Athens, Greece · Propulsion / launch vehicles

From first principles to tested hardware.

I connect propulsion, aerodynamics, structures, manufacturing, and flight data—then test the resulting system against its original requirements.

Primary focus
Propulsion · launch vehicles
Working method
Model · design · build · test
Availability
Open to early-career aerospace, propulsion, test, and systems roles
MISSION DEFINITIONINTERNAL BALLISTICSTRANSONIC AERODYNAMICSAEROSTRUCTURESRECOVERY SYSTEMSFLIGHT VALIDATION

01 / Selected work

Evidence over adjectives.

Each case study is structured for a fast technical review: requirement, contribution, method, and result.

02 Propulsion research Analysis & verification

Internal ballistics · pressure vessel · thermal

Solid rocket motor performance and casing verification

Designed and statically tested a solid rocket motor using coupled internal-ballistics, pressure-vessel, closure, nozzle, and transient thermal analyses.

  • Internal ballistics
  • 6061-T6 casing
  • Thermal model
  • Safety factors
STATIC-TEST RECORD0–0.80 s
THRUST · 651.08 NPRESSURE · 5.742 MPa IGNITIONBURNOUT
Static-test result: 462.95 N·s total impulse, 651.08 N peak thrust, and 5.742 MPa peak chamber pressure.
03 Aerostructures Constrained optimisation

Stability · wave drag · flutter

Low-drag fin design under stability and flutter constraints

Developed a Python parametric search over fin geometry and thickness, screening candidates against stability, drag, structural, and flutter constraints.

  • Python
  • Parametric search
  • Static margin
  • Flutter
SELECTED FIN PLANFORMCFRP PLATE
ROOT 45.49 mmTIP 45.49 mmSPAN 45.49 mmSWEEP 48.19°THICKNESS 2.00 mm
Selected four-fin CFRP configuration: 45.49 mm chord and span, 48.19° sweep, and 2.00 mm thickness.
04 Flight systems Selection & integration

Avionics selection · recovery · data reconciliation

Avionics, recovery, and post-flight validation workflow

Integrated the avionics and recovery system, recovered the vehicle successfully, and reconciled logged barometric and GPS data with bracketed simulations.

  • System selection
  • Recovery sizing
  • Telemetry
  • Model validation
APOGEE COMPARISONTHESIS FIG. 9.2
3,394 m3,279 m3,175 m DESIGNFINAL CONFIG.FLIGHT LOG
Apogee 21.65 sDrogue 22.65 sMain 118.15 s
Measured apogee was 3.189% below the final-configuration simulation; recovery completed successfully.
05 Build project Additive manufacturing

Open-source adaptation · mechatronic integration

Open5X multi-axis additive manufacturing platform

Supported the adaptation of an Open5X platform to a different donor printer by studying the existing kinematics and fabricating revised motion and support components.

  • CAD
  • Fabrication
  • Motion systems
  • Commissioning
06 Control retrofit Digital manufacturing

CNC · controls · fabrication

Boxford three-axis CNC control retrofit

Reverse-engineered an obsolete educational CNC, replaced its unavailable proprietary controls, and returned the original machine to practical cutting operation.

  • FluidNC
  • Stepper control
  • Electrical isolation
  • Commissioning

02 / Research

Research, from concept to validation.

Conference presentations and an independent thesis covering aerodynamic design, composite structures, and experimental rocketry.

Conference presentation · ICDTDE2025

Aerodynamic Design and Structural Evaluation of a TPMS-Core, Composite-Reinforced Nose Cone

Nikolas S. Nikolaou · Panteleimon Bakalis · Antonis Fatsis · Stelios K. Georgantzinos

Aerodynamic and structural assessment of a nose cone combining a TPMS lattice core with composite skins.

18–20 December 2025 · Irbid, Jordan
Presentation archived on Zenodo · 2026

DOI: 10.5281/zenodo.18271270 (opens in a new tab)

Conference presentation · ICDTDE2025

Integrated Aerodynamic and Structural Design with Experimental Evaluation of a Solid-Propellant Model Rocket

Nikolas S. Nikolaou · P. Bakalis · Antonios Fatsis · Stelios K. Georgantzinos

Integrated vehicle design and subsystem evaluation linking aerodynamic and structural analysis with ground testing.

18–20 December 2025 · Irbid, Jordan
Presentation archived on Zenodo · 2026

DOI: 10.5281/zenodo.18271116 (opens in a new tab)

Undergraduate thesis · Department of Aerospace Science and Technology · National and Kapodistrian University of Athens

Computational Design, Construction, and Experimental Performance Evaluation of a Prototype Transonic Solid-Propellant Rocket

An integrated design, construction, and flight-evaluation study of a small solid-propellant sounding rocket. The work develops a documented methodology through which an individual researcher, small research group, or educational laboratory can translate research requirements into a complete vehicle and evaluate it through modelling, manufacture, static testing, flight, and post-flight analysis.

ScopeMission → flight
RoleIndependent research
StatusCompleted · 2026
Read thesis · awaiting Pergamos

Evidence produced

  • 01
    Complete vehicle design recordRequirements, propulsion, aerodynamics, structures, thermal analysis, recovery, and trajectory modelling.
  • 02
    Static-test datasetPressure and thrust measurements recorded at 1 ms sampling intervals.
  • 03
    Qualification-flight recordBarometric and GPS data reconciled with primary and bounding simulations.

03 / Profile

Breadth with a clear centre.

Propulsion is the destination; multidisciplinary vehicle design is the working language.

Short professional profile

I am an aerospace science graduate focused on propulsion and launch-vehicle development.

I am a graduate of Aerospace Science and Technology with a particular interest in rocket propulsion and launch-vehicle development. My work is strongest where analytical models meet physical constraints: pressure, temperature, stability, structural margins, manufacturing, instrumentation, and test evidence. I enjoy multidisciplinary projects that require both calculation and practical problem-solving, and I value clear requirements, conservative engineering decisions, and results that another engineer can examine and reproduce.

CapabilityEvidence in portfolio
Propulsion analysisInternal ballistics · performance · motor case
AerodynamicsStability · drag · transonic screening
Structures & thermalBuckling · retention · transient conduction
Systems engineeringRequirements · trades · verification
Engineering computingPython · parametric optimisation · RocketPy · data processing
Build & integrationComposite fabrication · additive manufacturing · CNC · electronics integration
Education and researchSelected milestone

Degree in Aerospace Science & Technology

Department of Aerospace Science and Technology · National and Kapodistrian University of Athens · Completed an independent thesis covering the design, construction, static testing, flight testing, and experimental evaluation of a prototype transonic solid-propellant rocket.

04 / Contact

Let’s discuss the engineering.

For propulsion, aerospace R&D, flight systems, and early-career engineering opportunities.

CASE STUDY

Objective

My contribution

Method

    Outcome