Page 3 of 7 FirstFirst 1234567 LastLast
Results 51 to 75 of 164
  1. #51
    Thailand Expat
    Takeovers's Avatar
    Join Date
    Nov 2008
    Last Online
    Today @ 10:58 AM
    Location
    Berlin Germany
    Posts
    5,696
    Why some people would go to Mars, or other places out there.

    I am tormented with an everlasting itch for things remote. I love to sail forbidden seas
    Watch it in HD and full screen if possible.

    http://www.youtube.com/watch?annotat...&v=YH3c1QZzRK4

  2. #52
    Thailand Expat
    Takeovers's Avatar
    Join Date
    Nov 2008
    Last Online
    Today @ 10:58 AM
    Location
    Berlin Germany
    Posts
    5,696
    8 hours from now, 6:30 CEST at the IAC congress in Adelaide Elon Musk will give a major update on his Mars plans. It will be streamed live. Let's hope the Q&A at the end will be better than last years. The lady asking him if she can come up to the stage to kiss him was one of the better participants.

    OTV-5 MISSION | SpaceX

    Important part will be the financing plans. He came to the conclusion that last years plan "stealing underpants" did not work out. Seems that was a South Park reference.
    "don't attribute to malice what can be adequately explained by incompetence"

  3. #53
    Thailand Expat
    Takeovers's Avatar
    Join Date
    Nov 2008
    Last Online
    Today @ 10:58 AM
    Location
    Berlin Germany
    Posts
    5,696
    The presentation on YouTube. Over 40 minutes.



    Using the system for point to point travel on earth. New York to Shanghai 38 minutes. Not sure to see that happen.


  4. #54
    Thailand Expat
    Takeovers's Avatar
    Join Date
    Nov 2008
    Last Online
    Today @ 10:58 AM
    Location
    Berlin Germany
    Posts
    5,696
    Two weeks since the presentation and I am still in the process of digesting it. More info is coming out, yesterday by President of SpaceX Gwynne Shotwell and a little by Elons friend and investor Multi Billionaire Jurvetson.

    The name ITS did not stick. Presently they are back to the name BFR (Big F.... Rocket now rebranded as Big Falcon Rocket) but that too may only be temporary until they can come up with something nice.

    Last year the capacity they aimed for was 300t to Low Earth Orbit. Seems it was too ambitious and beyond the financial strength of SpaceX, no support of NASA materializing. IMO it was never realistic to hope for NASA. The new version has only 150t to LEO, in fully reusable mode. Not too bad, it is the same as the famous Saturn 5 could do, expendable. Less beautiful as well.




    Last years version was destined to go to Mars. This years version is supposed to be able to do more different things so it can earn money. So

    Go to Mars and come back.
    Go to the Moon and come back.
    Do passenger service from New York to Shanghai in 38 minutes. This would be one of the longest flight times. Most other connections would be below 30 minutes.

    Initially I did not take that announcement by Elon Musk quite seriously. But now the more down to earth Gwynne Shotwell said the same. Also Elons friend Steve Jurvetson said, they can serve these connections at competetive prices. I am still somewhat sceptical. It would not only be technically and financially feasible. They will need to convince aerospace regulators worldwide that it is safe. I guess best case they could start flying regular passenger service in 20 years.



    They would fly from platforms out at sea and bring passengers with fast boats. Launches and landings are just too noisy to fly nearer to a City. This limits possible connections to coastal cities. But many of the big cities are located at the coast.
    Attached Images Attached Images

  5. #55
    Thailand Expat misskit's Avatar
    Join Date
    Dec 2009
    Last Online
    @
    Location
    Chiang Mai
    Posts
    28,965
    ^Perhaps a few of us will get to go on a flight if they have wheelchair access.

  6. #56
    Custom Title Changer
    CSFFan's Avatar
    Join Date
    Dec 2007
    Last Online
    Yesterday @ 10:52 PM
    Location
    Bangkok
    Posts
    8,113
    Quote Originally Posted by misskit View Post
    Perhaps a few of us will get to go on a flight if they have wheelchair access.
    We should get to go first, we'll be the experienced diaper wearers, after all.

