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I was just watching a video of the head NASA guy. Looks like he wants to go straight to Block ?? SLS heavy lifter and kill off all the other versions to speed up the heavy lift capability and move man ratings to other rockets. If SLS cant get their stuff together then just suck it up and move to the commercial rockets and be done with it. Also, Trump wanted and got funding for a permanent moon orbiting station called Gateway, which is really cool. Its a highly modular system that can be expanded on. It would take 2 Falcon heavies to 1 SLS rocket but still be cheaper they figure by a cool $1 Billion. SLS would still be the king of all rockets and the best way to get really heavy 1 piece items up. View Quote |
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Starship FTW. https://instagram.fbed1-2.fna.fbcdn.net/vp/c95793a89c14b35df4f33cf2977cd6f0/5D23C3F2/t51.2885-15/e15/52008548_585195841892790_8363065123024319392_n.jpg?_nc_ht=instagram.fbed1-2.fna.fbcdn.net ^^^ This is what we need to get behind if we truly want to open up the skies. View Quote View All Quotes View All Quotes Quoted:
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It is a shame that we passed up on the Ares I. The Ares V and SLS were pipe dreams as heavy lifters that burned hydrogen through expensive Space Shuttle Main Engines on a single use main stage. Unless someone parks a nuclear reactor at an atoll somewhere in the middle of the ocean to fuel up Robert Truax' Sea Dragon, hydrogen doesn't make sense to me as a heavy lifter main stage. https://instagram.fbed1-2.fna.fbcdn.net/vp/c95793a89c14b35df4f33cf2977cd6f0/5D23C3F2/t51.2885-15/e15/52008548_585195841892790_8363065123024319392_n.jpg?_nc_ht=instagram.fbed1-2.fna.fbcdn.net ^^^ This is what we need to get behind if we truly want to open up the skies. |
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Somebody quoted 21 tons TLI upthread. That’s with a low efficiency kerosene upper. Build a raptor methane upper and you will easily have enough total impulse for Orion. Or even better, use a Centaur for a kick stage. At that point, you have a dual launch option with two falcon heavies. View Quote View All Quotes View All Quotes Quoted:
Quoted: The Orion Capsule and service module combined service to flight loads is 25 tons. That’s with a low efficiency kerosene upper. Build a raptor methane upper and you will easily have enough total impulse for Orion. Or even better, use a Centaur for a kick stage. At that point, you have a dual launch option with two falcon heavies. Injected mass will be 58,400lbs. Source is NASA Orion quick facts pdf What do you mean by a dual launch option with 2 falcon heavies? |
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Neither of the falcon designs are reaching the moon. It takes more Delta v to go from low earth orbit to the moon than it takes to reach low earth orbit. To give you an idea of how much it takes to reach the moon the Saturn V moon lander fully fueled weighed more than the falcon 9 can even put in low earth orbit. That was just the lander not the command module or the stage that got everything to the moon. View Quote View All Quotes View All Quotes Quoted:
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Quoted: SpaceX was never even all that interested in doing Falcon Heavy. Their original plan was to go from Falcon 9 to BFR and eventually phase out F9. Enough customers/potential customers asked for it that they said "fuck it, lets give it a shot, how hard can it be to strap 3 first stages together?" As it turns out, kinda hard. The current regular block 5 Falcon 9 is almost as powerful as the original Falcon Heavy design was. The first circa 2011 intended to be about Delta IVH size (~28 tonnes to LEO), now Falcon 9 can do 23 tonnes by itself now and Falcon Heavy's payload increased to 63 tonnes SpaceX has already said the FH could take Crew Dragon around the moon and had plans to do so but decided to not certify FH for human spaceflight and wait for BFR instead. Technically it is capable. |
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The first iteration of SLS uses basically a Delta IV upper stage. The SLS, Orion, and Ares so far have taken $50+billion... And the SLS uses no new engines and mostly shuttle hand-me-downs. SLS is a dumpster fire of biblical proportions. View Quote View All Quotes View All Quotes Quoted:
Quoted: They delayed the second stage development $$? The SLS, Orion, and Ares so far have taken $50+billion... And the SLS uses no new engines and mostly shuttle hand-me-downs. SLS is a dumpster fire of biblical proportions. The folks that erased years of computer tapes with design data s they could recyle them on the Shuttle program. Huge amounts of design and test data from Apollo have been erased. Gone. And the people that performed the work are slowly but surely dying in old age. I know a guy that worked on the development of the bearings for the crawler to move the Saturn V. All the data is gone. The rollers in the bearings where around 12 inches in diameter and about 16 inches long. He had one in his office at NRO. A gigantic steel cylinder. You needed a hand truck to move it around. He has threatened to leave it when he retires. |
