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http://www.youtube.com/watch?v=th6HQ9RtVCE
Content of the email I (and, undoubtedly, many others) just got: Something Big is Coming Elon Musk Holding Press Conference on Tuesday, April 5th Elon Musk, CEO and Chief Technical Officer of SpaceX, will hold a press conference on Tuesday, April 5th at 11:20am EST to discuss SpaceX's latest venture. Get a sneak peak of the discussion on YouTube: http://www.youtube.com/watch?v=th6HQ9RtVCE. The press conference will be webcast live at: http://www.visualwebcaster.com/spacex. The press conference will also be accessible via the home page of SpaceX.com by clicking the main banner. If you are unable to watch live, the press conference will be archived at http://www.visualwebcaster.com/spacex for future viewing. If so, 32 tonnes at 2/3 the cost of Delta IV Heavy.... Bye Bye Boeing! |
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In article ,
says... http://www.youtube.com/watch?v=th6HQ9RtVCE Content of the email I (and, undoubtedly, many others) just got: Something Big is Coming Elon Musk Holding Press Conference on Tuesday, April 5th Elon Musk, CEO and Chief Technical Officer of SpaceX, will hold a press conference on Tuesday, April 5th at 11:20am EST to discuss SpaceX's latest venture. Get a sneak peak of the discussion on YouTube: http://www.youtube.com/watch?v=th6HQ9RtVCE. The press conference will be webcast live at: http://www.visualwebcaster.com/spacex. The press conference will also be accessible via the home page of SpaceX.com by clicking the main banner. If you are unable to watch live, the press conference will be archived at http://www.visualwebcaster.com/spacex for future viewing. If so, 32 tonnes at 2/3 the cost of Delta IV Heavy.... Bye Bye Boeing! Yea, the preview video makes it clear that it's a Falcon 9 Heavy. A black and white drawing of the thing can be seen near the end of the video. If they can make the Falcon 9 Heavy work, they'll be hanging with the "big dogs" for sure. Jeff -- " Solids are a branch of fireworks, not rocketry. :-) :-) ", Henry Spencer 1/28/2011 |
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On 5/04/2011 5:47 PM, Brian Gaff wrote:
But one has to ask, where is the money coming from for this? In these times, it has to be said that one is dubious about it being anything other than, The King is dead, Long live the )new?) King? Brian SpaceX site says the Falcon Heavy will launch 2012/2013 from Vandenberg - US recon sat launcher? |
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In article m,
says... On 5/04/2011 5:47 PM, Brian Gaff wrote: But one has to ask, where is the money coming from for this? In these times, it has to be said that one is dubious about it being anything other than, The King is dead, Long live the )new?) King? Brian SpaceX site says the Falcon Heavy will launch 2012/2013 from Vandenberg - US recon sat launcher? It's going to be a big launcher, capable of launching a 53,000 kg payload into an orbit of 28.5 degrees inclination at 200 km altitude. http://www.spacex.com/falcon_heavy.php The most interesting (new) feature I see is "propellant cross-feed from the side boosters to the center core". This has never been done on any launch vehicle to date, so it will be very interesting to see how easy/hard it will be for SpaceX to get this to work. Of course, even if they can't get it to work they say, "Should cross- feed not be required for lower mass missions, it can be easily turned off". It would be interesting to find out just how much this would impact Falcon Heavy's payload capacity. Jeff -- " Solids are a branch of fireworks, not rocketry. :-) :-) ", Henry Spencer 1/28/2011 |
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On Tue, 5 Apr 2011 08:47:32 +0100, "Brian Gaff"
wrote: But one has to ask, where is the money coming from for this? Where is the money coming for what? It is a commercial project. Here in America we can do pretty much whatever we want with our own money or whatever money we can convince investors to cough up. The Falcon 1 experience is behind them, and Falcon 9 has so far looked pretty good. SpaceX shouldn't have much trouble getting investors. If Mr. Musk's company can build a rocket with twice the lift capacity of Delta IV-Heavy at 25% the cost, it will kill off Delta IV just as quickly as DoD/NRO can say "thank you for your service, there's the door" and Atlas V will be relegated to a couple of launches per year as the backup vehicle (no more dependance on Russian engines will be hugely attractive to DoD.) That's a big chunk of money right there. And after a few more successful Falcon 9 launches, if SpaceX keeps it prices as low as they claim, Falcon Heavy will quickly become a major player, and Ariane's supremacy in the commercial market will be in great peril. Of course, that's all *if*. I suspect it won't be nearly as easy to build and launch that many cores and engines every year as they are claiming now. Brian |
