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Middleton commission presses industry constraints on unleaded aviation fuel; pilot testifies on benefits
Summary
Commissioners discussed technical and regulatory hurdles to offering unleaded aviation fuel at Middleton — ASTM certification, STCs and engine/airframe approvals — while a local pilot testified that switching to 94 UL reduced lead in oil and lowered maintenance costs.
The City of Middleton Airport Commission spent substantial time on Jan. 8 reviewing the technical, regulatory and financial issues that affect efforts to bring unleaded aviation fuel to the airport.
Staff and commissioners outlined the core constraints: fuels approved for broad use generally need an ASTM industry specification, and some alternatives rely on supplemental type certificates (STCs) or manufacturer approvals that limit their universal use. Rich (airport operations/FBO…
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