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SpaceX's Grasshopper VTVL takes a 40 meter hop

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  • Registered Users Posts: 2,372 ✭✭✭Westernyelp


    Balls. This is going to set everything back.


  • Registered Users Posts: 9,390 ✭✭✭irishgeo


    who pays for a new facebook satellite?

    any videos?


  • Registered Users Posts: 2,004 ✭✭✭Hmmzis


    Upper stage LOX tank area, according to SpX on Twitter. Very strange that it happened well before engine ignition at around T -3:00 min. Not much of the dangerous stuff is happening at that point. On NSF one of the tweets said it was a very hefty bang, so whatever happened happened fast.


  • Registered Users Posts: 18,103 ✭✭✭✭namloc1980




  • Registered Users Posts: 30,063 ✭✭✭✭Ghost Train


    Not what I expected, looks unrelated to the static fire of first stage


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  • Registered Users Posts: 9,390 ✭✭✭irishgeo


    are they going to have scrap the launch pad after that?


  • Moderators, Science, Health & Environment Moderators Posts: 3,643 Mod ✭✭✭✭Beeker


    irishgeo wrote: »
    are they going to have scrap the launch pad after that?

    No, the pads are built to take heavy poundings, a lot of damage around it including the tower (Strongback) so it will take a lot of repair but it should be back to normal fairly quickly. ( He said hopefully :) )


  • Closed Accounts Posts: 3,006 ✭✭✭_Tombstone_


    irishgeo wrote: »
    are they going to have scrap the launch pad after that?

    It cost 15million to put the pad from the Antares launch back together, so probably similar here. Prettiest explosion you'll ever see that antares.

    https://m.youtube.com/watch?v=jHMmMgdcOSU

    They have a second pad nearly built so a pad won't delay an already very delayed time table.

    The satellite company are looking for 50million or a free flight, having the payload onboard for the prelaunch is a new thing started this year to save money, I wonder will they stop that.

    http://mobile.reuters.com/article/idUSKCN11A0YV


  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 90,838 Mod ✭✭✭✭Capt'n Midnight


    The satellite company are looking for 50million or a free flight, having the payload onboard for the prelaunch is a new thing started this year to save money, I wonder will they stop that.
    It costs nothing to ask.

    Given the high failure rate of satellite launches and the cost of failure you can be bloody sure there's copperfastened contracts / insurance / signoffs in place.

    http://www.theregister.co.uk/2016/09/05/spacecom_seeks_cash_or_free_flight_from_spacex/
    Before the “pad anomaly” last week, Spacecom was the target of a $285 million takeover by Chinese outfit Xinwei – but the takeover was contingent on a successful Amos-6 launch.


    This comment may sum it up
    http://forums.theregister.co.uk/forum/1/2016/09/05/spacecom_seeks_cash_or_free_flight_from_spacex/
    I'm having a hard time imagining that liability isn't strictly determined by the contract, especially in a business as inherently expensive and risky as launching satellites. If Spacecom is whining about it in a press conference, I'm guessing they don't have a legal leg to stand on.


  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 90,838 Mod ✭✭✭✭Capt'n Midnight


    Unrelated. A while back I noticed that the first stage has nine engines but the second stage has only one. So not as much hardware lost on the upper stage as might be assumed. And if they could figure out how to use the aluminium-lithium tank as ion drive fuel...


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  • Closed Accounts Posts: 3,006 ✭✭✭_Tombstone_


    It costs nothing to ask.

    Given the high failure rate of satellite launches and the cost of failure you can be bloody sure there's copperfastened contracts / insurance / signoffs in place.

    Little Interview with CEO of Spacecom here over at spacenews, he talks a little bit about different insurances they have to get.


    Falcon 9 explosion could have ripple effects across space industry

    Waiting list ^^ of companies wanted to get stuff up to space.


  • Moderators, Social & Fun Moderators Posts: 12,619 Mod ✭✭✭✭JupiterKid


    Is this Elon Musk's enterprise? The same one that had a very successful launch and landing on the sea based launch pad?

    EDIT: I see that is was indeed. This is a bad setback but I'm still very confident that SpaceX can deliver its payloads that are in line for launch. It will cause delays but is not an absolute catastrophe. No lives were lost.


