Aerospace Engineering, Custom UAVs & Flight Systems Consultancy

Hands-on aerospace engineering consultancy spanning conceptual airframe design to experimental flight test. We design, build, and pilot custom FPV and autonomous drones, invent patented takeoff and recovery mechanisms, and commission high-speed flight and cryogenic propulsion systems.

Patented Remote Landing Gear · Custom Drones & Licensed FPV Pilot · Hypersonic Flight Test · Cryogenic LH2 Systems

Directed by Sergiu Iliev (MEng, ACGI) — Imperial College London First Class Honours (Centenary Prize & Best Aerospace Dissertation), Carnegie Mellon University (4.0 GPA), aerospace patent inventor, licensed UAV & FPV drone pilot, and former flight test engineer at Destinus. Selective consultancy mandates.

ILIEV AEROSPACE · ENGINEERING CONSULTANCY & HARDWARE RECORD

Selected Aerospace Consultancy Portfolio

Aerospace engineering consultancy and flight-hardware track record across patented landing gear mechanisms, custom drones and licensed FPV flight operations, hypersonic prototype flight testing, and solar/spacecraft architectures. Directed by Sergiu Iliev (MEng, ACGI).

PRINCIPAL ENGINEERING DOSSIER

Imperial College (1st Class) · Carnegie Mellon (4.0 GPA) · Patent Inventor

DEGREE Imperial MEng Aeronautical (1st Class)
ACADEMIC HONOURS Centenary Prize & Best Dissertation
GRADUATE RESEARCH Carnegie Mellon (4.0 / 4.0 GPA)
PATENTED IP Remote Landing Gear (RLG) Inventor
§ 1.0 Aeronautical Engineering Foundation

Master of Engineering with First Class Honours in Aeronautical Engineering from Imperial College London, receiving the Centenary Prize and the Project Merit Prize for Best Aerospace Dissertation. Completed graduate research at Carnegie Mellon University (4.0 / 4.0 GPA) and won 1st Prize at the NASA Ames Space Settlement Design Contest.

§ 2.0 Flight Hardware & Experimental Track Record

Systems and flight test engineer at Destinus (Payerne Airbase, Switzerland), where he invented and patented the Remote Landing Gear (RLG) system, flight-tested autonomous high-speed prototypes, and commissioned the liquid hydrogen (LH2) test park. Licensed UAV and FPV drone pilot who designs, fabricates, and flight-tests custom high-performance drones and aircraft.

Core Engineering Domains Patented RLG · Custom UAVs & Licensed FPV Pilot · Flight Testing · Cryogenic LH2
Operating Footprint Payerne / Zurich · London · Stockholm · Bucharest
PROJECT 01 · PATENTED AEROSPACE MECHANISM & RECOVERY SYSTEM

Patented Remote Landing Gear (RLG) · Ground-Assist Takeoff & Recovery

INTELLECTUAL PROPERTY Patented Aerospace Invention
TARGET AIRFRAMES Hypersonic & High-Speed UAVs
PRIMARY ADVANTAGE Zero Parasite Landing Gear Mass
VALIDATION Runway Prototype & Flight Trials
§ 1.0 The Engineering Problem

Conventional retractable landing gear adds 4% to 8% dead weight to an aircraft, consumes critical internal fuel volume, and introduces wheel-well thermal sealing vulnerabilities on supersonic and hypersonic airframes.

§ 2.0 Patented RLG Architecture

Invented, engineered, and patented an autonomous ground-assist Remote Landing Gear (RLG) system at Destinus. The RLG acts as a mobile ground cradle that carries the aircraft during takeoff roll and synchronizes beneath the airframe for runway recovery—completely decoupling landing gear loads from the flight vehicle.

§ 3.0 Key Engineering Capabilities
  • Eliminates Onboard Gear Penalty: Frees internal airframe volume for cryogenic liquid hydrogen (LH2) propellant tanks and removes heavy hydraulic retraction actuators.
  • Continuous Thermal Protection: Preserves an unbroken lower fuselage aerodynamic and thermal shield without landing-gear door seams.
  • Kinematic & Release Engineering: Designed mechanical retention latches, shock-absorption kinematics, and synchronized release/capture mechanisms validated on active runways.
PROJECT 02 · CUSTOM DRONES, LICENSED FPV PILOT & AERIAL ROBOTICS

Custom UAV Engineering & Licensed FPV Piloting · Airframes, Avionics & Flight Control

PILOT CREDENTIAL Licensed UAV & FPV Drone Pilot
STRUCTURES Carbon-Fiber Composite Airframes
CONTROL STACK Custom PID, Telemetry & Optical Payloads
APPLICATIONS Flight Testing, Acrobatics & Sensing
§ 1.0 The Objective

Design, manufacture, and flight-test custom unmanned aerial vehicles capable of high thrust-to-weight agility, low-latency video transmission, and stable payload operation in demanding flight regimes.

