The FAA has recently issued certificates for 1,200 piston engine models and as of today 1,600 airframe models were added to our original 100R Supplemental Type Certificate which was first approved by FAA for our 100R unleaded avgas in September 2024.
The FAA has completed these major steps as part of the US government’s call to transition to Unleaded Aviation gasoline by the end of 2030. These various certification actions, orchestrated by the FAA’s Central Certification Branch, cover a wide swath of piston aircraft engines and airframes now approved via STC for the use of Swift Fuels 100R unleaded avgas – all of which comply with ASTM International fuel specification D8603.
- This includes engine STC’s for over 1,200 piston engine models from over 80 piston engine OEM’s including Lycoming (~395 models), Continental (~195 models), Curtis Wright (95 models), Pratt & Whitney (95 models) and many more. The official listing already appears in the FAA’s Dynamic Regulatory System (DRS) website click HERE .
- Today’s announcement includes STC’s for over 1,600 airframe models from numerous piston aircraft OEM’s including Textron/Cessna (~118 models), Piper (98 models), Textron/Beechcraft (~101 models), Grumman, WACO, Fairchild, Mooney, Stinson, and many more. The official listing will appear in the days ahead on the FAA’s Dynamic Regulatory System (DRS). The latest approved list is HERE.
Swift Fuels is the only company with a commercially available 100-motor-octane unleaded aviation gasoline available which is a) approved for specified FAA certificated engines and airframes (as outlined herein), and b) complies with an ASTM International approved “Production Specification” (D8603). Accordingly, 100R unleaded avgas is now expanding its commercial availability via deployments underway across dozens of US and international airfields. Only those aircraft and engines with proper registered STC’s can use the 100R avgas. Swift Fuels Forever STC’s can be purchased at www.SwiftFuelsAvgas.com Pilot’s who have already purchased a UL94 STC from Swift Fuels will automatically receive a 100R STC at no extra charge as part of our Forever STC program.
This announcement today represents Phase-I of our Swift Fuels unleaded avgas transition plan. These Phase-I approved engines and airframes represent certificated aircraft that routinely consume up to 56% of the 100LL avgas across the US. You can read more about our Swift Fuels transition plan at www.swiftfuelsavgas.com/FAQ. We anticipate the balance of the higher performance engines and airframe combinations to be added to our 100R STC / AML in Phase-II and Phase-III deployments expected during 2026, 2027 and early 2028. Please be patient as this high-performance test program completes this collaborative work with many experts of the FAA and OEMs.
When will the transition to 100R begin?
For the past 21 months, 100R unleaded avgas has been sold commercially in 5 US and 5 European sites. Pilot feedback from this initial market introduction has been reported to the FAA and is described by industry observers as very successful.
In the coming weeks, many airfields, flight schools and private users whose aircraft have utilized Swift’s UL94 unleaded avgas for many years will begin their transition to utilize 100R unleaded avgas while other airfields have chosen to start fresh now with 100R. These airfields are located across 29 different states (e.g. California, Colorado, Utah, Minnesota, Arizona, Florida, Wisconsin and many more.) In addition, international airfields so far approved for using 100R include the countries of Canada, Germany, France, Austria, UK, the Netherlands, and Australia. To add your location to the list of airfields using 100R, please contact your fuel distributor or our Swift Fuels staff for details https://www.swiftfuels.com/contact. Swift Fuels expects to have the initial Phase I transition from UL94 to 100R completed in about one to two months, starting this summer.
To locate airfields selling Swift Unleaded avgas, please visit our MAP on our website HERE or refer to Airnav or FOREflight or contact Swift Fuels for further guidance at (765) 464-8336. For the latest information on 100R availability, please monitor our website at https://www.swiftfuelsavgas.com/ and click on our MAP.