  7. #57
    'ello 'ello 'ello Luigi's Avatar
    Join Date
    Dec 2014
    Last Online
    @
    Location
    Abuja
    Posts
    23,005
    ^ Reminds me of Valentina Tereshkova, female cosmonaut in the 60's that did 48 orbits of the Earth,first woman in Space in 1963, upon many other things.

    In 2013 volunteered to be the guinea pig on a 'one-way mission' to Mars if the opportunity arose and would benefit from a real life test dummy.

  8. #58
    Thailand Expat
    Takeovers's Avatar
    Join Date
    Nov 2008
    Last Online
    Today @ 10:58 AM
    Location
    Berlin Germany
    Posts
    5,696
    Quite some time has passed. There were no single big news but a lot of things have gone on, enough to keep us space nerds excited. With a number of recent remarks made by SpaceX people it seems they are shaping up for some big news. Time to sum up what has happened.

    The latest was an Interview with Gwynne Shotwell, President and COO of SpaceX. She is the one who keeps the wheels turning and the company on a financially sound base while financing most advanced research and development.

    In a recent interview with bloomberg.com she said they are presently building the first prototype of the BFS.

    https://www.bloomberg.com/news/featu...with-elon-musk

    Things are happening, hardware is being built.

    Gwynne Shotwell on makers.com


    Gwynne Shotwell talks about her love for math and science, what first sparked her interest in engineering, her work at SpaceX, and how she became one of Forbes' Top 100 Most Powerful Women in the World.

  9. #59
    Thailand Expat
    Takeovers's Avatar
    Join Date
    Nov 2008
    Last Online
    Today @ 10:58 AM
    Location
    Berlin Germany
    Posts
    5,696
    This is a photo Elon Musk has shown on twitter. It does not look like much but it was enough to get us space nerds extremely excited.



    It is the mandrel, the mold for cylinder barrel sections of the BFR spaceship. An essential part of the tooling to build the vehicle. Such tooling is very expensive and is proof they are going forward with the build. Part of what makes it so expensive is it is made of Invar, not ordinary steel. Carbon fiber will be wrapped around it and shape barrel sections of the tank. It then needs to be heated quite a lot and invar does not expand like other materials when heated.

    SpaceX are pressing for a fast time table. The rocket factory will take time to build so they erected a large tent to work in. They have leased a large area at the port of Los Angeles where they will build the factory. BFR is too big for land transport and they need to build it with access to the sea for shipping.



    Erecting this tent took 4 days early December 2017. Lots of activity there since then but little concrete information what exactly they are doing there until Gwynne Shotwell confirmed they are building the first BFS.

    A photo taken of the tent inside.



    Some words on the terms used. BFR, Big F. Rocket is the whole thing, the launch vehicle. Gwynne Shotwell used "Falcon" for the F word but internally they use another word.

    BFR has 2 components. The BFB is the booster, the first stage of the vehicle. BFS is the Big Fucking Ship, the second stage and a real space ship. It can deliver satellites to orbit. It can go to the moon and come back. This requires refueling in Low Earth Orbit, LEO. It can go to Mars and come back. This requires refueling in LEO and building a factory for rocket propellant on Mars to refuel for the return flight.
    Last edited by Takeovers; 29-07-2018 at 04:50 PM.

  10. #60
    Thailand Expat
    Takeovers's Avatar
    Join Date
    Nov 2008
    Last Online
    Today @ 10:58 AM
    Location
    Berlin Germany
    Posts
    5,696
    There are 4 people on the core of SpaceX. There are lots of brilliant and dedicated people working for the company but those four are essential and near irreplaceable.

    Elon Musk. Heart and soul and driving force of SpaceX. He sets the tasks. As others are saying he is not always right but surprisingly often he is right, even when the experts tell him it is impossible.

