... there is no slot for a launch
Quote from: Jim on 02/14/2012 09:59 pm... there is no slot for a launchDo you mean there is no slot left at the range for a launch (in 2013) or do you simply mean that one hasn't been booked yet?
Quote from: Garrett on 02/15/2012 12:03 pmQuote from: Jim on 02/14/2012 09:59 pm... there is no slot for a launchDo you mean there is no slot left at the range for a launch (in 2013) or do you simply mean that one hasn't been booked yet? They have other obligations to meet first
Does this help?http://www.spacex.com/launch_manifest.phpNotice all 2012 Cape launches have Dragons attached, and they have to be cleared out before the two 2013 GTO missions with fairings can fly. And don't forget the CRS-3 and 4 flights in 2013. 2013 will be a fun year... They have four Cape launches on the manifest, plus what ever they do not fly in 2012.Jimology is a fun drinking game, for every word you take a drink. You never fear getting drunk because there are not enough words
So SpaceX will only launch an Astrobotic mission if they can find time in their hectic schedule,
Say what you want, but i think its quite hilarious that their "hectic" schedule ( no launches last year, maybe one this year ) would prevent them from launching an actual paying customer, the type of private enterprise venture they were supposed to enable ?
Here is a pert diagram that I updated that I did for another thread (I added the McGregor FH test stand to it). Most of the tasks in the diagram occur during or before 2013. Some of the tasks may never occur which are some of those that would occur after 2013. The year listed in the task event is the end date if it has two years it is a spread of when it may occur.{snip}
Here is a pert diagram that I updated that I did for another thread (I added the McGregor FH test stand to it). Most of the tasks in the diagram occur during or before 2013. Some of the tasks may never occur which are some of those that would occur after 2013. The year listed in the task event is the end date if it has two years it is a spread of when it may occur.
You are correct here is the correct one.
To get 4.5 tonnes to GTO, basically a fully upgraded F9 would be needed, 480 tonnes GLOW (vs. 310-ish currently) and some 16 tonne payload to LEO. The current F9 with just upgraded engines won't cut it.
If I could get people on space fora to do one thing, it's to not believe predicted performance numbers or target launch dates for a vehicle* that hasn't flown at least 3 times.* And by "a vehicle" I mean any moderate change: different front end, more or fewer solids, different engine, different pad.
Quote from: ugordan on 02/11/2012 02:54 pmTo get 4.5 tonnes to GTO, basically a fully upgraded F9 would be needed, 480 tonnes GLOW (vs. 310-ish currently) and some 16 tonne payload to LEO. The current F9 with just upgraded engines won't cut it.That sounds familiar, from the analysis I've seen F9 with Merlin D would need a GLOW of 450 mT to achieve 4.5 mT P/L to GTO.And, btw, I fully support this:Quote from: Antares on 02/11/2012 04:12 pmIf I could get people on space fora to do one thing, it's to not believe predicted performance numbers or target launch dates for a vehicle* that hasn't flown at least 3 times.* And by "a vehicle" I mean any moderate change: different front end, more or fewer solids, different engine, different pad.
Quote from: spacejulien on 02/15/2012 10:36 pmQuote from: ugordan on 02/11/2012 02:54 pmTo get 4.5 tonnes to GTO, basically a fully upgraded F9 would be needed, 480 tonnes GLOW (vs. 310-ish currently) and some 16 tonne payload to LEO. The current F9 with just upgraded engines won't cut it.That sounds familiar, from the analysis I've seen F9 with Merlin D would need a GLOW of 450 mT to achieve 4.5 mT P/L to GTO.You are probably correct in that just replacing the current Merlins with the M1D versions would not get you to or over 4.5mt GTO but it would be definitly better than the current <3.8mt capability. In order to fly the full F9 Block II the CCAFS pad has to be upgraded to handle the stretched F9 and that will probably not be finished until 2013-2014 so until then the not a Block I and not a Block II version but somewhere in between will have to be used.
Quote from: ugordan on 02/11/2012 02:54 pmTo get 4.5 tonnes to GTO, basically a fully upgraded F9 would be needed, 480 tonnes GLOW (vs. 310-ish currently) and some 16 tonne payload to LEO. The current F9 with just upgraded engines won't cut it.That sounds familiar, from the analysis I've seen F9 with Merlin D would need a GLOW of 450 mT to achieve 4.5 mT P/L to GTO.