Six months ago, Rocky Mountain Metropolitan Airport Director Paul Anslow didn’t want to talk about leaded fuel. He said he had "zero control" over the airport's use of it. Today, the airport is racing to become the first in Colorado to completely phase the fuel out.

Key things here:

The gas used in the small planes with piston-driven propellers has lead in it. Yeah, the same stuff that was banned from automotive fuel because it causes brain damage in kids.

That lead in the fuel airplanes burn? It ends up in kids blood

There’s a new fuel mix starting to be available which doesn’t contain lead, and which works for all airplanes. It’s available in some places in the US, but not all of them yet.

The FAA has a plan to make going lead-free a requirement by 2031…but right now there isn’t anything stopping airport owners (often local governments) from making the switch happen faster. Only thing which might stop this is that the Republican version of the FAA reauthorization bill contains a requirement that airports keep on selling leaded fuel forever, so it’s also important to stop that from becoming law.

  • jonne@infosec.pub
    3·
    1 year ago

    And IIRC, the lead contributed to long term reliability of the engine too, something you definitely want to have in a single-engine plane. You don’t want to switch fuels and end up with Cessna’s falling out of the sky.

      • Em AdespotonEnglish
        2·
        1 year ago

        Only sort of; the engines were designed so that the additives were important to combustion performance. Of course, the solution isn’t to keep using leaded fuel, but to rebuild the engine to be more reliable AND not depend on the additives.

        Running an old engine with modern fuel will definitely cause it to fail.

        • SkepticElliptic@beehaw.org
          11·
          1 year ago

          It’s only important for increasing octane. You would have to reduce the performance of the engine on order to prevent knocking.