Innovative Science & Engineering Management

Jeff Hetzel, Chief Engineer


An accomplished Aerospace Engineer & Project Leader experienced in all phases of engineering design and analysis in both private industry and the U.S. Air Force. Known for creativity, leadership, integrity, attention to detail, sound engineering judgment, the ability to work with other cultures, and, producing on time and accurate results.

Specialized expertise in:

Expertise and Professional Activities

  • Provide technical leadership to highly skilled, and advanced degree engineers
  • Manage and successfully conclude large design and analysis programs
  • Advanced gas turbine, energy, and ICE technology business development, Six Sigma processes, Certified Black Belt
  • Associate Editor, AIAA Journal of Propulsion and Power. 1991-1994, Author, co-author of more than sixty-five peer reviewed, conference, and invited papers in the areas of CFD, heat transfer, and combustion
  • AIAA technical committee member for committees such as Terrestrial Energy systems, and propellants and combustion
  • Committee member and Chair, Cincinnati/Dayton ASME local chapters, 1989-1992, Vice Chair – AIAA Dayton-Cincinnati Chapter, 2015-Current
  • AIAA Associate Fellow

Outstanding Accomplishments

  • Led a design team for a new military transport aircraft. In addition acted as the lead aerodynamicist for the project. Design was used to establish a baseline for additional follow on designs.
  • Handpicked to review aerodynamics and aero-heating on the baseline National Aero-Space Plane. Recommended materials to solve problem of extreme heating during ascent.
  • Handpicked for membership on a board to develop a National Wind Tunnel Complex.
  • Developed a wave drag methodology, used to more accurately determine drag at supersonic speeds.
  • Developed methodology to determine lift and drag characteristics of flap and slat systems.
  • Led the design team for a conceptual version of the Joint Strike Fighter (Now the F-35). Design was used as a test bed for competing aircraft company designs.
  • Developed a CFD based “virtual wind tunnel” to test conceptual designs that were outside the empirical database.
  • Aerodynamic and Thermal specialist on the design of a new long range bomber.
  • Propulsion and aircraft design specialist on V-22 type aircraft for the Special Operations Force.

Professional Experience

Mechanical Design Engineer
GE Aviation
Cincinnati, Ohio 2013 – 2016
Responsible for the design and analysis of component parts for advanced inlet and exhaust systems for military aircraft.

  • Redesigned the Passport 20 center-body to allow for use of composites in place of metal.
  • Designed the mounting system for an IR camera for the LM6000PH. Camera was positioned just aft of the combustor.
  • Designed and analyzed the liner and seal system for an in-house research tool used to test various materials for use in exhaust systems. Worked closely with Japanese manufacturer to ensure delivery.
  • Analyzed the redesign of the hanger system for the F110 duct for both thermal and vibration analysis. Determined that the redesign would solve the problem of hanger cracking.
  • Designed and analyzed a new hanger design specifically for use on composite liner systems.
  • Analyzed and suggested design changes to composite parts used in testing.
  • Designed and analyzed a hanger system for the F-110 composite liner system

Senior Fluid Dynamic and Thermal Engineer
Cincinnati, Ohio 2007– 2013
Responsible for the Fluid, Thermal, Aerodynamic, and Acoustic analysis of various components of turbine engines.

  • Created a CFD model and ran analysis to help guide G.E. Aviation in the choice of a new seal system for the GE 10 by running analysis on several redesigns. Saving G.E. both time and money.
  • Created a CFD model and ran analysis to determine cause of catastrophic failure of the G.E. LM2500 PTTEP baseline engine. This work enabled a redesign that would prevent future failure, and verified that other derivative engines were not subject to the same failure.
  • Created a CFD model and ran analysis to determine that the test stand for the F-136 engine was not affecting the testing of the engines performance.
  • Created CFD model and ran analysis to help guide G.E. Aviation in the design of a Low Pressure Turbine test rig for the GEXK.
  • Created an acoustics model in Excel to guide Roll Royce in the design of an enclosure for a marine engine to reduce noise in the engine room.
  • Guided G.E. in the redesign of various heat shield components. Using Thermal and Fluid analysis, determined that the shields could be removed with no detrimental effect. Saving G.E. both weight and money.


MS, University of Dayton, Dayton, Ohio, Aerospace Engineering
BS, Wright State University, Fairborn, Ohio, Mechanical Engineering

Professional Development – Wright Patterson Air Force Base

  • Viscous Flow
  • Hypersonic Aerodynamics
  • Reliability and Maintainability
  • Design of Survivable Aircraft
  • Integrated Winged Flight Vehicles
  • Aircraft Dynamics
  • Non-Destructive Testing
  • Aircraft Structural Analysis
  • Fracture and Durability

Professional Societies

  • American Institute of Aeronautics and Astronautics (AIAA)