§ 2.0 Airframe & Avionics Integration

Handled complete mechanical CAD, carbon-fiber frame layup and CNC assembly, brushless propulsion sizing, high-discharge LiPo power distribution, and low-latency RF/video link engineering across multiple generations of custom drones.

§ 3.0 Delivered Flight Systems & Piloting
  • Licensed FPV & UAV Flight Operations: Certified drone and FPV pilot executing high-G aerobatic maneuvers, precision proximity flight, prototype chase/flight testing, and dynamic aerial cinematography.
  • Flight Controller & Gyro Filtering: Tuned high-frequency gyro notch filters and PID control loops to eliminate structural resonance and prop-wash oscillations.
  • Sensor & Payload Integration: Integrated onboard action cameras, GPS/barometric telemetry, and optical sensing payloads for environmental and infrastructure inspection.
PROJECT 03 · HYPERSONIC FLIGHT TESTING & CRYOGENIC PROPULSION

Destinus · Autonomous Prototype Flight Campaigns & LH2 Test Park

FLIGHT TEST BASE Payerne Airbase, Switzerland
PROTOTYPE FLEET Jungfrau & Eiger Autonomous Aircraft
PROPULSION Turbojet, H2 Afterburner & RATO
FACILITY INFRASTRUCTURE 20 K (-253°C) Liquid Hydrogen Park
§ 1.0 The Mission

Validate sub-scale autonomous aircraft prototypes (Jungfrau and Eiger) and build Europe’s dedicated private liquid hydrogen (LH2) propulsion test infrastructure toward Mach 5 hydrogen-powered flight.

§ 2.0 Flight Test & Cryogenic Engineering

Served as Systems and Flight Test Engineer at Payerne Airbase, executing hardware-in-the-loop (HIL) validation, runway flight campaigns, real-time telemetry streaming, and cryogenic LH2 test rig commissioning.

§ 3.0 Verified Milestones
  • Multi-Cycle Flight Testing: Flight-tested autonomous airframes integrating micro-turbojets, hydrogen afterburners, and Rocket-Assisted Take-Off (RATO) boosters.
  • Liquid Hydrogen (LH2) Test Park: Built and commissioned cryogenic storage, vacuum-jacketed transfer lines, boil-off venting, and ATEX/Swiss safety systems at 20 K (-253°C).
  • Real-Time Flight Telemetry: Deployed airborne sensor suites and ground-station telemetry pipelines capturing aerothermal, structural, and propulsion data in flight.
PROJECT 04 · SOLAR HAPS AIRCRAFT, SPACE SYSTEMS & EXPERIMENTAL TESTING

‘Everplane’ Solar HAPS & ‘Arkadiko’ Cis-Lunar Space Station

HAPS ENDURANCE 1-Month Continuous Solar/H2 Flight
ENGINEERING TEAM Led 20 Imperial Aerospace Engineers
SPACE ARCHITECTURE AIAA-Published Lunar Gateway Precursor
LAB TESTING -200°C Cryogenics & Mach 2 Wind Tunnel
§ 1.0 High-Altitude & Orbital Systems

Directed multi-disciplinary vehicle design programmes spanning stratospheric solar-powered aircraft, cis-lunar orbital stations, and experimental laboratory aerodynamics.

§ 2.0 Published & Experimental Highlights
  • ‘Everplane’ Solar-Powered HAPS: Led 20 engineers at Imperial College (advised by Facebook Aquila specialists) to design a 1-month endurance stratospheric UAV powered by ultra-thin solar arrays and regenerative hydrogen fuel cells.
  • ‘Arkadiko’ Cis-Lunar Space Station (AIAA SciTech): Led the orbital mechanics, ECLSS, and modular structural design of a cis-lunar outpost published with the AIAA as an early precursor to NASA’s Lunar Gateway; won 1st Prize at the NASA Ames Space Settlement Contest (‘Paragon’).
  • Cryogenic & Supersonic Lab Testing: Characterized pure Indium alloys down to -200°C in liquid nitrogen (Project Merit Prize for Best Aerospace Dissertation) and conducted subsonic and Mach 2 supersonic wind tunnel testing.
AEROSPACE ENGAGEMENT FRAMEWORK

How We Work · Engineering, Flight Test & Advisory

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Available for selective consultancy mandates in custom UAV & FPV development, Remote Landing Gear licensing and engineering, flight test operations, and aerospace technical advisory:

Contact Sergiu Iliev