So I’ve heard and seen the newest launch, and I thought for a private firm it seemed cool they were able to do it on their own, but I’m scratching my head that people are gushing about this as some hail mary.
I get the engineering required is staggering when it comes to these rocket tests, but NASA and other big space agencies have already done rocket tests and exploring bits of the moon which still astounds me to this day.
Is it because it’s not a multi billion government institution? When I tell colleagues about NASA doing stuff like this yeaaaars ago they’re like “Yea yea but this is different it’s crazy bro”
Can anyone help me understand? Any SpaceX or Tesla fans here?
Imagine you want to build a cabin in a very remote place in Alaska.
Getting there is quite difficult, you did it a few times in the 60’s but the path is so bad that you had to throw the truck away each time (around $45,000 per trip, for the truck + gas)
You are still planning to build your cabin but having to buy a new truck for each trip is not great, plus the fact that only one company can make this SLS truck so you can’t get more than once a year.
Building a cabin in these circumstances is close to impossible.
Now SpaceX makes a new Starship truck that can go all the way AND be reused. The trip from the hardware store to the build site now only costs you around $100 for the gas plus truck expenses AND you can now do the trip to the hardware store multiple times a day !
Now building the cabin becomes way more accessible.
Replace the Alaskan cabin with a scientific base on the moon or Mars and multiply the amounts by 100,000 and you have an approximation of the situation
Not much of a spacex fan, but the fact that they were able to prove reusability on the falcon 9 and starship when the main players - ULA, Boeing, fuck, everyone said it was decades away IF EVER gets my attention. it illustrates how there are blind spots in all industries where people have to be shown what is possible because they’ll never believe it and that dogma can stifle innovation for ages when left unchallenged.
NASA could have done this if they had the budget. Instead we’d rather give huge tax cuts to billionaires so they can build a private sector NASA to charge NASA exorbitant sums to use their private vehicles. It’s the most asinine and innefficient way of going about it.
No, NASA has the budget. They already spent $50 billion on the development of SLS and Orion, Starship development cost is estimated to be around $10 billion.
So in theory with the money they spent on SLS they could have built 5 starship program.
The problem is that NASA has to follow political interests, sometimes the political interests align with technical interest and we get great things like the Apollo program.
That’s a good point.
They also have a very tight tolerance of failure. Every failure made in the engineering process brings more and more scrutiny by those holding the purse strings in Washington.
Specially this. How space x handles failures is a very hard nono in my book. “But we test in the field” is what space x says, and as a software developer its like saying “we test in production”.
Yes youll get something use able faster, but its way way more costly in the long run and is nasty in between.
My arse they cant test this stuff on earth. We have simulations, models, calculations, test, everything. Yes, things can and will sometimes still fail when going in production ( in flight ) but you want to lower the risk of it failing cause its costly as fuck.
They dont seem to care though.
Also, im not saying what they are building towards is bad, it really really isnt, but their methods is… Bad
Iterative development like that isn’t uncommon in engineering as a whole. Simulation can get you a long way but there’s a hard limit to that. You don’t think spacex designed a starship to use without running extensive simulations to try and figure it out before hand right?
Sometimes you need to test in the field just to find out what bits you missed. Structural engineers will simulate and calculate extensively but they’ll still build scale models and test pieces because it’s the most reliable and effective way to ensure you’re covering as many bases as possible.
Its not an either/or situation here. They’re doing the testing and simulation and applying it IRL to find out where things break.
Space X has less bureaucracy and can pursue other commercial ventures. The amount nasa pays is high, but it’s still cheaper than continuing their old program
Plus NASA can’t afford the risk. If SpaceX failed, no big deal. We would have lost some money and everyone would ridicule Musk. If NASA tried it and failed, they would not only have lost five times the money, but would be parylized by investigations, audits, cutbacks. NASA does a LOT more than just rockets and it would all be at risk
Plus notice NASA has been investing in multiple commercial programs where possible. 3 big rocket programs. Two crew capsules and multiple cargo capsules. Multiple space stations, etc. NASA could not have created this redundancy on their own