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Update Triggers Questions on Unleaded Avgas Progress

GAMA hosted the EAGLE roundtable, bringing together stakeholders looking for more transparency and urgency.

The purpose of EAGLE is to chart the safe and smart transition to an unleaded future for the entire general aviation fleet. [File photo: Shutterstock]
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Key Takeaways:

  • The general aviation industry is urgently working to replace leaded avgas by 2030, with multiple unleaded fuel candidates under development through both FAA-led and proprietary certification pathways.
  • Industry leaders are calling for greater transparency on fuel compositions and comprehensive testing beyond just octane, scrutinizing factors like toxicity, materials compatibility, and stability to ensure safety and reliability across the diverse fleet.
  • A critical concern is ensuring a methodical and transparent transition to prevent premature local bans on leaded avgas before a commercially viable, fully certified unleaded replacement is widely available.
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The clock ticks louder each week, it seems, as pressure grows to move forward with a viable replacement for the primary unleaded avgas in use in the general aviation fleet. And we need more transparency on the process—and the very recipes for the fuels in question—according to industry leaders.

To focus a lens on the issue—and compel critical questioning to the process—the General Aviation Manufacturers Association on Monday hosted a roundtable of stakeholders to the EAGLE (Eliminate Aviation Gasoline Lead Emissions) initiative to give an update on how things stand. The initiative seeks a complete replacement of leaded fuel by no later than 2030, with a sunsetting of the fuel while maintaining a high level of safety in GA operations, which it primarily affects.

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