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Lander was 17T, CM+SM for earth orbit was 28T so the lifted mass was 49T, let's add a few for hardware and call it 55T. This is in range of FH to LEO. Launch a newly developed TLI stage separately and dock to the lunar stack in LEO for a TLI shot. We have free return so no large return stage is required. In fact, before Saturn V was proven, this was how NASA had envisioned the moon mission. Once Saturn V actually worked, they went to a single shot method. SpaceX has already said the FH could take Crew Dragon around the moon and had plans to do so but decided to not certify FH for human spaceflight and wait for BFR instead. Technically it is capable. View Quote View All Quotes View All Quotes Quoted:
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Quoted: SpaceX was never even all that interested in doing Falcon Heavy. Their original plan was to go from Falcon 9 to BFR and eventually phase out F9. Enough customers/potential customers asked for it that they said "fuck it, lets give it a shot, how hard can it be to strap 3 first stages together?" As it turns out, kinda hard. The current regular block 5 Falcon 9 is almost as powerful as the original Falcon Heavy design was. The first circa 2011 intended to be about Delta IVH size (~28 tonnes to LEO), now Falcon 9 can do 23 tonnes by itself now and Falcon Heavy's payload increased to 63 tonnes SpaceX has already said the FH could take Crew Dragon around the moon and had plans to do so but decided to not certify FH for human spaceflight and wait for BFR instead. Technically it is capable. Edit: with Orion EM-1 |
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@webtaz99
Yeremyahu: The Ares V and SLS were pipe dreams as heavy lifters that burned hydrogen through expensive Space Shuttle Main Engines on a single use main stage. Unless someone parks a nuclear reactor at an atoll somewhere in the middle of the ocean to fuel up Robert Truax' Sea Dragon, hydrogen doesn't make sense to me as a heavy lifter main stage.
webtaz99: Hydrogen (and O2) have the very highest ISP for chemicals. Hydrogen does have low density, but NASA is willing to trade that for high ISP. View Quote |
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Elon Musk, the Huckster, doesn't have shit. His whole program is a sham bait to get government money to feed his failed organizations. all he lives off of are government handouts, like the 7500 he gets for each Teshamla sold. We should be giving money to real god fairing American companies that aren't propped up by uncle sam, like Boeing, Lockmart, and BAE. Not Weed smoking, North Korea supprting fraudsters. Edit: to prove this, they are building a fake rocket out in the desert, called a Hopper, lol. This thing has dents and huge weld seems, and yet he thinks people can get into space like that? Go smoke some more devils lettuce. View Quote |
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Lander was 17T, CM+SM for earth orbit was 28T so the lifted mass was 49T, let's add a few for hardware and call it 55T. This is in range of FH to LEO. Launch a newly developed TLI stage separately and dock to the lunar stack in LEO for a TLI shot. We have free return so no large return stage is required. In fact, before Saturn V was proven, this was how NASA had envisioned the moon mission. Once Saturn V actually worked, they went to a single shot method. SpaceX has already said the FH could take Crew Dragon around the moon and had plans to do so but decided to not certify FH for human spaceflight and wait for BFR instead. Technically it is capable. View Quote View All Quotes View All Quotes Quoted:
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Quoted: SpaceX was never even all that interested in doing Falcon Heavy. Their original plan was to go from Falcon 9 to BFR and eventually phase out F9. Enough customers/potential customers asked for it that they said "fuck it, lets give it a shot, how hard can it be to strap 3 first stages together?" As it turns out, kinda hard. The current regular block 5 Falcon 9 is almost as powerful as the original Falcon Heavy design was. The first circa 2011 intended to be about Delta IVH size (~28 tonnes to LEO), now Falcon 9 can do 23 tonnes by itself now and Falcon Heavy's payload increased to 63 tonnes SpaceX has already said the FH could take Crew Dragon around the moon and had plans to do so but decided to not certify FH for human spaceflight and wait for BFR instead. Technically it is capable. |
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Meanwhile, the Dragon crew capsule AND its launch vehicle are starting the process of refurbishment after a successful fully automated supply run to the ISS.
