Aviation Masters

In this in-depth episode of Aviation Masters, Mike Busch sits down again with George Braly to tackle some of the most urgent issues facing general aviation today.From aging aircraft fuel system failures to the FAA’s draft unleaded fuel transition plan, and from certification gridlock to PMA delays, this episode dives deep into what aircraft owners, mechanics, and industry leaders need to understand right now.If you own, maintain, or operate piston aircraft — this conversation affects you.⏱ Chapters03:00 – Elastomers, O-Rings & Why Old Seals Are Causing Fires07:00 – Upgrading to Modern FKM (Fluorosilicone) O-Rings11:30 – Why Fuel Leaks Don’t Always Show Up During Inspections18:00 – FAA Draft Plan to Transition to Unleaded Avgas21:00 – The Risks of Modifying Engines for Lower-Octane Fuel26:00 – How Retarded Timing Impacts Horsepower & Twin Safety33:00 – Is There Already a True Drop-In Replacement for 100LL?41:00 – FAA Reorganization: Why Certification Is Slower Than Ever48:00 – DERs, ODAs & Why Delegation Keeps Aviation Alive57:00 – PMA Parts, OEM Shutdowns & The Parts Supply Crisis1:04:00 – Is Certification Still Worth the Cost?1:08:00 – What Aircraft Owners Should Do Now📍 Subscribe to Aviation Masters for more long-form conversations with the people shaping the future of GA.

In this episode of Aviation Masters, Mike Busch sits down with legendary aeronautical engineer Jimmy Tubbs for a deep, wide-ranging conversation that spans more than six decades of aviation experience.From military engineering and piston engine innovation to PMA certification battles and the future of autonomous flight, this episode is a masterclass in how general aviation has evolved and where it may be headed next.Jimmy shares the untold engineering stories behind cylinder design, chrome vs. nickel processes, engine certification challenges, and the hard lessons learned while building some of the most influential piston engine components in modern aviation.This is a candid, technical, and deeply human conversation with one of the quiet architects of how we fly today.⏱ Chapters 03:00 – From Small-Town Texas to Aeronautical Engineering07:00 – Military Aviation, Engineering Labs & Learning to Fly12:00 – Inside ECI: Cylinder Reconditioning & Early PMA Work17:00 – Channel Chrome vs. Nickel Cylinders: What Really Matters27:00 – Building New Cylinders & The Birth of Titan Engines36:00 – TBO, On-Condition Maintenance & FAA Certification Reality42:00 – The Titan Cylinder AD: What Actually Happened53:00 – Engine Monitoring, CHT Management & Pilot Responsibility01:05:00 – Life After ECI: PMA Consulting & Supply Chain Challenges01:19:00 – Diesel Engines, Automation & The Future of General Aviation01:30:00 – Final Reflections on Innovation, Aging Aircraft & Passion for Aviation📍 Subscribe to Aviation Masters for more long-form conversations with the people shaping the future of GA.

If you have ever been told, “That’s just how piston engines work,” this episode of Aviation Masters might make you raise an eyebrow and then start asking more questions.In this episode, host Mike Busch sits down with George Braly, one of the most influential (and unapologetically analytical) minds in modern general aviation. Braly is an inventor, trial lawyer, entrepreneur, and the co-founder and chief engineer of General Aviation Modifications, Inc. (GAMI)—the company behind GAMjectors, Tornado Alley Turbo systems, and the FAA-approved high-octane unleaded avgas G100UL.This is not a surface-level conversation. It is a deep, technical, and refreshingly honest look at how innovation actually happens in aviation and why it is often resisted at every step of the way.⏱️ Chapters01:17 — Meet George Braly02:53 — Early Aviation Roots in Oklahoma04:51 — Learning IFR the Hard Way07:09 — From Aerospace Engineering to Law School08:59 — Buying a Bonanza and Returning to Engineering10:43 — Founding GAMI and Balanced Fuel Injectors12:29 — Calling the FAA Certification Bluff15:24 — Lean-of-Peak: Where Angels Fear to Tread17:10 — Fuel/Air Balance and Engine Monitor Insights19:01 — Validation from a Continental Engineering Legend22:05 — Building the Aircraft Engine Test Cell25:04 — Teaching Thousands of Pilots How Engines Work28:47 — Manufacturer Pushback on Lean Operations30:23 — Airline History Confirms Lean Mixture Operations35:11 — Tornado Alley Turbo and System Improvements38:08 — Flying a Turbo Cirrus SR22 at Altitude42:57 — Cirrus Adopts the Tornado Alley System46:02 — FAA Rule Changes and Engineering Workarounds49:19 — The Long Fight for Unleaded Avgas (G100UL)53:16 — Political Resistance Inside Certification58:15 — Restarting the Fuel Certification Effort01:02:31 — Detonation Testing at the Edge of Failure📍 Subscribe to Aviation Masters for more long-form conversations with the people shaping the future of GA.

Meet Mike Busch & Aviation Masters.Tune in for: ✈️ Expert insights from aviation pioneers and industry leaders ✈️ Deep dives into aircraft technology, maintenance, and engineering ✈️ Candid conversations about leadership, innovation, and problem-solving in aviation ✈️ Forward-looking discussions about where general aviation is headedSubscribe today & never miss an episode!