  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 90,838 Mod ✭✭✭✭Capt'n Midnight


    Rockets are risky, especially those without a long track record or if there have been big changes recently. Anyone who isn't basing their schedules on this is living in cloud cuckoo land. Anything above 90% reliability is something to write home about. To give an extreme example half of all missions to Mars failed.

    Yes man-rated launchers are more reliable but they are also more expensive.

    Atlas V claims to be reliable. It certainly isn't cheap. It's based on the best bits of older less reliable rockets. And like Soyuz it can trace it's ancestry back to 1950's ICBM's and blank cheques. The Centaur upper stage which sent OSIRIS-REx off on it's travels on Thursday was first flown successfully in 1963. The first stage engines are Russian.


  • Closed Accounts Posts: 3,006 ✭✭✭_Tombstone_


    space-gif-41.gif?w=640


    Hard to see a crewed spacex run to ISS next year now, they could be grounded for a year. I think it's pathetic carry on really. Rockets blowing up on the ground and a week later they don't even know why, Aliens maybe. Pathetic. Over half a century of Rockets and this is the best they can do. You have to go all the way back to 1959 - Titan 1 to find the last rocket that blew on the ground.



    Thats a savage looking explosion aswell actually!

    Lots of time for competitors to catch up now.

    I've wondered about the insurance end of things for awhile ( Governments just don't bother insuring) and theirs finally a good few articles knocking around since this failure. And now I'm not surprised their hasn't been much about it as most just don't bother with it! Lots and lots of info here, it's a tiny market (but growing now due to all the sats going up), only worth €750million a year, 50 insured launches a year! Usability insurance is gonna be expensive when it comes!


    You have launch insurance, orbital insurance, this SAT was insured under marine cargo for $285million, lucky, but as no launch (bit of debate whether you call this a launch) then no launch pad insurance?
    https://twitter.com/pbdes/status/771409983074426881


    copy/pasta
    Usually, an insurance business is built on high volume, low value, and predictability. Life insurance, for example, relies on large numbers of people paying small sums over time and dying within a fairly standard age range.
    “Space is the exact opposite. You have twenty commercially-insured launches a year, that’s it. Worldwide, it’s basically a catastrophe business,” Mark Quinn, now CEO of global insurance broker Willis’ space division, told Quartz last year. “You’re looking at one loss that can give you a hit of $400 million, and annual market premium is $750 million. One loss that burns more than 50% of the annual income for the entire market.”

    Indeed, in 2013, the market hit the red after $775 million in premiums were outstripped by more than $800 million in claims, according to industry data. That year, among other failures, a Russian Proton rocket carrying three navigation satellites exploded when its guidance sensors were installed upside down, and a youthful rocket company called Sea Launch put an Intelsat communications satellite right into the Pacific.

    The industry saw another weak year in 2014, paying out about $650 million in claims on $700 million in premiums, according to Willis records. A disastrous 2000 wiped out profits for years.
    But where there are risks, there are great rewards: From 2008 to 2012, space insurance premiums easily overtopped losses; in 2008, industry revenue hit a net of $600 million after payouts.
    The volatile market for space insurance.
    The volatile market for space insurance. (Willis)
    What are we insuring?

    Rockets are designed as use-and-discard items (though SpaceX and Blue Origin are pushing to make them reusable). The satellite is what actually gets insured.
    “We don’t insure our launches, nobody in the rocket business does, except for damage on the ground,” SpaceX CEO Elon Musk said last year after a Falcon 9 carrying cargo to the International Space Station exploded.

    But satellites cost millions of dollars—think of them as a multi-ton flying server farms welded into a collection of powerful transmitters—and have millions of dollars more riding on them, in term of contracts obligations.