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On Tue, 5 Apr 2011 15:36:20 -0400, Jeff Findley
wrote: It's going to be a big launcher, capable of launching a 53,000 kg payload into an orbit of 28.5 degrees inclination at 200 km altitude. Yes, but what payloads need that capacity anytime in the next decade? Three giant GEO satellites at the same time? Good luck scheduling that. http://www.spacex.com/falcon_heavy.php The most interesting (new) feature I see is "propellant cross-feed from the side boosters to the center core". This has never been done on any launch vehicle to date, so it will be very interesting to see how easy/hard it will be for SpaceX to get this to work. It hasn't exactly been done, but Atlas had something like it with its "stage and a half" engines that had to have severable connections to tankage in flight (and that was in 1959), and Saturn IB had multiple propellant tanks that had to pump around fuel in-flight (but they were all integrated as one unit, not hanging off the side of a core.) It's about damned time someone implement crossfeed. Delta IV-Heavy could do it, but it's probably too little, too late for Delta. It's toast if Falcon Heavy even comes in 100% overbudget. Brian |
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On 04/05/2011 02:36 PM, Jeff Findley wrote:
In pond.com, says... On 5/04/2011 5:47 PM, Brian Gaff wrote: But one has to ask, where is the money coming from for this? In these times, it has to be said that one is dubious about it being anything other than, The King is dead, Long live the )new?) King? Brian SpaceX site says the Falcon Heavy will launch 2012/2013 from Vandenberg - US recon sat launcher? It's going to be a big launcher, capable of launching a 53,000 kg payload into an orbit of 28.5 degrees inclination at 200 km altitude. http://www.spacex.com/falcon_heavy.php The most interesting (new) feature I see is "propellant cross-feed from the side boosters to the center core". This has never been done on any launch vehicle to date, so it will be very interesting to see how easy/hard it will be for SpaceX to get this to work. Of course, even if they can't get it to work they say, "Should cross- feed not be required for lower mass missions, it can be easily turned off". It would be interesting to find out just how much this would impact Falcon Heavy's payload capacity. The previously announced payload capacity (32,000 kg) assumed Merlin 1C and no crossfeed, so I assume a launch with Merlin 1D and crossfeed disabled would be somewhere in between. Based on the specs of the 1C vs the 1D, I would say most of the performance increase comes from the Merlin, not the crossfeed, so probably closer to 53 than 32. Still big enough for the heaviest DoD/NRO payloads. |
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On 04/05/2011 05:32 PM, Brian Thorn wrote:
On Tue, 5 Apr 2011 08:47:32 +0100, "Brian Gaff" wrote: But one has to ask, where is the money coming from for this? Where is the money coming for what? It is a commercial project. Here in America we can do pretty much whatever we want with our own money or whatever money we can convince investors to cough up. The Falcon 1 experience is behind them, and Falcon 9 has so far looked pretty good. SpaceX shouldn't have much trouble getting investors. If Mr. Musk's company can build a rocket with twice the lift capacity of Delta IV-Heavy at 25% the cost, it will kill off Delta IV just as quickly as DoD/NRO can say "thank you for your service, there's the door" and Atlas V will be relegated to a couple of launches per year as the backup vehicle (no more dependance on Russian engines will be hugely attractive to DoD.) Atlas V can't carry the heaviest DoD/NRO payloads, since the Heavy was never completed past CDR. I don't think DoD/NRO will be comfortable without a backup vehicle for *all* payload classes, so they will have an interesting choice between Delta (more expensive, but exists) versus Atlas (cheaper but need to develop the Heavy). |
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On Tue, 05 Apr 2011 18:42:23 -0500, "Jorge R. Frank"
wrote: Atlas V can't carry the heaviest DoD/NRO payloads, since the Heavy was never completed past CDR. I don't think DoD/NRO will be comfortable without a backup vehicle for *all* payload classes, so they will have an interesting choice between Delta (more expensive, but exists) versus Atlas (cheaper but need to develop the Heavy). They don't have one now, either. Atlas V-Heavy would be the backup to Falcon Heavy just as it is now for Delta IV-Heavy. Brian |
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