Dr Christie Maddock


Mechanical and Aerospace Engineering

Personal statement

Dr Maddock is an expert in mathematical modelling and system design optimisation for transatmospheric flight vehicles, including spaceplane-based launch systems. 

Dr Maddock received her undergraduate honours degree in 2002 in Aerospace Engineering with a concentration in Electronics and Systems from Carleton University in Canada. Her thesis was on the design of an optical inter-satellite link for a LEO-GEO data relay satellite system. Her doctoral research was conducted at the University of Glasgow on the dynamics, navigation and control of a spacecraft formation of solar concentrators in the proximity of an asteroid. Prior to obtaining her PhD, Dr Maddock worked for the Canadian Spectrum Engineering Division analysing and designing future communications satellites, and sitting on a number of working parties within the Radiocommunications bureau of the International Telecommunications Union (ITU).


Has expertise in:

    • Earth-to-space vehicle design
    • Spacecraft formation flying
    • Modelling and simulation of engineering systems
    • Satellite telecommunications
    • Evaluation and analysis of trajectory design for air/space vehicles
    • Design and analysis of proximal motion dynamics, open and closed loop control
    • Analysis and/or the development and simulation of software models
    • Consultation on the regulatory process for satellite frequency and orbital location


Robust trajectory optimisation of a TSTO spaceplane using uncertainty-based atmospheric models
Ricciardi Lorenzo, Maddock Christie, Vasile Massimiliano
23rd AIAA International Space Planes and Hypersonic Systems and Technologies Conference AIAA International Space Planes and Hypersonic Systems and Technologies Conference (2020)
Multidisciplinary design analysis of a semi-reusable two-stage-to-orbit small payload launch system
Maddock Christie, Ricciardi Lorenzo Angelo, Toso Federico, Vasile Massimiliano
International Astronautical Congress 2019 (2019)
Aerodynamic database development for a future reusable space launch vehicle, the Orbital 500R
Stindt Tristan, Merrifield Jim, Fossati Marco, Ricciardi Lorenzo Angelo, Maddock Christie Alisa, West Michael, Kontis Kostantinos, Farkin Bernard, McIntyre Stuart
The International Conference on Flight vehicles, Aerothermodynamics and Re-entry Missions and Engineering (2019)
Robust multi-objective optimisation of a descent guidance strategy for a TSTO spaceplane
Ricciardi Lorenzo A, Maddock Christie Alisa, Vasile Massimiliano, Stindt Tristan, Merrifield Jim, Fossati Marco, West Michael, Kontis Konstantinos, Farkin Bernard, McIntyre Stuart
International Conference on Flight vehicles, Aerothermodynamics and Re-entry Missions and Engineering (2019)
Direct solution of multi-objective optimal control problems applied to spaceplane mission design
Ricciardi Lorenzo A, Maddock Christie Alisa, Vasile Massimiliano
Journal of Guidance, Control and Dynamics Vol 42, pp. 30-46 (2019)
Conceptual design analysis for a two-stage-to-orbit semi-reusable launch system for small satellites
Maddock Christie Alisa, Ricciardi Lorenzo Angelo, West Michael, West Joanne, Kontis Konstantinos, Rengarajan Sriram, Evans David, Milne Andy, McIntyre Stuart
Acta Astronautica Vol 152, pp. 782-792 (2018)

More publications

Professional activities

International Conference on Bioinspired Optimisation Methods and Their Applications
International Astronautical Congress
Integrated range safety analysis
Asteroid Deflection and Active Debris Removal Methods with Spaceborne Lasers
Space launch systems and their role in Scotland
A Numerical and Analytical Study of Size Effects in Free Vibration of Heterogeneous Materials

More professional activities


Doctoral Training Partnership 2018-19 University of Strathclyde | Parsonage, Ben
Maddock, Christie (Principal Investigator) Vasile, Massimiliano (Co-investigator) Parsonage, Ben (Research Co-investigator)
01-Jan-2019 - 01-Jan-2022
Preliminary design of a UK small satellite launch system RAEng Industrial Fellowship
Maddock, Christie (Principal Investigator)
04-Jan-2017 - 31-Jan-2018
Uncertainty Treatment and OPtimisation in Aerospace Engineering (UTOPIAE) (H2020 MCSA ETN)
Vasile, Massimiliano (Principal Investigator) Akartunali, Kerem (Co-investigator) Maddock, Christie (Co-investigator) Minisci, Edmondo (Co-investigator) Revie, Matthew (Co-investigator)
01-Jan-2017 - 31-Jan-2020
NSTP Small Satellite Launcher (FSPL-UK)
Maddock, Christie (Principal Investigator) Minisci, Edmondo (Co-investigator)
26-Jan-2016 - 29-Jan-2016
Doctoral Training Partnership (DTP - University of Strathclyde) | Wilson, Andrew
Vasile, Massimiliano (Principal Investigator) Maddock, Christie (Co-investigator) Wilson, Andrew (Research Co-investigator)
01-Jan-2015 - 13-Jan-2020
NSTP Call 2 (SSTO Integrated Design Platform)
Maddock, Christie (Principal Investigator) Minisci, Edmondo (Co-investigator)
This collaborative project between the University of Strathclyde and Reaction Engines Ltd.\ builds on initial research within the Centre for Future Air-Space Transportation Technology (FASTT) at the University of Strathclyde developing an integrated design platform for quickly assessing design parameters based on optimised performance and operations for space access vehicles. This project extends upper atmosphere re-entry models developed at FASTT, targeting at assessing the trajectory from atmospheric entry to the end of the hypersonic phase, to include de-orbiting and gliding phase and to implement a number of numerical tools to improve the convergence rate of the optimisation approach. Reaction Engines' Skylon vehicle is used as a test case to analyse optimised descent trajectories for their standard mission profiles. Reduced order models were used, calibrated by high fidelity simulations, for the vehicle disciplinary models. The final code is able to optimise the descent trajectory, from de-orbiting to final approach. For this project, as well as for the entire design platform, importance was given to developing a consistent and robust software framework that will facilitate the use of the spaceplane integrated design platform as an open source tool in the future.
02-Jan-2015 - 31-Jan-2015

More projects


Mechanical and Aerospace Engineering
James Weir Building

Location Map

View University of Strathclyde in a larger map