[salimmadjd]

Anyone knows how much more efficiency is gained (due to reduced weight) once a jetliner consumes 50% of its fuel?

Curious if for flying it’ll be more practical to use electricity for some kind of direct or indirect carbon sequestration (to be carbon neutral) fuel generation and continue to fly with some type of combustion based fuel.

[zhoujianfu]

I know that stopping to refuel in the middle of a flight vs carrying all the fuel you need to go nonstop is about 20% more efficient because of not having to carry fuel to carry fuel.