SpaceX will have an use for their end of the life Merlin engines, instead of junking them. After the Merlins go up a few times in the F9R.
Quote from: Zed_Noir on 12/06/2014 09:10 pmSpaceX will have an use for their end of the life Merlin engines, instead of junking them. After the Merlins go up a few times in the F9R.People always seem to assume that Merlin engines can only last for a few flights. I think that's the minimum SpaceX is going for. Once they can land stages, if the engines are wearing out after a few flights, I suspect SpaceX will make some modifications. I don't think there's any fundamental reason rocket engines can't be made to last hundreds of flights.If it turns out there really is a big market for Firefly-class payloads, SpaceX can just put a very expendable small upper stage on a F9R first stage to duplicate that capability and it's likely to be cheaper than Firefly.
Quote from: ChrisWilson68 on 12/06/2014 09:26 pmQuote from: Zed_Noir on 12/06/2014 09:10 pmSpaceX will have an use for their end of the life Merlin engines, instead of junking them. After the Merlins go up a few times in the F9R.People always seem to assume that Merlin engines can only last for a few flights. I think that's the minimum SpaceX is going for. Once they can land stages, if the engines are wearing out after a few flights, I suspect SpaceX will make some modifications. I don't think there's any fundamental reason rocket engines can't be made to last hundreds of flights.If it turns out there really is a big market for Firefly-class payloads, SpaceX can just put a very expendable small upper stage on a F9R first stage to duplicate that capability and it's likely to be cheaper than Firefly.Maybe a very few dozen flights before coking from the RP-1 renders the engine non-serviceable. Somehow a few hundreds flights per engine seems overly optimistic for any KeroLox engine.
Quote from: TrevorMonty on 12/05/2014 11:26 amWe are getting a head of ourselves, competing with SpaceX is looking to far out. I would be happy to just see a aerospike engine working on a test stand.That's not going to happen unless they can convince investors they have a viable way to make money, and it's hard to see how they can have that without competing with SpaceX.
We are getting a head of ourselves, competing with SpaceX is looking to far out. I would be happy to just see a aerospike engine working on a test stand.
Quote from: Jarnis on 12/04/2014 09:27 amQuote from: gospacex on 12/04/2014 07:56 amQuote from: Beittil on 12/04/2014 07:54 amIf Firefly succesfully manages to set up shop in the smallsat market and manages to generate enough revenue there I don't see any hold back with developing an upgrade of their technology for the higher end market.Other than Elon being able to resurrect Falcon-1 any time and bankrupt them?That's silly talk. - SpaceX has their plate full with bigger things.- Falcon-1 used older versions of Merlin, upgrading the design to latest Merlin 1D is not free nor instant.Oh, SpaceX may compete, but I'd expect it to be with "lets stack a lot of these small sats on a F9R or as secondaries on a bigger FH mission", not adding back a small launcher. That also means there will always be market for small payloads with requirements that prevent them to be candidates for a launch on a larger vehicle.You miss the point.If Firefly becomes significantly profitable, this will show Musk that there are money to be made in small launcher market.Then Musk, leveraging his existing engine and mfg capability, can roll out F-1-esque competitor which would be even cheaper than Firefly.The mere possibility of such scenario makes Firefly's business strategy more risky. If they fail to create a viable rocket, they fail. If they do create it, they get destroyed by Musk.
Quote from: gospacex on 12/04/2014 07:56 amQuote from: Beittil on 12/04/2014 07:54 amIf Firefly succesfully manages to set up shop in the smallsat market and manages to generate enough revenue there I don't see any hold back with developing an upgrade of their technology for the higher end market.Other than Elon being able to resurrect Falcon-1 any time and bankrupt them?That's silly talk. - SpaceX has their plate full with bigger things.- Falcon-1 used older versions of Merlin, upgrading the design to latest Merlin 1D is not free nor instant.Oh, SpaceX may compete, but I'd expect it to be with "lets stack a lot of these small sats on a F9R or as secondaries on a bigger FH mission", not adding back a small launcher. That also means there will always be market for small payloads with requirements that prevent them to be candidates for a launch on a larger vehicle.
