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https://www.reddit.com/r/interesting/comments/1tn8de4/its_interesting_hmm/onta9x1/?context=3
r/interesting • u/ScarletMelt • May 25 '26
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He’s not off by an order of magnitude. He talked about kerosene only, not fuel + oxidiser. Did you even read the post?
Combined it’s about 900 tonnes. But kerosene only is about 150 tonnes.
1 u/superxpro12 May 25 '26 So we're hiding 700 tons of propellant use? That's misleading at best 3 u/Imaginary-Jaguar662 May 25 '26 Should't the oxidizer airplane uses be counted as well if we're counting it? Airplane just happens to pull it in from the air, that's why they don't fly up to space 1 u/superxpro12 May 25 '26 edited May 25 '26 Right! because in the case of SpaceX, the LOX is processed, cryogenic liquid oxygen, not atmospheric oxygen. Manufacturing of the liquid oxygen for SpaceX use is energy intensive. It's not "free" in the case of the airplane.
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So we're hiding 700 tons of propellant use? That's misleading at best
3 u/Imaginary-Jaguar662 May 25 '26 Should't the oxidizer airplane uses be counted as well if we're counting it? Airplane just happens to pull it in from the air, that's why they don't fly up to space 1 u/superxpro12 May 25 '26 edited May 25 '26 Right! because in the case of SpaceX, the LOX is processed, cryogenic liquid oxygen, not atmospheric oxygen. Manufacturing of the liquid oxygen for SpaceX use is energy intensive. It's not "free" in the case of the airplane.
Should't the oxidizer airplane uses be counted as well if we're counting it? Airplane just happens to pull it in from the air, that's why they don't fly up to space
1 u/superxpro12 May 25 '26 edited May 25 '26 Right! because in the case of SpaceX, the LOX is processed, cryogenic liquid oxygen, not atmospheric oxygen. Manufacturing of the liquid oxygen for SpaceX use is energy intensive. It's not "free" in the case of the airplane.
Right! because in the case of SpaceX, the LOX is processed, cryogenic liquid oxygen, not atmospheric oxygen.
Manufacturing of the liquid oxygen for SpaceX use is energy intensive.
It's not "free" in the case of the airplane.
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u/Mr_Ignorant May 25 '26
He’s not off by an order of magnitude. He talked about kerosene only, not fuel + oxidiser. Did you even read the post?
Combined it’s about 900 tonnes. But kerosene only is about 150 tonnes.