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FAA Approves Many More Aircraft and Engines for Swift Unleaded Fuel

Jonathan Welsh
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Jonathan Welsh

The FAA plans a transition to unleaded avgas by the end of this decade. [Credit: Shutterstock]

The general aviation fleet’s planned transition to unleaded fuel is picking up steam.

Swift Fuels announced that the FAA has expanded its list of piston aircraft to run on the company’s 100R unleaded avgas. The agency has added more than 1,200 engine models and 1,600 airframe types to the fuel’s supplemental type certificate (STC), affecting a broad range of aircraft from modern Continental and Lycoming-equipped models to antiques powered by Hornets, Wasps, and Whirlwinds.

Jonathan Welsh

Jonathan Welsh is a private pilot and lifelong aviation enthusiast who has been a reporter, writer and columnist for 35 years. His career includes stints with the Wall Street Journal, Flying Magazine and the Aircraft Owners and Pilots Association. He recently returned to Firecrown to lead Aviation Consumer.