    Gwynne Shotwell, the engineer entrepreneur who keeps things going.

    Tom Mueller, the engine designer. He had worked in rocket engine design for other companies before he was hired by Elon Musk. The pace there got him so bored that he started building a rocket engine at home in his garage.

    When hired he thougt SpaceX was likely to fail but why not try. He can always go back to one of the traditional space cmpanies. But after a few months at SpaceX he realized after this experience he can never go back to the working environment of traditional space.

    He is behind the Merlin engine with record breaking thrust/weight ratio and low cost build. Very light for its capcity but otherwise quite mediocre. The best they could build with very limited money and time available. In engine design Tom Mueller is the only one equal to the best russian designers starting with Sergei Korolev, the father of russian space achievements.
    Presently he is working on the Raptor engine. The first US designed engine that is equal or better than the best the Russians have built. It uses the full flow staged combustion cycle, the most efficient and most complex engine design. Russia built one but it was never used in flight. Raptor will fly soon.

    Lars Blackmore, the trajectory specialist, hired from NASA. He is slightly less known than the other three to the general public. But he is the brain behind the development of vertical landing vehicles. Falcon boosters landing is his success. This will be essential for BFR. There may be other possible methods of landing here on Earth. But for landing on Mars or on the Moon it is the only method to land large payloads. SpaceX was able to do extensive testing without huge cost because the boosters did a commercial launch before they attempted landing. BFB and BFS are expensive equipment SpaceX can not afford losing many of them for testing. But they have the experience from Falcon boosters to help them succeed quickly.

    He mentioned a few days ago on twitter

    Seems like a good time to start working on landing BFR

    https://twitter.com/larsblackmore/st...57359278682113

  11. #61
    Thailand Expat
    Takeovers's Avatar
    Join Date
    Nov 2008
    Last Online
    Today @ 10:58 AM
    Location
    Berlin Germany
    Posts
    5,696
    Short recap on the timeline. It is aspirational and slips are likely but it is what they work on.

    2022 2 cargo ships go to Mars bringing equipment for the propellant factory and of course for proving the landing capability. the biggest ever landed on Mars is the Curiosity rover, just below 1t of mass. That's the limit of what NASA can do. Attempts on designing something that can land a larger payload were not very successful yet. BFS is supposed to be able to land 150t of cargo. Though I expect the first one to have a lower payload to be on the safe side. Still more than 100t.

    2024 2 more cargo ships with more equipment and 2 manned ships. Crew will be needed to get the propellant factory operational. Which means they need to stay at least 2 years on Mars until they have the propellant for a return flight and the return window opens.

    To meet those goals they have to meet a number of milestones. Early 2019 they want a BFS to begin suborbital flighs, first small hops extending to ~100km altitude. Then later going up to orbital or near orbital speed to test the very difficult reentry and landing coming from space. They begin with the second stage, the BFS, because it is harder than the first stage.

    If things go well, they will also do hops of the big first stage later 2019.

    2020 would be the year when they first fly the full stack BFR.

  12. #62
    Thailand Expat jabir's Avatar
    Join Date
    Jul 2016
    Last Online
    @
    Posts
    8,501
    Good stuff!

  13. #63
    Thailand Expat
    Join Date
    Oct 2017
    Last Online
    @
    Posts
    1,779
    Quote Originally Posted by Takeovers View Post
    2024 2 more cargo ships with more equipment and 2 manned ships. Crew will be needed to get the propellant factory operational. Which means they need to stay at least 2 years on Mars until they have the propellant for a return flight and the return window opens.

    2 manned flights to Mars by 2024 seems a tad fanciful.

    What is the furthest manned flight achieved by SpaceX so far?

  14. #64
    Thailand Expat
    Takeovers's Avatar
    Join Date
    Nov 2008
    Last Online
    Today @ 10:58 AM
    Location
    Berlin Germany
    Posts
    5,696
    Quote Originally Posted by foobar View Post
    What is the furthest manned flight achieved by SpaceX so far?
    How would that be relevant? SpaceX is moving forward.

