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Project LILITH

An 18 kg unmanned aircraft that takes off vertically and cruises at Mach 0.62 on the ADAM powerplant.

Mach 0.62
Cruise speed
140 km
Range
18 kg
Takeoff weight
4.5 kg
Payload

Overview

Project Lead & Technical Lead
2025 to present

LILITH is the airframe that proves the ADAM powerplant in flight. It is a fin-stabilized VTOL aircraft that combines vertical takeoff with sustained high-speed cruise, without carrying a large battery pack.

It flies in three states. Electric props lift it vertically with no runway or rail. At low speed the props give it quadcopter-level control. Above Mach 0.3 the props fold flush and the turbine carries it through cruise.

ADAM's 6 kW of onboard generation runs the lift props, sensors, and payload for the whole flight. I lead the aircraft design and the technical direction of the team.

Visit projectadam.tech LILITH details
VTOL configuration
VTOL configuration
Cruise configuration, props folded
Cruise configuration, props folded
Wireframe with the ADAM powerplant installed
Wireframe with the ADAM powerplant installed
Airframe design
Airframe design
Airframe design
Airframe design
CFD analysis
CFD analysis
CFD analysis
CFD analysis

Highlights

  • Vertical takeoff and landing, hover, and jet cruise in one airframe
  • Foldable props transition in the air, with no landing or reconfiguring
  • 6 kW available to sensors and payloads in every flight state
  • Aerodynamics and stability evaluated in ANSYS Fluent, OpenVSP, and XFLR5
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