• FordBeeblebrox@lemmy.world
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    13 hours ago

    It’s an issue with machining tolerances of block/cylinder/piston/piston rings, older planes need lead to reduce the piston knock or it could damage itself. Modern engines have much tighter tolerances, but it would mean essentially rebuilding or replacing the whole engine on every piston engine plane. It would be great if we could phase out leaded Avgas but it won’t be going anywhere anytime soon

    • Captain Aggravated@sh.itjust.works
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      12 hours ago

      False! The industry is phasing out leaded gasoline in 2030. California signed a ban on leaded gasoline after 2031 into law. There are some aircraft out there that I wonder what’s going to happen, but a lot of the GA fleet is going to be well supported.

      In addition to that, there’s an expansion of the light sport rule in the works which should allow most of general aviation to advance past the 1970’s.

      • FordBeeblebrox@lemmy.world
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        12 hours ago

        I knew we were moving away from it but didn’t know Cali set a date, thanks for the info. I imagine there will be a big market for grease monkeys to put all this in place

        • Captain Aggravated@sh.itjust.works
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          11 hours ago

          There’s gonna be a lot of pencil whipping by A&Ps I think. If I understand correctly, the way they’re gonna deal with it is roll out a high octane lead-free fuel that just works, so most of the mechanic’s job is going to be putting new stickers next to gas caps and signing logbooks.