  15. #65
    I am in Jail

    Join Date
    Oct 2014
    Last Online
    05-05-2019 @ 05:13 AM
    Location
    Earth
    Posts
    1,495
    foobar ~ "2 manned flights to Mars by 2024 seems a tad fanciful. What is the furthest manned flight achieved by SpaceX so far?"

    Quote Originally Posted by Takeovers View Post
    How would that be relevant? SpaceX is moving forward.
    Have you ^ seriously considered becoming a candidate,.....for an elected political office?....

  16. #66
    Thailand Expat
    OhOh's Avatar
    Join Date
    Jul 2010
    Last Online
    17-07-2019 @ 10:57 PM
    Location
    Where troubles melt like lemon drops
    Posts
    17,525
    Very interesting thread, excellent keep us posted. You mentioned the return fuel will be created on Mars. Are there all the ingredients available. You mentioned CO2 and water, H20. These have everything?

  17. #67
    Thailand Expat
    Takeovers's Avatar
    Join Date
    Nov 2008
    Last Online
    Today @ 10:58 AM
    Location
    Berlin Germany
    Posts
    5,696
    Quote Originally Posted by OhOh View Post
    You mentioned the return fuel will be created on Mars. Are there all the ingredients available. You mentioned CO2 and water, H20. These have everything?
    CO2 and water, plus plenty of energy. They will need huge solar array fields as long as they don't have big nuclear reactors. Roughly 1MW output for 2 years to produce propellant for 1 ship to return.

    CO2 is easy, it is the main component of the atmosphere. Water will be tricky. They need a landing site with plenty of ice below a soil cover of more than 1m. So they need digging equipment. Without propellant production no return to earth. That is why they can send people only when they have established existence of water. But propellant production is not trivial, they need people to get it operational. That means the first crew will need to stay 2 years. Lots of sites but off the equator by 40. They want to be as close to the equator as possible so they are still searching.

    Fortunately NASA has plenty of data on sites with water. But they need a site that is lowlying so they have enough atmosphere for braking and as near as possible to the equator for efficient solar panels. NASA is presently collecting data on up to 40 potential landing sites for manned NASA missions. It is amazing what orbital observation satellites can determine. Right down to available gravel sizes for construction purposes and about many minerals that may be needed.

  18. #68
    Thailand Expat jabir's Avatar
    Join Date
    Jul 2016
    Last Online
    @
    Posts
    8,501
    One huge problem is competition, which tends to rush people into cutting corners and error.

    2014: US agree to pay SpaceX ($2.6bn) and Boeing ($4.2bn) for a spacecraft to carry its astronauts to/from the ISS. Aside from the glory, there is a pot filled with more sweet billions and both sides would more than lie, kill for access to it.

    Since then, both projects have repeatedly delayed their progress and launch dates. Latest (?) says SpaceX is preparing for an uncrewed test in Nov18 and crewed in Apr19, while Boeing respond with uncrewed in 'late 18' and crewed in 'early 19'.

    If both sets of tests from either firm are successful, they can enter NASA's certification process.

    Meanwhile, last month the GAO (Gov Audit Office) predict SpaceX will complete NASA certification in Feb20, and Boeing Jan20. With all other variables being equal, this suggests that Boeing's 'early19' crewed test will be in March19, a month earlier than SpaceX's Apr19.

    NASA currently hitch rides on Russian Soyuz craft to get to/from the ISS, and the contract expires Nov19.

    Best result according to these dates is that NASA will have no way to get astronauts to/from the ISS between Nov19 and whenever the SpaceX and Boeing craft are ready, and this is based on the positive scenario that progress dates are realistic rather than propagandised, and with no more delays and no accidents, making it a real live danger that political egos will end up prodding NASA into compromising its own certification process.

