Earlier quoted context omitted.
Those problems were solved for cars, they can be solved for planes. We shouldn't use it. Bioaccumulation of heavy metals was understood very early. Everything has a cost, spraying lead everywhere should be higher than what we are willing to pay. I am guessing it's still allowed because people who fly planes can afford to lobby. I was astounded to find TEL was still allowed in aviation fuels. Rates of cancers etc are…
> Rates of cancers etc are higher near military bases due to fuel handling incidents. Avgas is only used in piston engines, and the military mostly flies turbines, which use ordinary jet fuel (which does not contain lead). They have some , but I think if you told the military "jets and turboprops only" it wouldn't be a big problem. (Not sure how they would train new pilots, however.) If you're looking for disease/dam…
https://en.wikipedia.org/wiki/List_of_active_United_States_m...
https://en.wikipedia.org/wiki/Cirrus_SR20
There might be some piston-based helicopters (too many to check), or drones.
Otherwise, yes, bangers are out.