Quote from: Beittil on 12/04/2014 07:54 amIf Firefly succesfully manages to set up shop in the smallsat market and manages to generate enough revenue there I don't see any hold back with developing an upgrade of their technology for the higher end market.Other than Elon being able to resurrect Falcon-1 any time and bankrupt them?
If Firefly succesfully manages to set up shop in the smallsat market and manages to generate enough revenue there I don't see any hold back with developing an upgrade of their technology for the higher end market.
Quote from: gospacex on 12/06/2014 02:26 pmThe mere possibility of such scenario makes Firefly's business strategy more risky. If they fail to create a viable rocket, they fail. If they do create it, they get destroyed by Musk.Customers- not SpaceX- will ultimately decide if they want to share a ride on a Falcon9 or have their own ride up on a Firefly. There's no need- or supporting evidence- that SpaceX will make a conscious decision to kill Firefly- or Arienspace and ULA for that matter. He feels he's got a competitive product, and Firefly is playing in a different market space (albeit with some overlap).
The mere possibility of such scenario makes Firefly's business strategy more risky. If they fail to create a viable rocket, they fail. If they do create it, they get destroyed by Musk.
Quote from: sghill on 01/07/2015 03:08 pmQuote from: gospacex on 12/06/2014 02:26 pmThe mere possibility of such scenario makes Firefly's business strategy more risky. If they fail to create a viable rocket, they fail. If they do create it, they get destroyed by Musk.Customers- not SpaceX- will ultimately decide if they want to share a ride on a Falcon9 or have their own ride up on a Firefly. There's no need- or supporting evidence- that SpaceX will make a conscious decision to kill Firefly- or Arienspace and ULA for that matter. He feels he's got a competitive product, and Firefly is playing in a different market space (albeit with some overlap). This is a classic "what if Google does what we are trying to do" question for all startups, and common advice is to spend about 5 seconds thinking about it, and then keep on executing on your plans.If anything, if a large player announces plans to compete in the space that you are about to make your break, it validates your market analysis to all investors - Googles and SpaceXes of the world wouldnt try if there isnt money to be made.For example:http://onstartups.com/tabid/3339/bid/75314/13-Ways-To-Think-About-And-Crush-Your-Competition.aspx
SpaceX started out with a commercial business plan: lean development and operation of rockets with most of the hardware production outsourced. They targeted a small market they felt was neglected and that they could dominate, and from there grow. All that changed when they won a government contract.
Quote from: simonbp on 01/09/2014 03:41 pmOne interesting tidbit from the announcement is that it sounds like they will be focusing on sun-synchronous orbits, which makes sense for comm sat constellations and downward-looking telescopes, but also means they need a launch site like Vanderburg where they can launch polar, slightly retrograde.Why rule out Sea Launch? It looks small enough.
One interesting tidbit from the announcement is that it sounds like they will be focusing on sun-synchronous orbits, which makes sense for comm sat constellations and downward-looking telescopes, but also means they need a launch site like Vanderburg where they can launch polar, slightly retrograde.
Firefly most likely competition at present is Rocketlab and they are about a year ahead. NB near Firefly or any of the small sat wantabe LV providers are flying yet so there is no actual competition.
2014 launches, modified from Ed Kyle's listLV launches approximate LEO payload (kg)Atlas 5 9 14300Proton 8 20700CZ4 7 4200 (but 1500 to GTO)CZ 2 6 3675 *0 F5, all Chinese nationalAriane 5 6 21000Falcon 9 6 14500Delta 4 4 19105H-2A 4 10000PSLV 3 3250 (2 of which were to GTO, with 1425kg capability) *1 F5Antares 3 6120CZ 3 2 8615Dnepr 2 4500 *2 F5Rokot/Briz KM 2 1950 *0 F5, all russian nationalZenit 1 13740Delta 2 1 6100GSLV 1 5000Vega 1 2500 *1 F5Strela 1 2000 *0 F5, Russian nationalKuaizhou 1 300 *0 F1/1e/5, Chinese nationalShavit 2 1 800 *0 F1/1e/5, Israeli national
If government contracts have "gotten in the way" of SpaceX, then I hope they get a whole lot more of them.
Quote from: Robotbeat on 01/09/2015 02:19 amIf government contracts have "gotten in the way" of SpaceX, then I hope they get a whole lot more of them.I'm sure they do too. Not sure what your point is..