    Assets like that demand financial protection, and satellite operators typically buy two products: Launch insurance, which covers the satellite from when the rocket ignites for launch until it is safely in orbit, and orbital insurance, to cover the failure of the satellite when it is doing its job in space—and more satellites are lost during their first year in space than during launch mishaps. If your satellite TV network goes down during the World Cup, someone has to pay.
    But even so, most satellite operators don’t buy insurance. As of 2013, only 212 orbiting satellites were insured, out of 1,300 currently active satellites.
    Notice that neither launch or orbital insurance applies to bad things that happen to a satellite before lift-off, which is why in the initial aftermath of the Sept, 1 explosion, many worried that AMOS-6 would be a total loss. Often, the satellite is not mounted on the rocket during pre-flight engine testing, but in the last year SpaceX has begun doing it more often to save time as it attempts to launch a rocket once every two weeks. (Carefully raising and lowering the 70-meter-tall rocket is a time-consuming process.)

    IAI is convinced that its insurance will cover the loss of the satellite and allow it to reimburse Spacecom. The latter firm had reportedly lined up a $285 million policy to cover the satellite during and after launch. Industry sources say that SpaceX will return either $50 million or a free launch to SpaceCom. “We don’t disclose contract or insurance terms,” a SpaceX spokesperson told Quartz.
    The heat is on

    Last week’s explosion has caused great consternation in the space industry. It’s rare for something to go dramatically wrong before the rocket’s engines are ignited; the last time, according to space historians, was in 1959. Until SpaceX can convincingly isolate and cure the problem, there will be uncertainty for commercial satellite operators, many of whom are relying on SpaceX to fly their birds and will face year-long waits for service from one of its competitors.
    And that may mean premiums are headed back up after hitting recent lows, potentially putting a crimp in SpaceX’s business if its clients see increases in insurance costs down the line.

    “Insurance goes in cycles—highly profitable, rates down; lots of losses, rates up—and we’re in a long, soft market trough right now,” Quinn said last year; insurers eager to gain business had written policies with low premiums for reliable technology. But more losses could lead to pressure from management to recoup costs through higher premiums.

    The space industry hit something of a turning point after SpaceX introduced cost competition into the business with its Falcon 9 rocket in 2010. It forced competitors to lower prices, creating opportunities for new businesses in orbit that leverage some of SpaceX’s advantages—new technology and a Silicon Valley-style willingness to experiment.

    The potential growth in the satellite business has brought new insurers to the table. Today, more than forty companies provide different kinds of space coverage, often in consortiums. This has led to record-low premium rates for the reliable-if-pricy European Ariane rocket and proven satellite platforms. In recent years, Russia’s somewhat failure-prone Proton rockets have been a major source of revenue, providing a third of industry premiums in 2014.
    If you count the engine test as a mission failure—and it is debatable, since it didn’t happen during a mission—SpaceX’s Falcon 9 now has a comparable success rate to the Proton.

    space-insurance-market.jpeg?w=940


    SpaceX, despite its relatively new rocket, had managed to obtain reasonable rates thanks to positive publicity and by being transparent about its technology. The company’s long-term partnership with NASA helps convince clients and their insurers that SpaceX can be trusted with their technology and money.
    But after last year’s mission failure and this pre-launch accident, underwriters for SpaceX’s clients may demand a higher price to cover their satellites during launch. Any hikes probably won’t hurt SpaceX’s ability to deliver the cheapest launches on the market, but it will be an extra hassle, especially as it looks to fly commercial clients on its forthcoming Falcon Heavy rocket.
    And the test fire certainly won’t help with the company’s most ambitious project, developing reusable rockets to replace the one-use versions currently in use, that are typically discarded after they deposit their cargo in space. The company thinks it can cut a further 30% in costs if it can reuse the first stage of the Falcon 9 rocket, and it has recovered six so far from successful missions.
    Just last week, SES, the European satellite giant, announced that it would launch a new communications satellite on the debut flight of a reused Falcon 9 rocket. But the recent accident could complicate efforts to insure cargo flying for the first time on a used rocket, even more so than on new Falcon 9s.
    “What you are underwriting is the performance of hardware; you’ve got a rocket flown 50 times successfully, that’s got a great rate,” Quinn told Quartz. “The hardest things to insure are first flight items, things that have never flown before.”
    Even harder, SpaceX and its clients may find, will be insuring something that has flown before.
    ^^What happened in 2000???


