QS27A 20kW UAV Engine Integrated Start-Motor-Generator Version (27.2 hp) High-Efficiency, Low-Vibration Power System for 100–200 kg UAV Platforms

QS27A 20kW UAV Engine Integrated Start-Motor-Generator Version (27.2 hp) High-Efficiency, Low-Vibration Power System for 100–200 kg UAV Platforms

Lightweight 20 kW integrated engine with built-in starter-generator, electronic injection, low-vibration opposed-cylinder architecture, automatic braking on shutdown, and optional high-thrust carbon fiber propeller — engineered for 100–200 kg UAV platforms.

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SKU: QS27A Category:

📘 PRODUCT DESCRIPTION

The  QS27A Integrated Start-Motor-Generator is a next-generation 20 kW propulsion system designed for professional fixed-wing, composite-wing, and loitering-munition UAV platforms in the 100–200 kg class.
Its horizontal-opposed cylinder layout delivers exceptionally low vibration, improving sensor stability, avionics protection, and overall platform endurance.

Powered by 92# and above gasoline, the system features an intelligent electronic injection fuel supply, a 50:1 lubrication ratio, and optimized combustion efficiency, achieving minimum fuel consumption <350 g/kWh.
The integrated starter-generator enables instant start, stable 2 kW @ 28 V on-board power generation, and reduces wiring complexity for easier integration.

A quick-detach modular design allows rapid field maintenance, while the auto-braking shutdown mechanism safely stops propeller motion after engine cutoff.

Key Advantages

  • Fully Integrated Starter-Generator Architecture
    Compact module combining start, power generation, and ignition control; reduces weight and simplifies installation.

  • Horizontal-Opposed Low-Vibration Design
    Enhances payload stability (EO/IR sensors, datalinks) and reduces airframe structural load over long missions.

  • Intelligent Electronic Injection System
    Precise fuel-air management ensures consistent performance and lower fuel consumption.

  • Auto-Brake Safety Shutdown
    Prevents propeller rotation after engine stop, enhancing landing and ground handling safety.

  • Modular Quick-Detach Serviceability
    Enables fast maintenance turnaround for mission-critical operations.

  • High-Thrust Optional Carbon Fiber Propeller
    Static thrust >45 kgf; dynamic thrust >28 kgf @ 50 m/s; additional weight only +0.6 kg.

Technical Specifications

Item Specification
Product Name Integrated Start-motor-generator
Model QS27A
Rated Power 27.2 hp / 20 kW
Fuel Type 92# gasoline and above
Fuel / Oil Ratio 50:1
Speed Range 1500–6500 RPM
Minimum Fuel Consumption <350 g/kWh
Injection System Electronic Injection
Start Mode Inspire Integrated Motor Start
Power Generation 2 kW @ 28 V
Weight <13.4 kg
Dimensions 270 mm (H) × 270 mm (A) × 420 mm (L)
Optional Propeller Carbon Fiber (>45 kgf static, >28 kgf dynamic @ 50 m/s)

Application Scenarios

The engine is optimized for medium-size UAV applications, including:

• Fixed-Wing UAVs

Long-range ISR, surveillance, maritime patrol, mapping missions.

• Composite-Wing / VTOL-Transition Platforms

Hybrid aerodynamic configurations needing stable cruise thrust and efficient power output.

• Loitering Munition / Tactical Unmanned Weapons

Low vibration improves guidance accuracy and terminal stability.

• 100–200 kg UAV Power Systems

Ideal ratio of thrust, electrical output, and total system weight for multi-mission UAV platforms.

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