ChrisSpace

This is different from what the title of the thread implies, and changes my answer from "I wish but no" to "where do I sign?"

My google search history auto-clears itself instantly whenever I google something, but I'm pretty sure it was "BFR construction" or "BFR construction progress" That gives me a massive metal cylinder to hide in, definitely big enough for a good shelter.

I don't know which categories they'd go into, but my top choices would be: 1. Myself (because reasons) 2. Isaac Arthur 3. Scott Manley 4. Andy Weir 5. Elon Musk's backup clone 6. A real journalist (Luke Rudowski?) 7. Bill Wurtz 8. Michael Stevens 9. [DATA EXPUNGED] 10. Randall Munroe 11. Tim Urban

or 12-16 Tyrannosaurus, which I think is a better unit of measurement here. I couldn't agree more... assuming things go as planned... [REDACTED] I need to watch that if it happens My mum and I discussed this when we watched the presentation. Her theory is that it's just because everything is happening so soon, and they're sending humans into deep space this time, and if anything goes wrong with the mission, SpaceX is basically [REDACTED] Also, it isn't too unusual, as the above posts have pointed out.

...and we don't know anything about those yet, I suppose. This is still two-thirds of that, so I don't see why it's worth the inefficiency.

Umm, I just re-watched the presentation and... First of all, payload capacity has dropped from 150 to 100 metric tons. I really hope the cost will scale down too. Second, the travel time to the moon is just... two days? How much extra Dv is that taking up compared to a normal 4-ish day travel time? Third, who's going to update wikipedia?

Here's a TLDR of my thoughts: I like the new design, I don't like that they changed the design while the first one is already under construction. I think the fins ARE the landing gear.

It's not about the parts, it's mostly about the fact that all the engines/reactors need lots of complicated equipment just to support and fuel them

Darian calendar: 217 Tranquility calendar: 50 KR calendar: Year Forty-Three

In that case it would be better to use a camera designed for use in space, like the cubesat one. It says it's a completely closed ecosystem so I assumed that includes oxygen. Would this necessarily be a bad thing? What if the payload is given a small spin to keep the air near the centre?

Minor update: I have some ideas for the payload. First, instead of using a normal camera, to save weight we could try one of the ultra-tiny ones: https://www.amazon.com/dp/B076HMSQ2L/?tag=097-20&ascsubtag=v7_4_3_1ier_49nu_0_x01_-srt- https://www.amazon.com/dp/B074SMM191/?tag=097-20&ascsubtag=v7_4_3_146f_3tsn_0_x01_-srt- Second, what about 3D printing some of the components for the payload (or rocket)? Things like the structure, tanks and so on. Third, how about this for a scientific payload: A few different biological specimens, which would be observed to further analyse the long-term impacts of microgravity and/or cosmic radiation on living systems for extended periods of time? Specifically I'm thinking we use one of these: https://www.amazon.com/dp/B005IZOB5M/?tag=097-20&ascsubtag=v7_4_3_133_hc_0_x01_-srt- If we use a self-sustaining ecosystem like that as a payload, all it'll need to be supplied with is light and thermal insulation. I think it's a good idea, of course the payload could instead be an Earth-observation satellite.

Some numbers on the cost/mass/thrust/Isp of such an engine would be useful. How does this compare with the earlier design?

I'll join once I get my main laptop back (the one that I can actually access my email with and that I have my extra info on) Agreed on all points, especially the first two and ESPECIALLY the second one. To make this at all practical we need the cost per kilogram to be $10,000 or less, preferably much less.

Did you.. did you go out of your way to avoid using the sources I listed? Actually you've done well, since having a pre-built cubesat makes literally everything way easier. 2U for the rocket's maiden flight, we won't really need anything more while testing the launch vehicle. 1) A simple cubesat on the first launch 2) If we use the NanoAvionics cubesat design, finding the cost/mass/volume should be easy For this we first need to have a full rundown on all our options for propulsion systems. Here's the best sources I can find on what we might be able to buy or build: http://aeroconsystems.com/cart/index.php?p=home http://www.watzlavick.com/robert/rocket/regenChamber/index.html http://www.watzlavick.com/robert/rocket/regenChamber3/index.html http://pages.total.net/~launch/ss67b3.htm http://www.maxentropy.net/rocketry/liquidproject/design/design.htm Perhaps you could upload the simulations onto youtube or something for extra publicity perhaps? Actually it's: 11) Purchase all required materials, parts, modules etc 12) Deliver everything purchased in 11 to construction site 13) Construct rocket 14) Transport rocket to launch site 15) Launch

Okay, so here's what I was thinking our roadmap should be: Launch 1: Test launch vehicle, deliver relatively cheap test payload into LEO (Cubesat, Tubesat or Pocketqbe) Launch 2: Launch much larger, more complex payload into LEO to confirm maximum lift capacity into LEO Launch 3: Test a satellite capable of reentry, landing and recovery Launch 4: Add new, small, upper stage to boost a small payload into deep space (exact destination TBD) It's now that I'll ask the obvious questions: How are we going to afford this, and who will purchase all the required parts and materials?