  19. #69
    Thailand Expat
    Takeovers's Avatar
    Join Date
    Nov 2008
    Last Online
    Today @ 10:58 AM
    Location
    Berlin Germany
    Posts
    5,696
    Quote Originally Posted by jabir View Post
    Meanwhile, last month the GAO (Gov Audit Office) predict SpaceX will complete NASA certification in Feb20, and Boeing Jan20. With all other variables being equal, this suggests that Boeing's 'early19' crewed test will be in March19, a month earlier than SpaceX's Apr19.
    GAO blames mostly NASA for the delays. NASA is exceedingly slow in working on certification.

    But you are posting on the wrong thread. This is the Mars thread and there is a parallel space thread.

  20. #70
    Thailand Expat
    Takeovers's Avatar
    Join Date
    Nov 2008
    Last Online
    Today @ 10:58 AM
    Location
    Berlin Germany
    Posts
    5,696
    SpaceX keeps working on a Mars base. Not only the transport system but also ground infrastructure. They involve a variety of companies and organizations in their effort. The event was located at the University of Colorado, Boulder. The Mars Society by Robert Zubrin has its headquarters in that area also.

    https://twitter.com/NASAWatch/status...411298816?s=09

    A list of participants, taken from the twitter conversation.


    Educational Institutions:

    Arizona State University
    Brown University
    Colorado School of Mines
    University of Colorado, Boulder
    Lunar and Planetary Laboratory, University of Arizona
    University of Florida
    MIT
    University of Central Florida
    University of Western Ontario
    Planetary Science Institute
    LASP / University of Colorado, Boulder

    Space Agencies:

    NASA HQ
    NASA Ames
    NASA Marshall
    NASA KSC
    NASA Glenn
    NASA JSC
    NASA BAER Institute
    JPL/Caltech
    ASI (Italy)
    ESA (Europe)
    JAXA (Japan)
    MBRSC (UAE)

    Corporations:

    SpaceX/Tesla
    Aerospace Corporation
    ASURE
    Ball Aerospace
    Bechtel Corporation
    Caterpillar Inc
    EchoStar
    Freestyle Analytical & Quantitative Services, LLC
    Honeybee Robotics
    Maxar Technologies
    Schlumberger


    From the list you can see that companies who build heavy equipment and infrastructure are involved.

    Caterpillar has actually already worked with NASA on heavy equipment for Mars environment for a while.

  21. #71
    Thailand Expat
    Takeovers's Avatar
    Join Date
    Nov 2008
    Last Online
    Today @ 10:58 AM
    Location
    Berlin Germany
    Posts
    5,696
    Paul Wooster of SpaceX has made a presentation in the 2018 convention of the Mars society.

    In short they are taking advantage of the large payload of their BFS rocket to speed up going to Mars. The aim is to go as soon as possible. Not going for highest efficiency but robust technology with less initial efficiency. They can improve on efficiency over time while maintaining a presence on Mars. Aiming for more than a base in the Antarctic like McMurdo. Something that evolves into a village, a city.

    The YouTube video of the speech.


  • #72
    Thailand Expat
    Takeovers's Avatar
    Join Date
    Nov 2008
    Last Online
    Today @ 10:58 AM
    Location
    Berlin Germany
    Posts
    5,696
    SpaceX had planned to build their big Mars rocket with carbon composite material to make it lightweight for efficiency. Recently it seemed like they encountered some problems with that development. At least it would slow down progress. In parallel they were researching alternative materials. Then suddenly statements by Elon Musk and COO Gwynne Shotwell became very upbeat. These things left people somewhat worried what is going on. Maybe this cause Elon Musk to do a tweet storm with lots of information going on for many days. Little bits of information forming a new picture.

    First there was the announcement they have dropped carbon composites for metal. Not aluminium as all spacecraft have been for a long time but some material "heavy but very strong". This only increased the confusion. It sounded like maybe something they could build but it would reduce payload by a lot because it is heavy. The last rocket built from stainless steel was the Atlas Agena which was a balloon tank design. Balloon tank rockets are quite lightweight but they are stable only under pressure. Without pressure they can not even hold up their own dry weight.