  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 90,838 Mod ✭✭✭✭Capt'n Midnight


    You have to go all the way back to 1959 - Titan 1 to find the last rocket that blew on the ground.

    The Soyuz T-10-1(1983) was a leakage of fuel and the flames coming in the rocket launch pad.Two seconds before its explodes, the crew was actived the Launch Escape Tower System for eject.
    https://en.wikipedia.org/wiki/Soyuz_7K-ST_No._16L
    I've wondered about the insurance end of things for a while
    ....
    ^^What happened in 2000???
    https://www.munichre.com/touch/space/en/Raumfahrt/Raumfahrtgeschichte/index.html
    Between August 1998 and May 1999, a spectacular series of six launch failures involving American launch vehicles – three Titan 4s, two Delta 3s, and an Athena – produced an overall loss of some US$ 3.5bn. The insured loss of US$ 743m was much lower because two of the Titan launches were for military purposes and therefore not covered by insurance (launch phase)


  • Closed Accounts Posts: 3,006 ✭✭✭_Tombstone_


    Thanks Cap. Good info there.


  • Moderators, Social & Fun Moderators Posts: 12,619 Mod ✭✭✭✭JupiterKid


    The then Soviet N1 Moon rockets also blew up on or close to the ground in the late 1960s/early 70s, scuppering the Soviet Union's manned moon programme.

    The explosions were so dramatic that they rivalled small nuclear blasts.


  • Closed Accounts Posts: 3,006 ✭✭✭_Tombstone_



    Lots of time for competitors to catch up now.

    And here they come.

    Jeff Bezos unveils the design of Blue Origin's future orbital rocket — the New Glenn

    new-glenn-large2.jpg

    Reusable LEO launching before 2020, bigger but not as powerful as Falcon heavy.
    The main portion of the rocket will be powered by seven BE-4s, an engine that Blue Origin is currently developing. It’s the same engine that the company hopes to sell to the United Launch Alliance to power the future Vulcan rocket. Combined, the BE-4s should provide 3.85 million pounds of thrust, according to Bezos. That's more thrust than the 2 million pounds the Delta IV Heavy is capable of, and slightly less than the 5 million pounds SpaceX's Falcon Heavy can pull off.


    And a teaser project named "New Armstrong" coming aswell.


  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 90,838 Mod ✭✭✭✭Capt'n Midnight


    And here they come.
    The main portion of the rocket will be powered by seven BE-4s, an engine that Blue Origin is currently developing. It’s the same engine that the company hopes to sell to the United Launch Alliance to power the future Vulcan rocket.
    What's the specific impulse of either the BE-3 or the BE-4 ?


  • Registered Users Posts: 13,673 ✭✭✭✭josip


    Every time I see one of those updated rocket list pictures I dream of what it would have been like to feel a Saturn V launch.


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  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 90,838 Mod ✭✭✭✭Capt'n Midnight


    josip wrote: »
    Every time I see one of those updated rocket list pictures I dream of what it would have been like to feel a Saturn V launch.
    Scary http://history.nasa.gov/ap08fj/01launch_ascent.htm

    gforce.gif

    (2) is where they turned off the centre engine , you go from 3.5g back to 3g and then up again to 4g at (3)


  • Closed Accounts Posts: 3,006 ✭✭✭_Tombstone_


    What's the specific impulse of either the BE-3 or the BE-4 ?

    I don't think he ever released them, Nasa spaceflight has thread here where using what figures have been released they work it out at
    theoretical ideal specific impulse of 327 s SL and 351 s vac.


  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 90,838 Mod ✭✭✭✭Capt'n Midnight


    I don't think he ever released them, Nasa spaceflight has thread here where using what figures have been released they work it out at
    Thanks

    https://www.blueorigin.com/be4
    BE-4 is the only engine that can fly by 2019, meeting the congressionally mandated deadline to eliminate dependence on Russian-built engines.
    I'll keep my cynical hat on until they release some real info. :)



    The only real advantage of Methane compared to RP-1 is that it doesn't coke as much when used to cool the engine, and even that only applies to reusable engines. RP-1 is way easier to handle and a lot safer as you are comparing natural gas with heating oil. If you are going cryogenic then Hydrogen is a lot lighter. And rocket fuel is cheap compared to rocket hardware.


