Re:Ask HN: Is hydrogen likely to be a major source of power ...
by samatman on Wednesday September 23, 2020 @04:49PM
(#24571858)
> It astonishes me how far behind aviation is behind surface transport when it comes to sustainable fuels. They still use leaded gas!
It's important to qualify this: jet fuel contains no lead, and constitutes the vast majority of commercial aviation, and hence of emissions.
Jet fuel itself is kerosene, with some additives that aren't superb in raw form, but nothing so durable in the environment as lead.
A sibling comment does a fine job of explaining why avgas still contains lead, and to be sure, a plan to phase that out except where absolutely necessary would be welcome.
It's important to qualify this: jet fuel contains no lead, and constitutes the vast majority of commercial aviation, and hence of emissions.
Jet fuel itself is kerosene, with some additives that aren't superb in raw form, but nothing so durable in the environment as lead.
A sibling comment does a fine job of explaining why avgas still contains lead, and to be sure, a plan to phase that out except where absolutely necessary would be welcome.