Hypothetically , of course.lets say, a catastrophic event is gonna destroy the Earth, and some guy/s, with commonly available materials and knowledge wants to escape the planet (or if not possible, send a probe with a "message to the stars").Can a man make a Saturn V rocket in his garage/backyard/doomsday bunker?What will be the biggest challenges?What can be done in those scenarios?
>>16826916>https://en.wikipedia.org/wiki/Sea_Dragon_(rocket)
>>16826939>To lower the cost of the rocket, he intended it to be built of inexpensive materials, specifically 8 mm (0.31 in) steel sheeting>The rocket would be built at a sea-side shipbuilder and towed to sea for launch> It would use wide engineering margins with strong simple materials to further enhance reliability and reduce cost and complexity>The noise of the engine was so powerful it was the reason the rocket was to be sea launched; on land it would have torn itself apart from the vibrations, and crushed the launch pad>The rocket would have been able to carry a payload of up to 550 tonnes (540 long tons; 610 short tons) or 550,000 kg (1,210,000 lb) into LEO. This is enough to comfortably launch the ISS in a single launch (which weighs a "mere" 450 tons)W-where are the blueprints?Mad men were living in the space era...
just grab your shirt collar and yeet yourself into orbit
>>16826969Best part of 'For All Mankind' was the Sea Dragon launch scene. https://www.youtube.com/watch?v=faTQQ-fLFgY
>>16827007The key issue with that rocket is it's huge engines dome. The bigger the dome the higher it to build (exponentially). This is why SpaceX using many small raptors.
OTRAG is another example. Modular cheap construction as the primary design criteria. Also the potential for asparagus staging, so really a ksp esque rocket if ever there was one. No pumps, gravity/pressurized tanks meant really simple construction. The hardest part for a hobbyist would be the nasty propellant chemicals.
>>16826969>>16826939The sea dragon is a pipsqueek compared to project orion.
>>16827038“"I have been corresponding with Lutz for a few months now, and I have learned quite a few things. I seriously considered an OTRAG style massive-cluster-of-cheap-modules orbital design back when we had 98% peroxide (assumed to be a biprop with kerosene), and I have always considered it one of the viable routes to significant reduction in orbital launch costs. After really going over the trades and details with Lutz, I am quite convinced that this is the lowest development cost route to significant orbital capability. Eventually, reusable stages will take over, but I actually think that we can make it all the way to orbit on our current budget by following this path. The individual modules are less complicated than our current vehicles, and I am becoming more and more fond of high production methods over hand crafter prototypes." -- June 2006 Armadillo Aerospace Update[19]“I seriously think OTRAG is the answer. Would love to be proven wrong if someone knows another viable way to do it. The other one that might win is solid fuel rockets, they can be made very simply from relatively common materials. Their problem is the whole tank needs to be extremely strong (and heavy) because it has to handle combustion inside the fuel tank instead of just in the engine.
>>16827055the thing is, Uranium or anything nuclear related tend to be complex AND relatively harder to extract and refine. Just sayin'
>>16827055We used to be a great nation, capable of great dreams, and of turning those dreams into reality. For an example of how Orion would work, read classic sci fi Footfall by Niven and Pounelle. In it, aliens (who look kind of like elephants) with far superior technology fight the humans. It’s a great example of thinking about an alien psychology and how different their society would be than ours. And how a properly motivated earth could do crazy things. Another example is the US production in ww2- we made about 100 aircraft carriers in the few years of the war. We also built brand new shipyards from nothing, AND trained the workforces to churn out thousands of Liberty ships (because the existing shipyards and workforces were building warships). I wonder what it would be like for a modern, technologically driven banding together if society would be capable of. I think with automation and mechanization, to do a program like Liberty ships, step one would be to build a factory that makes huge quantities of robots of all types- cnc, 6dof arms, pick and place machines for tiny stuff, 3d printers, etc. then build the infra to feed and assemble the modules. I think that’s how mars will be colonized- build a factory to build the machines that will build many factories, and make it all automated and infinitely scalable and with positive feedback loops. If you didn’t have so few machines to amortize r&d over, you could make tons of 6-figure machines for maybe 4-figures. Economies of scale get insanely powerful. Think about car engines- there’s been hundreds of millions of them made in the last 100 years and they’re orders of magnitude more reliable, powerful, longer lasting, (and those aprcs literally didn’t exist at any price 100 years ago). If you can spend the engineering effort to optimize something like that it’s almost unrecognizable from what came before.
>>16827055was it niven's footfall where they used this ship?
>>16827195How much acid did you eat
>>16827055this is treated as a sci fi thing but the total explosive yield would be lower than a lot of atmospheric tests conducted in the 50's and it seems like it would work.Shouldn't someone take it seriously?
>>16827007the first couple seasons were actually pretty good. lots of space kino. then it sort of degenerated into a patchwork of liberal memes endlessly complaining about white guys. season four was basically just a long form union dispute inside a mars base. nothing else happened.
>>16827365Not much, lol.>>16827381If an asteroid was on a collision course with earth and we had months to years to plan for it, Orion style nuclear pulse propulsion would definitely be the way to handle it. With enough mass to orbit, and with hundreds of thousands/millions of m/s delta v, you could get to the asteroid really fast, and with tons of mass for payload. You’d be able to have 3 stage nukes which have essentially no upper limit on their power which would be able to push the asteroid out of its collision course.
>>16827302Yes. The Michael is neat, with 16” battleship guns and all.>>16827877>>16827381Our inability to do great things is caused by our safety first culture (among other factors). Back in the day, you’d be able to risk some workers, or some wildlife, or a scenic vista in the name of progress. - the Empire State building, Hoover dam, the interstate system, the manhattan project, etc Nowadays, everything takes 10-100x longer and is 100-1000x as expensive. Spacex’s Starship system is about to come online, and it will allow millions of tons into orbit, so much mass that even sci fi ships will be comically puny compared to what we put in space in the 2030’s.
>>16827469I quit after season two. Did they really have a gay, black Elon Musk type character in later seasons?
>>16827055
http://entityart.co.uk/ufology-explained-the-german-breakaway-group-psyops-disinfo-antarctica-reptilians-aliens-u-boats-nazi-ufos-technology-flying-saucers/
>>16828039he wasnt gay but yeah, he was a kenyan entrepreneur Musk sort of character, and he wasn't even all that bad. that was the black gay astronaut that went to mars. funny thing was they had him chimping out and starting fights and generally acting like an entitled homo,
>>16828376Kek>>16828392the best way to travel to Hyperborea, lol
>>16826969>where are the blueprints?
