubble SWP50D four-port 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 | SW170B Micro Turbojet Engine |
| Rated Continuous Thrust | 17kg (170N) |
| Main Engine Net Weight | 1500g |
| Outer Diameter | 109.5mm |
| Total Overall Length | 260mm |
| Stable Idle Rotational Speed | 38,000 RPM |
| Full Operating RPM Range | 38,000 ~ 116,000 RPM |
| Rated Maximum Exhaust Temperature | 750℃ |
| Upper Limit Fuel Consumption | ≤480g/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
Passed thousands of startup cycle aging tests to extend overall service life, fully matching SW170B ignition logic
Standard maximum output speed up to 97,000 RPM to realize fast preheating and reliable ignition
SWP50D Four-Port Anti-Bubble Precision Fuel Pump
Exclusive dual-inlet dual-outlet four-channel integrated compact structure, occupies minimal internal installation space of heavy-load UAV airframes
Special flow channel design breaks air bubbles in fuel pipeline thoroughly, completely solving sudden engine flameout caused by bubble blockage during UAV climbing and maneuver flight
Universal 6mm inlet + 4mm outlet pipe connectors, easy connection between fuel tank and engine combustion chamber
Real-time voltage linkage adjustment 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 full signal transmission between ECU, turbine main body, fuel pump and parameter display
Eliminate messy internal wiring of large fixed-wing UAVs and reduce 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 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-heavy high-thrust UAV engine for advanced giant jet model hobbyists and international professional aeromodelling competitions. The 17kg 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 extra-large civil jet model aircraft.
Super Heavy-Load Large Civil Fixed-Wing UAVs
Serves as core drone gasoline engine power source for multiple oversized heavy-load civilian unmanned aerial platforms:
Ultra-long-range landform survey & high-precision remote sensing mapping UAVs with large professional camera payloads
Super-large-area agricultural crop inspection and high-volume pesticide spraying industrial drones
Cross-region river basin, forest and coastal air quality long-duration environmental monitoring fixed-wing UAVs
Civil sightseeing and medium cargo transport unmanned aircraft with high takeoff weight
University Civil Aerospace Teaching & Lab Research
Perfect super heavy-thrust test power equipment for school aviation miniature jet propulsion teaching experiments and oversized 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 SW170B 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 special advantage does the SWP50D fuel pump of SW170B have compared with ordinary fuel pumps?
A2: The SWP50D four-port fuel pump adopts dual-inlet dual-outlet design, which can break fuel bubbles thoroughly and avoid engine flameout caused by air bubbles, a common failure point of regular drone gasoline engine fuel pumps.
