US Space force will be reactivating the venture star ssto project
>>64989974irc the x-33 could otherwise work but they couldn't make the composite tanks good enough. But these days even startups are printing whole composite rocket sections so I guess it's just a matter of making it happen.
>>64989974>US Space force will be reactivating the venture star ssto projectNo they won't.>>64990021>irc the x-33 could otherwise workNo it couldn't. Chemical engine SSTO is fucking stupid on Earth and offers nothing remotely of value vs TSTO with reusable boosters. It's a scifi meme people like because it seems cool and scifi doesn't have to care much about physics or economics.
>>64990187Can you prove your point? Judging by how angry you sound, I think youre either stupid, brown or a salty slant
>>64989974So Gerry Anderson was right this whole time.
>>64990187>Chemical engine SSTO is fucking stupid on EarthIt's not for earth, it's for space doo doo head.
>>64990187>>64990238If you think that tinpot dictatorships are the only ones who hire shills to glaze them online, you've got another thing coming. Israel does it, the new administration does it, and a certain billionaire whose ego is still fragile after being the only one lame enough to not get invited to pedo Island does it too.
>>64989974that's honestly cool as fuck but why not just weaponize starship ? What will this do that starship doesn't ? (Except waste more tax money)
>>64990246So youre not going to explain why the venture star cant work?
>>64990238>Can you prove your point?Do you know what the Rocket Equation is? Do you know what dry mass fraction is? Or ISP vs thrust, or literally anything at all about this topic? Have you ever even just fired up KSP, even vanilla but better with one of the realism mods, and played around a bit?This is like asking to prove gravity, it's so fucking obvious and well known. There's no magic here, just the physics.>Judging by how angry you sound, I think youre either stupid, brown or a salty slantNice projection lol. The faggot tourist from a country with no rocket program and thus has no idea how actual rockets work outside of his video games instantly runs for the "you must be brown!" sob. The US will just keep winning with TSTO from SpaceX, Blue Origin, Rocket Labs and more while you jerk off to turdie dreams ok?>>64990245>It's not for earth, it's for space doo doo head.>it's not for launching from earthYeah. It'd be an extra gay and retarded design in space, but it'd be a dumb design on Mars too even if a different SSTO is reasonable there. It wouldn't look anything like that.
>>64990276So youre an angry chink who plays too much KSP? Why are you accusing me of being brown when youre the one screaming about American tech? Thats just silly
>>64990273Are you not going to explain why no SSTO has ever been done in human history and why this CGI will instead? You're the one shilling this shit, you defend it. Explain how it optimizes for different stages of the atmosphere, how it deals with the weight, and what sort of mass that gives you to orbit at what $/kg. Show us the math.
>>64990287>the /pol/troon chinksect is confused!>the /pol/troon chinksect hurt itself in its confusionMmm. Your copies of SpaceX do seem to be coming along but you've got a long ways to go.
>>64990288Sorry silly chink but you have to prove your arguement
>>64990296>"arguement"Sorry silly chink but you have to prove your argument :^)
>>64990304
>>64990276>the Rocket EquationIs it that song by the Foo Fighters?
>>64990288>explain why no SSTO has ever been done in human historyNothing is impossible with the help of our Lord Jesus Christ.
>>64990325Well, you'll need to learn about it if you ever want to go to space like America does, if you don't then whatever.>>64990328God made the laws of physics that humanity lives within. Being proudly ignorant of them is literally and unironically spitting on His Creation. There's nothing faithful about that.
>>64990256SLS is de facto cancelled, so old space had to call congress for a different way to get the big tax dollaridoos.By 2040 or so, if/when LEO industry might be a thing, we could maybe use such an SSTO concept as a personnell shuttle.
linear aerospike rocket engines make my peepee hard
>>64989974why?lockheed is a bunch of retards they should just buy an army version of starship like you have starlink -> starshield you could make starship -> starfighter or some other cool 'start-' name. the current starship upper stage is basically designed to do what they want to do
>>64991089they look cool but in terms of heat management its kinda retarded. there's like 20 'regular' rocket bells in that picture which i feel just needlessly complicate things vs multiple simpler independent engines like the raptor
>>64989974These kind of projects will not perform well due to fact of utilizing bi-propellants and even with closed cycle liquid fuel engine it will not have much specific impulse, if only Cold War lasted at least 10 more years and we could have seen engines utilizing tri-propellant engines with perhaps at least 50% more specific impulse per ton of propellant.
>>64991089I used to think that too. And I mean, shit, they do look really cool. But in practice they're actually unfortunately kinda bad. Like >>64991264 says they have awful heat management issues. They're also very heavy. And the advantage in theory in practice is vastly better solved by staging. The idea is that they'll perform optimally, automatically, regardless of atmospheric density. But in the real world the goal is just to punch out of the dense atmosphere as fast as possible, then you shift more horizontal and gain speed. By a mere 65000' or so (out of 800k-1.3 million ft minimum to the lowest initial orbits) your atmospheric pressure has already dropped over 98%. By 120k it's dropped 99.65% (so just 0.0035 atm). So most of a rocket's journey is in near to hard vacuum, and in turn you can just optimize the first stage and then dump it or send it back to base/ship and use vacuum optimized engines after. That's just enormously more effective.That leaves aerospikes as an engine looking for a problem. Like a lot of cool-but-impractical engineering in history. They're like the G11 of rockets vs the Raptor AR-15.
>>64991234this is an extra retarded video holy shit>make a big fat heavy thing whose only point is working in atmosphere>go all the way to fucking orbit with it on one stage so that you wasted mass fraction for nothingffs
>>64991360the entirety of pre-2015 orbital launch designs are basically irrelevant now. they were chasing engine efficiency. trying to make some kind of SSTO,flyback booster or almost-ssto with some expendable part. all of those designs dismissed the idea that you can just land a rocket of that scale on the ground without a massive fraction of it's mass dedicated to that landing system which was proven wrong in 2015.>>64991368it doesnt make it to orbit at stage separation i think its clearly implied that both stages are on a suborbital trajectory at that point. the upper stage is clearly a shuttle designed to land back on the ground thats why it looks like that
>>64991475>it doesnt make it to orbit at stage separation i think its clearly implied that both stages are on a suborbital trajectory at that point.Eh, looks more than 70-90km to me but I'll admit it's hard to tell. It's still a wasteful design for TSTO though.>the upper stage is clearly a shuttle designed to land back on the ground thats why it looks like thatThe upper stage there is clearly the Venturestar or something very close, which was designed around SSTO and aerospike engines. If you "just" want to land on a runway for whatever reason something like the X-37 makes a lot more sense, or some sort of focused pure lifting body, preferably in a fairing the whole launch so you don't have to care about too much asymmetric forces. That shape is also going to be a real pita to get through reentry.
>>64991516i dont think thats much higher than the altitude of recent starship stage separation tests.>>64991516>The upper stage there is clearly the Venturestar or something very close, which was designed around SSTO and aerospike enginestruethe whole point of that engine type is working well across different ambient pressures which does mean its less useful as a second stage (but aerospikes are still incredibly good at 50km-100km). but i dont think you could land the first stage booster the same way as a starship booster if it had an aerospike too. i think aerospikes have some degree of differential-thrust steering but its not anywhere near as good as the steering offered by raptor-style engine gimbals.starship-booster+venturestar-like shuttle would work but it was mostly done in this animation because it looks cool
>>64991561Yeah I recognize they just wanted to do something that looked neat but I agree it looks sillier then normal. >but aerospikes are still incredibly good at 50km-100kmNot really, the advantage over a conventional engine shrinks a lot and they're still really heavy and hard to cool. Vertical landing is a lot more efficient then horizontal, no need for wings/flight saves both a ton of dry weight and allows for far better reentry.>Orion DriveThat, however, is both a cool animation and a legitimately really cool project. One of the few drives realizable with known physics and material engineering that could offer legitimately transsolar or even near-interstellar capability (a nuclear saltwater rocket being the other I can think of). There's probably some alternative timeline where the US, rather then backing off the space stuff and doing the shuttle boondoggle, instead went from Apollo to concepts like Sea Dragon or Nova and actually established a real moon colony and orbital construction capability, then built an Orion ship in orbit and sent astronauts cruising around Jupiter and Saturn, exploring the moons there and shit. Given how many trillions we pissed away on stupid garbage instead, what a shame.