    This was the end of the era of stainless steel rockets with balloon tanks.

  • #73
    Thailand Expat
    Takeovers's Avatar
    Join Date
    Nov 2008
    Last Online
    Today @ 10:58 AM
    Location
    Berlin Germany
    Posts
    5,696
    It was hard to imagine that SpaceX would use that technology for a rocket that is supposed to be reusable many times. Stainless steel not as ballon tanks was supposed to be very heavy.

    A while back SpaceX had hired a top specialist in advanced material technology. He is working for both SpaceX and Tesla. With him in the lead SpaceX has developed new steel alloys. Using that alloy and forming it at cryo temperatures, not hot, yields a material which can be used to build a rocket that is both stable without pressure and lightweight enough that the new design is at least as capable as the previous carbon composite design, possibly better. The surface will have a polished mirror shine. Imagine a surface like this. A ship from the Star Wars universe, the Naboo Royal Starship. Which fits well with the new name. Up to now they had a name that was widely used but not suitable for polite company. The BFR in short and an acronym for Big Fucking Rocket. The new official name for the SpaceX ship is Starship, while the first stage, the booster is called the Super Heavy.



    It will have no or very little heat shield. It is supposed to be cooled during reentry in an atmosphere using liquid methane. Something that has been researched by NASA and also by ESA but never been actually used.
    Attached Images Attached Images

  • #74
    Thailand Expat
    Takeovers's Avatar
    Join Date
    Nov 2008
    Last Online
    Today @ 10:58 AM
    Location
    Berlin Germany
    Posts
    5,696
    The next shock, especially for the experts, was Elons announcement that there would be pictures of the first test build within a month. Nothing was expected at all earlier than end of 2019, if that.

    Now there are fans of SpaceX everywhere and it did not even take a month for this to be seen.



    This was obviously a water tower being built at Boca Chica, Brownsville, Texas. The company building it was a company specialized in water towers. A local jokingly mentioned that this has 9m diameter like the Starship and must be the beginning of that build mentioned by Elon Musk. Plenty of laughing about this.

    Then this. Something like legs were added.


    A few days later it looked like this


    Other structures built at the same site.


    At this stage Elon Musk confirmed that this is the first component of the Starship development. Not a full Starship of course but it will do short hops. Initially up to 500m altitude, later up to 5km as documented in licenses Spacex has requested. The fans like me are excited, the spaceflight experts are ready to quit. They can no longer understand the world if this ever flies. First flights in March or April and then Elon Musk is going to give a major technical presentation on the new design including capabilities.
    Attached Images Attached Images
    Last edited by Takeovers; 03-01-2019 at 01:40 AM.

  • #75
    Thailand Expat
    Takeovers's Avatar
    Join Date
    Nov 2008
    Last Online
    Today @ 10:58 AM
    Location
    Berlin Germany
    Posts
    5,696
    Fans put the different pieces together using photoshop.



    This is a giant. But it is actually shorter than the planned real Starship which will be over 50m high at 9m diameter. This is the second stage which is traditionally the small part. The first stage, the booster is much bigger even. In the meantime Elon said the first full Starship test version is being built in San Pedro, at the port of Los Angeles where they are working in a temporary structure while a big factory is erected. The first version of the first stage, the Super Heavy will follow.

    When asked on twitter if we will see an orbital flight in 2020, Elon answered, 60% chance of first orbital flight in 2020 with the chances increasing after the design change. Which is again madness. After many delays the big NASA rocket, the SLS Block 1 is expected to fly no earlier than 2021. The big but not nearly that big rockets of Jeff Bezos' Blue Origin and of ULA are also scheduled for 2021.

    More of a diagram giving the function of the different parts.

    Attached Images Attached Images

  • Page 3 of 7 FirstFirst 1234567 LastLast

    Thread Information

    Users Browsing this Thread

    There are currently 1 users browsing this thread. (0 members and 1 guests)

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •