Hybrid VTOL for humanitarian and emergency missions
Mini-Bee is a lightweight hybrid VTOL multicopter designed for rapid deployment, medical support, and emergency operations in isolated areas. Built around a modular architecture and an 18-rotor configuration, it combines vertical takeoff capability, operational flexibility, and reduced logistics footprint.
What makes Mini-Bee different
Hybrid propulsion architecture
Mini-Bee combines a Rotax 916 iS engine with twin EMRAX electric machines, power electronics, and energy buffering to support a distributed 18-rotor system. This approach targets both mission range and operational resilience.
18 distributed rotors
The current configuration uses 18 rotors to improve redundancy, controllability, and safety. Distributed lift also supports stable VTOL operations and contributes to the project’s safety-oriented design philosophy.
Designed for two people on board
Mini-Bee is configured for 2 occupants: 1 pilot and 1 passenger. The aircraft is intended for light air ambulance, emergency access, and other high-value humanitarian missions.
Fast and efficient mission profile
Cruise speed: 160 km/h
Range: 450 km
Cruise power: 100 kW
MTOW: 700 kg
Rapid deployment in standard air cargo
Mini-Bee is designed to be packed into LD3 container logistics for transport by conventional civil cargo aircraft. This enables shipment to remote areas and assembly on the tarmac, with lower deployment complexity than traditional helicopter operations.
Mission-oriented modular structure
The aircraft uses a composite tubular frame with a modular architecture. This supports transportability, maintenance access, and field deployment, while also integrating crash-protection intent into the overall vehicle concept.
Flight control and pilot assistance
Mini-Bee includes computerized flight controls, joystick-based piloting, sport mode, and emergency beacon integration. The project also includes STM32-based FCU development and sensor integration for stabilization, control, and monitoring.
Integrated avionics and sensing
The platform is designed around onboard monitoring and control systems, including Kanardia equipment and physical sensors such as accelerometer, magnetometer, and barometer modules for flight data and control support.
Built for humanitarian operations
Mini-Bee is primarily intended for:
Light air ambulance missions
Emergency access to remote areas
Rapid humanitarian deployment
Field operations with reduced infrastructure
Advantages versus small helicopters
Lower logistics burden
Mini-Bee is designed for containerized deployment, unlike conventional light helicopters that are harder and more expensive to move by civil cargo.
Hybrid energy approach
The propulsion concept combines thermal and electric subsystems to support efficient mission performance and new architectural possibilities.
Safety-oriented distributed lift
The 18-rotor layout is intended to improve redundancy and fault tolerance compared with single-main-rotor configurations.
Open and collaborative development
Mini-Bee is developed under the Lesser Open Bee License 1.3, with contributions from academic and industrial partners through a collaborative engineering framework.
Current status
Project name: Mini-Bee — Hybrid VTOL
Current maturity: TRL 4
Technical coordinator: Technoplane SAS
Mission focus: humanitarian and emergency operations
Current reference configuration: Rotax 916 iS, twin EMRAX system, 18 rotors, 2 people on board
Mini-Bee in one line
A modular hybrid 18-rotor VTOL designed to bring fast, deployable, low-footprint air mobility to humanitarian and emergency missions.