Elon Musk and his companies may not be perfect but they do deliver the goods, faster than NASA and with more reusability. When NASA gets the SLS system working, say goodbye to those reusable shuttle program veteran engines. They're going to fly one more time and then they'll be free for the taking if you happen to be good at fishing in 10,000 feet of water. |
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Hydrogen (and O2) have the very highest ISP for chemicals. Hydrogen does have low density, but NASA is willing to trade that for high ISP. View Quote View All Quotes View All Quotes Quoted:
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The Ares V and SLS were pipe dreams as heavy lifters that burned hydrogen through expensive Space Shuttle Main Engines on a single use main stage. Unless someone parks a nuclear reactor at an atoll somewhere in the middle of the ocean to fuel up Robert Truax' Sea Dragon, hydrogen doesn't make sense to me as a heavy lifter main stage. Within the atmosphere, using hydrogen is outright retarded. The low density requires huge tanks, which generate massive drag, which negates the imagined efficiency bonus. In orbit hydrogen looks a bit better on paper, but the advantages are often still half imaginary. You may not suffer the drag penalty, but a larger tank still requires more tank mass. Hydrogen really has to be kept damn cold, so you need thicker/heavier thermal insulation. Hydrogen also loves to leak out of everything, which means you need thicker tanks, fancier tank liners and are more likely to encounter failures. Methane is probably the most practical fuel all around, even though it lacks the sexy specs on paper. |
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Quoted: Gross liftoff wt for Orion CSM assembly and LAS is 78,000lbs. Injected mass will be 58,400lbs. Source is NASA Orion quick facts pdf What do you mean by a dual launch option with 2 falcon heavies? View Quote You can either give the FH a methane 5meter upper stage to get its TLI throw weight up over 60,000. Should get the glow to orbit over 150,000 with the high efiency upper and the specific impulse gain. Either a raptor upper or a centaur kick stage. Then you could launch the Orion to TLI on one launch and a lunar lander to TLI on another. With a high energy upper stage, you can dual launch more than a single Saturn V. |
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First of all, you don’t need the las unless the crew goes up with the Orion. You can either give the FH a methane 5meter upper stage to get its TLI throw weight up over 60,000. Should get the glow to orbit over 150,000 with the high efiency upper and the specific impulse gain. Either a raptor upper or a centaur kick stage. Then you could launch the Orion to TLI on one launch and a lunar lander to TLI on another. With a high energy upper stage, you can dual launch more than a single Saturn V. View Quote View All Quotes View All Quotes Quoted:
Quoted: Gross liftoff wt for Orion CSM assembly and LAS is 78,000lbs. Injected mass will be 58,400lbs. Source is NASA Orion quick facts pdf What do you mean by a dual launch option with 2 falcon heavies? You can either give the FH a methane 5meter upper stage to get its TLI throw weight up over 60,000. Should get the glow to orbit over 150,000 with the high efiency upper and the specific impulse gain. Either a raptor upper or a centaur kick stage. Then you could launch the Orion to TLI on one launch and a lunar lander to TLI on another. With a high energy upper stage, you can dual launch more than a single Saturn V. |
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Quoted: First of all, you don't need the las unless the crew goes up with the Orion. You can either give the FH a methane 5meter upper stage to get its TLI throw weight up over 60,000. Should get the glow to orbit over 150,000 with the high efiency upper and the specific impulse gain. Either a raptor upper or a centaur kick stage. Then you could launch the Orion to TLI on one launch and a lunar lander to TLI on another. With a high energy upper stage, you can dual launch more than a single Saturn V. View Quote |
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Whats with the Nasa plans of only using Orion to go to the moon?