Okay, that is not what I had in mind. I was expecting that our payload would be a cubesat, or at least constructed out of cubesat parts besides the structure itself. To see what I mean, feel free to browse the following sources: https://www.cubesatshop.com https://www.clyde.space/products?page=1&subsystem= https://www.isispace.nl/products/ Using satellite parts already designed to be used in space takes a lot of uncertainty and guesswork out of the payload itself, and I can even see a few modules in the above that could be used for the rocket itself (flight computers, comms systems and decouplers in particular).

Try breaking those into smaller sub-categories, then I can get cost estimates as well as mass/volume estimates for them

Have you tried simulating the system in Realism Overhaul? After that, someone should start calculating the cost of each component. This is where I'm going to place my totally-not-at-all-biased vote. But seriously, it seems to be the best option. "Openrocket" is a useful software tool for designing model rockets. Besides that there's CoaDE, but it doesn't simulate engine performance in atmosphere, and Realism Overhaul which would be useful if the specific rocket parts could be "custom-made" by modders. Exactly what I was thinking. As I said, we need to find the cost of each sub-component as accurately as possible.

This exact question is pretty much the basis for... actually 2 novel ideas I have, plus a sub-story of Steel Sky (which is currently in the "not cancelled but postponed development for the tim being" phase of development). Unfortunately all my info is on my computer back at home so for now I'll have to go off memory. For staging, remember that even SpaceX had trouble with a multi-core rocket design. Best to use a simple "one stage above another above another" approach. Fuel depends on what can be afforded, but "R-Candy" and top-tier model rocket engines would be a good place to start. Guidance would best be done using a combination of reaction wheels and aerodynamic control surfaces, I think. CS is rather low-budget so it's probably a good "case study" regarding propulsion and navigation. Depending on your payload, that could be an engine for any stage, although I'd be curious to see the price tag. Depends on your propulsion capabilities, for example I have a simple example described here: https://forum.kerbalspaceprogram.com/index.php?/topic/165955-everyday-space-drives/ Those engines only burn for a few seconds at most. All seems to make sense to me.

Every single fictional story that leaves at least one character alive technically ends on a cliffhanger

Hello, so I'm trying to enjoy the Interstellar-Extended mod, but there's a lot of elements that I'm either 100% not going to use or that are too complex for me to easily adapt to. So, I suppose this is a minor mod request, if the fusion-based engines and reactors can be released as a standalone set (with Megajoules replaced with normal Electric charge). Specifically I'm referring to the Daedalus, Kerbstein, Vista and Magneto-Inertial fusion engines, and the Stellarator, MFC Tomahawk, Plasma Jet Magneto-Inertial and Magnetised Target Fusion reactors. I know it's a very specific request, but if someone would be kind enough to do it, that would be greatly appreciated.

Let me ask, how does food/water/oxygen consumption in this mod compare with reality? Do Kerbals consume more or less than humans?

So I'm 100% certain someone has asked this before but I can't look through 400 pages to find it, is there a submod or something that replaces Megajoules with Electric Charge? Also, why isn't there a large Lithium Hydride tank? Also, why does the Epstein Drive require so much power, or any power for that matter?

Hmm, well here's some things I'd be able to do under these restrictions (cost estimates are very approximate and in some cases outdated): Lofstrom loop: $30 Billion (reduces payload cost to orbit to $3 per kilogram, which would massively change space accessibility) Thorium energy systems: $0.2 Billion per 100MW Fusion energy systems: $0.7 Billion per 500MW Stratospheric geoengineering to halt climate change: $10-20 Billion Giving everyone food, water, education etc: no idea, probably in the hundreds of billions Large-scale wind/solar energy systems to render fossil fuel energy obsolete: no idea, probably in the hundreds of billions Fully funding various alternative/independent media groups: Under $0.1 Billion Purchasing every major gaming company and commanding the development of all the games: A few billion Permanent lunar research base: $40 Billion SpaceX Mars colony: $200 Billion for 100,000 inhabitants Asteroid Redirect Mission: $2.6 Billion Europa Orbiter: $2 Billion Titan Saturn System Mission: $2.5 Billion (planned multi-part Titan probe) Uranus Orbiter: $1.5 Billion Breakthrough Starshot: $10 Billion Seeing the world's reaction to all of the above: Priceless

I hear there's a game called "Kerbal Space Program" which is good. But seriously, KSP with RSS and other realism mods is probably the best choice. Besides that, Space Engineers with some realism-enhancing mods could qualify, as could Orbiter if there's an EVA mod.