Comments by "Stephen Villano" (@spvillano) on "Scott Manley"
channel.
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That stage is obviously no good. All of the other ones were good, that one isn't. So, upon return, SpaceX will replace that stage free of charge so that SpaceX can re-run their mission with working equipment.
Largely, to avoid a collision risk.
Seriously though, I'm with Scott, there's liquid also leaking, which suggests it's a LOX leak, likely from a ruptured line or connection. Shake and rattle you (along with vibration) that much, you'd fare far worse.
I'll always fare better though, as I actively avoid the propulsion stack when it's in use. Dad may have raised a dummy, but he didn't raise no fool!
I'll see myself to the door...
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Chet Carson no, man never walked on the moon. Shuffled, hopped, jumped, fell a hell of a lot, to the point where the team that built the spacesuits were near having massive coronaries. Walked, not at all.
Walking just ain't in the cards for creatures evolved under 1G, trying to move around under 1/6th G.
I've even said as much to Buzz Aldrin, which was greeted with a snort and nod. To which I gave a scout salute, as a full hand salute would've been inappropriate, neither of us being in uniform.
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@PureAmericanPatriot actually, I understand quite well. Not entirely certain though, as to which comment you were replying to.
Remember though, tolerances are for loading, shear, vibration, etc and can be cumulative, so typically there is some degree of excess to avoid unforeseen conditions, such as an engine thrusting out of spec in a multi-engine stage, in particular, the sudden change in load dynamics with an engine cutoff that was unanticipated.
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@charleshill9778 that's a different percentage than originally quoted, so how about some actual numbers and citations?
That asked, NASA has always, from day one, given contracts to contractors and gasp! paid them. That was quite well established back after Apollo 1 burned with the flash in the pan with the Phillips Report on one vendor underperforming. As the hearings at the time were on the Apollo 1 accident and that report was beyond irrelevant, it went nowhere. Oddly though, that vendor eventually was not the one making the CM and SM when we got to the moon, Grumman made the LEM, North American Rockwell made the CM and SM. With Grumman jokingly sending Rockwell a towing bill for Apollo 13 and Rockwell replying how they towed Grumman's LEM repeatedly to and from the moon... ;)
NASA designed some things, contractors built and completed designs or even used their own designs throughout the programs. As they well should, each to their level of competency.
The space shuttle being Boeing and Lockheed made, not NASA built.
SpaceX blew apart their own launch pad. NASA only blew up Wallops Island a few times. :P
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Well, a pure electric engine is possible. It'd have a bit less thrust, say around 1/80000th the thrust of an argon engine, but one could be made. It'd also be known of as an immense waste of energy, effort and equipment, as the heat from the damned thing would provide more thrust and still be far, far, far less than say that argon engine. As in, the Pioneer anomaly was detected after a decade... Solar sails would be more efficient and far faster, which still isn't saying much.
Still, there is the EM drive, powered by its free lunch system that ignores the laws of thermodynamics. And after all, who, other than Mother Nature can refuse a free lunch? On just needs to get an Alder Wand...
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