    Developing a new engine ?
    http://spacecraft.ssl.umd.edu/akins_laws.html
    The three keys to keeping a new manned space program affordable and on schedule:
    1) No new launch vehicles.
    2) No new launch vehicles.
    3) Whatever you do, don't develop any new launch vehicles.


  • Closed Accounts Posts: 3,006 ✭✭✭_Tombstone_


    Spacex to be back launching in November from either of their nearly finished pads at Kennedy or Vandenberg. No update on cause of explosion and their back in November!?
    http://mobile.reuters.com/article/idUSKCN11J2OJ


    Will Rockets Ever Be Reliable?
    http://www.spacedaily.com/m/reports/Will_Rockets_Ever_Be_Reliable_999.html

    "There really needs to be a stronger response from the spaceflight community. In fact, some sectors need to give out howls of rage. It's about time that rocketry became more reliable. It should become more difficult to accept the mediocre performance standards of the whole global space launch industry. The public knows that astronauts walked on the Moon before many of them were even born. Now they watch mundane orbital launches shower the ocean with debris."


  • Registered Users Posts: 13,673 ✭✭✭✭josip


    Will Rockets Ever Be Reliable?
    http://www.spacedaily.com/m/reports/Will_Rockets_Ever_Be_Reliable_999.html

    "There really needs to be a stronger response from the spaceflight community. In fact, some sectors need to give out howls of rage. It's about time that rocketry became more reliable. It should become more difficult to accept the mediocre performance standards of the whole global space launch industry. The public knows that astronauts walked on the Moon before many of them were even born. Now they watch mundane orbital launches shower the ocean with debris."

    Written by a journalist who doesn't appear to have any practical experience of working in a technical, let alone space industry.
    His doctorate is in Philosophy from Wollongong which is better known for its surf and steel than its university.

    https://www.linkedin.com/in/morris-jones-a415635

    Open to correction if I'm wrong and have done him an injustice, but I'd pay more attention to my mother's recital of hey diddle diddle than this guy's opinion on rocketry.


  • Closed Accounts Posts: 3,006 ✭✭✭_Tombstone_




  • Closed Accounts Posts: 3,006 ✭✭✭_Tombstone_




  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 90,838 Mod ✭✭✭✭Capt'n Midnight


    The only real advantage of Methane compared to RP-1 is that it doesn't coke as much when used to cool the engine, and even that only applies to reusable engines. RP-1 is way easier to handle and a lot safer as you are comparing natural gas with heating oil. If you are going cryogenic then Hydrogen is a lot lighter. And rocket fuel is cheap compared to rocket hardware.
    OK there's another use for LNG, in theory you could use it for pressurisation of tanks. If done right you could vastly simplify the turbopump. But against that is the addition weight of a pressurised tank and lower efficiency of a lower pressure engine.

    ULA were getting Russian rocket engines for $10m each, and $800m a year from the Air Force. At the prices ULA were charging even free engines wouldn't have saved much.

    This is about the same price as the Vulcain engine but the hopes are to get it's replacement down to a million or so each. Great if you get the volume of launches to offset the development costs.


    Anyway all moot since LNG boils at -160 compared to O2 at -183. And it's not like anyone uses compressed Oxygen to drive rockets or turbopumps these days.

    Critical temp/ pressures are similar too
    Oxygen −118.6 °C (154.6 K) 49.8 atm (5,050 kPa)
    CH4 (methane) −82.3 °C (190.8 K) 45.79 atm (4,640 kPa)


    50 atm is the sort of pressure you'd get half a kilometre underwater, so we're not taking lightweight tanks here.


  • Closed Accounts Posts: 3,006 ✭✭✭_Tombstone_


    Spacex to be back launching in November from either of their nearly finished pads at Kennedy or Vandenberg.
    Hmm, maybe not Vandenberg, looking like it could get damaged in that big forest fire over there.

    https://spaceflightnow.com/2016/09/20/uncontrolled-wildfire-at-vandenberg-air-force-base-continues-to-rage/


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  • Closed Accounts Posts: 3,006 ✭✭✭_Tombstone_




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