Our colleague, friend, and beloved instructor, George L. Donohue, passed away on April 23, 2026, at the age of 81.
Colleagues remember him as truly extraordinary—a gifted visionary, strategic thinker, and deeply principled systems engineer, all in one.
His career in engineering, public service, and academia placed him at the heart of many of the most consequential national defense and aviation challenges of the era.
Born on July 8, 1944, and raised in Houston, Texas, Donohue was educated at St. Thomas High School, where he developed a lifelong commitment to faith, intellectual rigor, and service.
He pursued undergraduate studies at Georgia Tech and the University of Houston before earning his MS and PhD in Mechanical and Aerospace Engineering (fluid dynamics) from Oklahoma State University in 1972. His dissertation was titled, "The Effect of a Dilute Drag-Reducing Macromolecular Solution on the Turbulent Bursting Process."
In the 1970s, Donohue conducted undersea systems research for the U.S. Navy and received the Secretary of Defense Meritorious Civilian Service Medal for his work on a Defense Advanced Research Projects Agency (DARPA) program.
He later joined the RAND Corporation, becoming Vice President of Project AIR FORCE, and served as Director for Strategic and Aerospace Systems at DARPA.
During the Cold War, Donohue was an influential voice on missile defense and nuclear policy, challenging prevailing assumptions by asking whether systems made the world more secure.
In 1994, Donohue was appointed Associate Administrator of the Federal Aviation Administration (FAA), where he led efforts to modernize the U.S. air traffic control system. He was a driving force behind initiatives that led to the adoption of GPS and ADS-B, now foundational to modern global aviation.
In 1998, he joined George Mason University as a professor in the Systems Engineering and Operations Research Department.
At George Mason’s Center for Air Transportation Systems Research, part of the FAA National Center of Excellence for Aviation Operations Research, his research informed aviation safety (e.g., wake vortex), national airspace simulation, and allocation of scarce airspace resources (e.g., auction of runway slots).
During this period, he authored two books: Air Transportation System Engineering and Terminal Chaos.
As an instructor of the systems engineering capstone course, Donohue influenced generations of students with his commitment to physics‑based design and a deeply principled approach to serving humanity. Many of these projects influenced federal, state, and municipal policies. His students have gone on to become leaders in industry, working on the most challenging systems problems to improve the quality of life for all.
Friends and colleagues say they can still hear his rigorous, thoughtful feedback on their work —sometimes summed up as, “that’s a dog’s breakfast.” He was always right!
His impact—as an engineer, leader, educator, and mentor—will be lasting and profound.
He will be deeply missed.
No worries, George. We will take it from here.
Note: In lieu of customary remembrances, the family requests that memorial contributions be directed to the Donohue Engineering & Medical Science Scholarship Fund at St. Thomas High School, 4500 Memorial Drive, Houston, Texas 77007, or by visiting https://www.sths.org/support/fundraising/memorialgifts/.