Can the Space X or the newer capsules from Blue orgin or the space plane from Sierra Nevada not go there with their craft as well? |
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NASA is also, at times, retarded. The obsession with hydrogen is one of those times. Within the atmosphere, using hydrogen is outright retarded. The low density requires huge tanks, which generate massive drag, which negates the imagined efficiency bonus. In orbit hydrogen looks a bit better on paper, but the advantages are often still half imaginary. You may not suffer the drag penalty, but a larger tank still requires more tank mass. Hydrogen really has to be kept damn cold, so you need thicker/heavier thermal insulation. Hydrogen also loves to leak out of everything, which means you need thicker tanks, fancier tank liners and are more likely to encounter failures. Methane is probably the most practical fuel all around, even though it lacks the sexy specs on paper. View Quote |
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Elon Musk, the Huckster, doesn't have shit. His whole program is a sham bait to get government money to feed his failed organizations. all he lives off of are government handouts, like the 7500 he gets for each Teshamla sold. We should be giving money to real god fairing American companies that aren't propped up by uncle sam, like Boeing, Lockmart, and BAE. Not Weed smoking, North Korea supprting fraudsters. Edit: to prove this, they are building a fake rocket out in the desert, called a Hopper, lol. This thing has dents and huge weld seems, and yet he thinks people can get into space like that? Go smoke some more devils lettuce. View Quote If it isn't |
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https://twitter.com/SciGuySpace/status/1106337152177180675
Eric Berger ? @SciGuySpace Am hearing varying ranges as NASA assesses new dates for first SLS flight. Median is around November, 2021. Supposed to be announced later this spring. View Quote This project is a complete dumpster fire. The schedule is moving back faster than the passage of time at this point. When the project was started in 2011 it was supposed to fly in 2016. Now in 2019 it'll probably fly in 2022.... 8 years and $20+ billion dollars to go from T-5 years to T-3 years. |
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Quoted: When SpaceX beats SLS back to the moon, I think alot of people will finally draw that conclusion. View Quote NASA got to the moon. That's awesome. But they live with that legacy like a 40yr old clinging to his high school glory days still living at his parents house. Meanwhile SpaceX is actually doing shit that is quite impressive without the political bullshit and wasted taxpayer dollars (I realize SpaceX is funded substantially by tax payers, but that money is spent on space rather than political bullshit). |
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Most people already have that conclusion. NASA got to the moon. That's awesome. But they live with that legacy like a 40yr old clinging to his high school glory days still living at his parents house. Meanwhile SpaceX is actually doing shit that is quite impressive without the political bullshit and wasted taxpayer dollars (I realize SpaceX is funded substantially by tax payers, but that money is spent on space rather than political bullshit). View Quote View All Quotes View All Quotes Quoted:
Quoted: When SpaceX beats SLS back to the moon, I think alot of people will finally draw that conclusion. NASA got to the moon. That's awesome. But they live with that legacy like a 40yr old clinging to his high school glory days still living at his parents house. Meanwhile SpaceX is actually doing shit that is quite impressive without the political bullshit and wasted taxpayer dollars (I realize SpaceX is funded substantially by tax payers, but that money is spent on space rather than political bullshit). Attached File |
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https://twitter.com/SciGuySpace/status/1106337152177180675 It looks like SLS wont fly now until basically 2022. This project is a complete dumpster fire. The schedule is moving back faster than the passage of time at this point. When the project was started in 2011 it was supposed to fly in 2016. Now in 2019 it'll probably fly in 2022.... 8 years and $20+ billion dollars to go from T-5 years to T-3 years. View Quote Meaning, give us more money "to troubleshoot the issue". They might even find more problems when they put it back on the launch pad. |
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You also left out that it is invisible, and its flame in air is nearly invisible. View Quote View All Quotes View All Quotes Quoted:
