It’s taken 11 years of hard work but General Aviation Modifications, Inc – better known as GAMI – has finally won approval from the FAA for its G100 high-octane unleaded avgas.
GAMI followed the FAA Approved Model List (AML) STC process whereby the FAA issues the initial STCs with an AML of specific aircraft and engines, and then progressively expands the AML based on additional testing and data.
In further collaboration with the FAA, GAMI will complete two additional tests to expand hugely the scope of the Approved Model List.
At that point, G100UL avgas will be a straight ‘drop-in’ replacement for 100LL for most of the GA fleet.
GAMI is working with Avfuel Corporation, a leading global supplier of aviation fuel, to work through the logistics of distributing high octane unleaded avgas. Avfuel is establishing a supply chain to responsibly bring G100UL avgas to market on a commercial scale.
GAMI anticipates G100UL avgas supply will meet North America’s demand for high octane aviation gasoline within the next four years.
G100UL avgas can be mixed with 100LL in any proportion, and is compatible with the existing fuel infrastructure without modification.
Tim Roehl, GAMI president, said, “The FAA approval of G100UL high octane unleaded avgas is a truly huge development for the future of general aviation!
“GAMI and all of its employees have dedicated themselves to this project for over a decade. Now is the time for all of the stakeholders in the general aviation community to stand up and celebrate.
“These AML-STCs are the ‘beginning of the end’ for the continued use of lead in aviation gasoline.”