alt Hacker News>Comparing battery energy density to fuel energy density usually ignores the fact that combustion engines aren't that efficient.
>>Jet-A has a much lower conversion to useful work than a battery
>Comparing battery energy density to fuel energy density usually ignores the fact that combustion engines aren't that efficient.
>>Jet-A has a much lower conversion to useful work than a battery
Jet-A that has been combusted doesn't require any lift.
Edit: Since I have an aerospace engineering degree, I'll post the 100 level concept. https://web.mit.edu/16.unified/www/FALL/thermodynamics/notes...