>>13248738I really hate how dismissive people are about them
>lol scam you can use hydrolox to run on water - deboonked!!I mean consider energy costs:
electrolysis of 1kg of water to hydrogen takes about 250MJ and then 150MJ more to cool it down and liquefy it
heating 1 kg of water to 200°C takes 720 kJ - 555 times less energy
the ISP is about 50 s vs. 400 s, so you need about 8 times more propellant (and 8x more rocket) but that still makes it about 50 times more energy efficient than hydrolox rockets (back of an envelope calculation ofc)
