
Hybrid VTOL UAV
ALERON
Starting from €11,900
Wingspan
4,000 mm composite wing for efficient long-range fixed-wing flight.
Length
2,100 mm fuselage optimized for stability and payload integration.
4 Electric Motors
Provide vertical lift for VTOL capability and controlled hovering.
1 Combustion Engine
Four-stroke propulsion for cruise flight, efficiency, and endurance.
Complete UAV Platform
Airframe + propulsion delivered fully integrated, no risk with engine mounting.
Focus on Your Mission
Modular payload bays let you install your sensors and avionics; we take care of the mechanics.
Proven Reliability
Built on more than 25 years of ROTO four-stroke propulsion engineering.
Flexible Configurations
Choose ROTO 85 FS or 125 FS to balance endurance, thrust, and power budget.
Why
ALERON
Optimized Powertrain Selection
The ALERON platform is available with two ROTO four-stroke propulsion systems. Whether your priority is maximum endurance or higher thrust for heavy payloads, we provide the right solution.
ROTO 85 FS

Endurance-oriented four-stroke engine, optimized for long-duration UAV missions.
Lightweight, fuel-efficient, and proven in thousands of flight hours.
ROTO 125 FS

High-thrust four-stroke engine designed for carrying heavier payloads.
Provides more onboard electrical power while keeping fuel consumption efficient.
Hybrid Technology
The heart of ALERON’s performance lies in its hybrid technology — EFI for efficiency, STG for intelligent power. This combination ensures smoother flights, longer missions, and greater flexibility for any UAV operation.

EFI — Electronic Fuel Injection
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Optimized fuel–air mix for all phases of flight
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Up to 40% fuel savings vs. carburetors
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Stable performance up to 5 000 m altitude
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Smooth throttle response and reliable start

STG – Starter-Generator
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Remote start and stop in flight
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Continuous onboard power for avionics
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Hybrid boost for take-off and climb
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Integrated control with E-CON power module
Autopilot Integration
Seamless integration with ArduPilot and DroneCAN standards.
Full engine control, telemetry, and configuration directly from your flight controller.
Standardized protocol for EFI and Starter-Generator modules. Ensures reliable data exchange, reduces wiring complexity, and makes integration straightforward even for advanced UAV setups.
DroneCAN
Tested with ArduPilot Plane 4.5.7 on Durandal, Pixhawk, and Cube. Full support for start/stop, power modes, and telemetry directly in Mission Planner.
ArduPilot
Real-time data stream: RPM, fuel pressure, temperatures, and injection values. Provides clear engine health monitoring and increases mission reliability.
Full telemetry
Plug & play via CAN bus. EFI and Starter-Generator are auto-detected in ArduPilot and configurable through MAV Manager or DroneCAN GUI.
Simple setup

Mission Applications
Aerial Survey & Mapping
Security & Surveillance
Logistics & Cargo Delivery
Precision Agriculture
Environmental Monitoring
4000 mm wingspan
optimized for efficient fixed-wing cruise and maximum endurance
Carbon composite construction
lightweight yet exceptionally strong for demanding missions
Hybrid VTOL +
fixed-wing design
vertical take-off and landing combined with long-range flight capability
Modular payload bays
flexible integration of sensors, cameras, avionics, or cargo to match your mission
What You Get

Aerial Perspectives
Let’s Build Your UAV
Tell us your mission and payload.
We deliver ALERON with the propulsion system integrated — ready to fly.