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NASA is also, at times, retarded. The obsession with hydrogen is one of those times. Within the atmosphere, using hydrogen is outright retarded. The low density requires huge tanks, which generate massive drag, which negates the imagined efficiency bonus. In orbit hydrogen looks a bit better on paper, but the advantages are often still half imaginary. You may not suffer the drag penalty, but a larger tank still requires more tank mass. Hydrogen really has to be kept damn cold, so you need thicker/heavier thermal insulation. Hydrogen also loves to leak out of everything, which means you need thicker tanks, fancier tank liners and are more likely to encounter failures. Methane is probably the most practical fuel all around, even though it lacks the sexy specs on paper. Kharn |
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How Many Flights on Falcon Heavy Could the SLS Program Buy? (4K) |
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View Quote That's gonna ruffle some feathers. |
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NASA is crushing SpaceX in diversity. https://www.nasa.gov/sites/default/files/thumbnails/image/diversity_diversity.png View Quote |
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But wait! There's more!
"Diversity & Inclusion NASA addresses issue of Limited English Proficiency (LEP) as required under Executive Order 13166, in part through translations of key strategic documents (below). The Agency has an LEP Plan for language assistance, including both translation and interpretation." "At NASA, we define diversity as the similarities and differences in the individual and organizational characteristics that shape our workplace. Inclusion is the means by which we optimize the benefits to mission inherent in our diversity, for example, the policies, procedures, and practices that an organization puts in place to create more inclusive work environments. By fostering an atmosphere of inclusion and respect for all, we can continue to value and appreciate the strengths afforded by both the commonalities and differences between us, not only our inherent differences but also in the styles, ideas, and organizational contributions of each person. This in turn will drive innovation, creativity and employee engagement." "Special Emphasis Programs NASA has designated seven special emphasis programs: the African American Program, Hispanic Employment Program, Federal Women’s Program, Asian American/Pacific Islander Program, American Indian/Alaska Native Program, Lesbian, Gay, Bi-sexual, Transgender and Queer, and Individuals with Disabilities Program." Incredibly, there's even more! Update on NASA’s Cooperation with Non-Traditional Partners "Cooperation with Muslim Majority Nations ? The Administration is seeking to enhance S&T cooperation with Muslim majority nations (Cairo speech, June 2009) – Science Envoy program – Centers of scientific excellence ? NASA’s ongoing and planned activities support this initiative ? NASA currently has limited cooperation with about half of the Muslim majority nations In effort to identify potential new cooperation in the last 4 months NASA has engaged senior officials from: – Saudi Arabia – Indonesia – Malaysia – Oman – UAE – Egypt |
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I was born in the early 80s, I’m a professional STEM nerd, and I love space, but NASA, for all its former glory, needs to be re-thought.
The nerds won whatever internal struggles occurred before I was born, and the agency has a much stronger and deeper affinity for science than for exploration. That is just flat wrong. As a government entity, NASA can accept much higher risks to life than any commercial endeavor, and is the natural home of human exploration of space. Space is hard, and it is our species’ future. NASA can whine and beg for more money, but either human space exploration will be much more prized than science, or NASA’s budget can stay flat. Rovers are cute, and planetary flybys make nice pictures, but without humans in space, deep into space, no one cares. There were plans to use Saturn V rockets for space stations and even a damn moon base back in the 70s, but we traded away that future for the Shuttle and ISS. I’ve toured the two complete Saturn V in Huntsville and the one in Houston. But for stick people in them and launching the mission, we could have had three more trips to moon. NASA has degenerated into an administrative self-licking ice cream cone, and the focus is away from people and onto unmanned, robotic mission. Until it unless this changes to an intense focus on human exploration, the public will find precious little support for NASA and any of its efforts. |
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