>>64991596we might not explore other systems in my lifetime but if i live to see a prototype zubrin drive i can die happy
>>64991629>we might not explore other systems in my lifetimeUnless we get some sort of super life extension tech that we get to actually use (vs restricted to some minimum hyperclass of the rich) that seems a certainty, even a really idealized NSWR maxes out around 7% c iirc, and a really good fusion Orion can get to maybe 10-11%. That'd be a 40-60 year journey to Alpha Centauri if it left today. But>but if i live to see a prototype zubrin drive i can die happyYeah I'd settle for any sort of nuclear drive at all really, and seeing humans on Ganymede or an outpost on Titan or something like that. It's impossible to predict exactly what it might be, because some of it depends on stuff like what sort of space resources get discovered and what sort of economics happen. A NSWR looks pretty practical in a lot of ways in terms of construction, but in terms of fuel it's actually a little harder because U235 is rare and expensive. So you'd want some sort of widespread breeding to produce U233/Plutonium to use instead, ideally fusion/fission based. Who knows what the politics and practice of that looks like. Or maybe someone discovers asteroids that are super rich in Uranium and solve the whole problem. Won't know that until we actually get out there.Some sort of light sail with big stellar class lasers might also be kinda cool. Or maybe a hybrid approach, use external to get up to speed and carry an NSWR to slow down on arrival.
>>64991683im pretty sure U235 should be as common on the moon,mars and the steroid belt as it is on earth according to current theories of planet formation. i bet if we get bases on the moon and send tons of prospector missions with drills we'll find uranium mines there.
>>64991708>im pretty sure U235 should be as common on the moon,mars and the steroid belt as it is on earthSure, but that's still "pretty rare", and more practically high grade deposits are really rare. Like, yeah in the abstract it's a few parts per million which is better then a lot of elements but it tends to distribute pretty evenly too which makes it more annoying to try to actually get useful quantities of. We don't have many real mines on Earth, that was always part of the big driver for breeding or using thorium cycles or whatever. But it's all probabilistic, so maybe we luck out and find some really nice rich deposits in the solar system pretty quick. Or maybe we don't and it takes us a few decades of surveying. Just saying that sort of thing is inherently tricky vs engineering, there's a real element of luck involved. I'm sure prospectors will be looking hard though, same as asteroids or whatever rich in other valuable resources. And tech advances plus not having to care about environmental issues might make it way cheaper to just process through tons of lower grade ore we don't consider worth it on Earth. Shit loads of space based power could mean we could do enormous resource projects?But someone will surely try some sort of torch drive project, and I sure fucking hope to be here for it.
>>64990187This guy is right>>64990238This guy is trollingThe best part of StarShip is LEO space stations are obsolete.
>>64990699They are going to try switching them to nuclear powered stuff. At least that will be useful than the Alabama river rock crusher
>>64991234Lockheed bought in with Firefly space
>>64991870cool company its a shamelockheed will ram it into the ground
Not that I've been keeping up with the news but have they made any advancement on picking a Lunar space suit? Last I heard they were experiment with electrical charges to keep moon dust off the suit like a reverse static electricity cling.
>>64991867>samefag ranjeet is still raging hours later.Pretty sad ngl
