High-reliability 4-cylinder EFI engine optimized for unmanned aerial systems

The 560 EFI from Innoflight is a 560cc four-cylinder UAV engine specifically engineered for military and dual-use unmanned aerial systems. At its core is the INF Inject electronic fuel injection system, enabling real-time adaptation to variable mission conditions. This engine’s architecture minimizes vibration while maximizing fuel economy, providing the consistent power output essential for extended surveillance or tactical support flights. Its advanced ECU governs each injector independently, constantly adjusting based on per-cylinder head temperatures to maintain optimal combustion stability and ensure mission-critical reliability under changing loads and altitudes.

Designed for modularity, the 560 EFI is offered in configurations tailored for integration flexibility—whether standalone EFI, starter-equipped, or with a high-output 28V three-phase alternator. Dual induction reed valves and precision injector mapping preserve performance even during aggressive throttle transitions. ETFE-jacketed wiring and positive-locking connectors ensure ruggedized durability and straightforward airframe integration, making this propulsion unit a compelling choice for defense UAV platforms demanding efficiency, telemetry visibility, and autonomous health management.