IDK what the deal is with Elon's rocket's and what the real stat's are because he either misquotes them (often) or they are not what they supposedly
are. In the video above he mentions it's the first time that a rocket has been this big (in the heavy or "super heavy" class) and mentions that it
has 5 million lbs of thrust and the payload quote isn't really correct as it is relative to where it is being sent (LEO vs Moon vs Mars, etc).
I've looked for stats on his rockets and I've found different numbers on just about every source, all within about 20% of each other, but still, big
differences when talking about 5 million lbs. Now the Saturn V had about 60% more thrust than his 5 million lb quote at 7.9 million lbs of thrust.
Now IDK how Elon can be so unaware of previous numbers as he doesn't seem like the type to be unaware of these things. I'm wondering if he is
discounting the Saturn V and doesn't believe in it, like it was fake (like the total thrust was fake, only a fraction was needed for the "hoax") or
Almost everytime this guy talks it seems like he is an ill prepared actor who thinks he'll just "wing it", like he kind of remembers most of the
numbers and things surrounding what he is talking about, but mixes up super important details that no one in his position would forget or mix up. IDK
why he does this, maybe he thinks everyone else is too stupid to catch on that he either doesn't know what he is talking about or just doesn't care.
The quote is talking about currently active launchers.
As for all of the different numbers given, the systems have been tweaked steadily over the course of development, through things like "densifying" the
fuel (making it really cold) re working the ratios of the turbopumps, or entirely more developed versions of the same engine. Then there is that
different missions and intended orbits require different thrust profiles, meaning that one mission may not require the maximum thrust, and the thrust
can also differ by altitude due to the density of the surrounding atmosphere. Yet another thing is the shape of the engine bell can completely change
the thrust profile.
It wasn't until about last year that the Falcon 9 design was "done", as in the majority of the design was frozen and no new iterations were planned.
Normally you don't see such rapid innovation in a single launch system, and there is a lot of new and old numbers floating around being misquoted due
to context that really muddies the waters.
Here is a decent overview of the development of the Falcon 9, with a decent overview at the end on the Merlin engines it uses. theclimategap.com...
edit on 16-5-2019 by dubiousatworst because: article.
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