Ordinary jet fuel is a hydrocarbon, a compound of carbon and hydrogen. When jet fuel is burned, in the engines, the hydrogen mates up with oxygen from the air yielding H2O or water. The carbon mates up with oxygen yielding CO2 or carbon dioxide.
Aviation Week features a seven page spread on "Sustainable Aviation Fuel" SAF for short. This miracle compound burns without producing CO2. The Aviation week spread claimed that all the industry needs to do is convert over to SAF and that will get the greenies off the industry's back.
In this entire spread Aviation Week does not tell us what a "Sustainable Aviation Fuel is made from nor does it say how the stuff is made. Nor what it costs. They have made enough SAF for a handful of flights in real aircraft and existing engines work just fine on the stuff.
This is the first I every heard of SAF. I have my doubts as to how much could be produced, especially produced at the cost of ordinary jet fuel, which is essentially kerosene.
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