Quote:
Originally Posted by jamesqf
If you're just comparing chemical energy, you need to also add in the weight of the oxygen from the air that's going into the chemical reaction, which IIRC is about 4:1 by weight. So if you had to carry around your own oxygen instead of getting from the air, you'd need (I think) about 35 lbs/gal.
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Wow,
Obviously missed expecting that when I typed post #6