Interesting piece of news, albeit dated, which I have not seen on NSF. Anybody willing to bet that client is not ULA?"One of Roush’s aerospace projects includes additively manufacturing engine components for an undisclosed aerospace cryogenic propulsion system."
Quote from: Rocket Jesus on 05/18/2018 05:05 amInteresting piece of news, albeit dated, which I have not seen on NSF. Anybody willing to bet that client is not ULA?"One of Roush’s aerospace projects includes additively manufacturing engine components for an undisclosed aerospace cryogenic propulsion system."I guess that depends on whether you interpret "cryogenic" narrowlyas rocket shorthand for LH2.By wider usage LOX/LCH4 are considered cryogenic too and I canthink of at least two potential customers that aren't ULA.
Roush is literally up the freeway from here in Livonia, Michigan but they have dozens of buildings in the Detroit area - a fast expanding high tech region. On this Aerodpace promo page is a graphic which looks like Vulcan,https://www.roush.com/markets-we-serve/aerospace/I see their Allen Park facility is looking for a "launch engineer."Footnote: George Sowers is no longer at ULA.He's Professor, Space Resources, Colorado School of Mines. Also doing consulting work via Sowers Space Solutions.https://www.linkedin.com/in/george-sowers-7a20a731
It may have been mentioned elsewhere, but ULA was awarded a $10M tipping point contract (a public-private partnership that requires ULA to match that $10M by at least 25%) today to flight demonstrate the IVF system on a Centaur flight within the next 3.5yrs.http://www.parabolicarc.com/2018/08/08/nasa-announces-partnerships-develop-space-exploration-technologies/
It only makes sense to develop a shared-use upper stage. After all, that is how ICPS is used, shared with SLS and with Delta 4. I wouldn't want to guess just yet which upper stage would be selected. EELV-2 (see, I've already forgotten the new name for this program) will choose two launch systems. Vulcan may or may not be one of them. - Ed Kyle
Quote from: edkyle99 on 08/09/2018 02:07 pmIt only makes sense to develop a shared-use upper stage. After all, that is how ICPS is used, shared with SLS and with Delta 4. I wouldn't want to guess just yet which upper stage would be selected. EELV-2 (see, I've already forgotten the new name for this program) will choose two launch systems. Vulcan may or may not be one of them. - Ed Kyle That kind of rocket lego usually results in very inefficient designs, if used between multiple boosters of very different sizes. IVF itself should scale pretty well between systems, though.
Quote from: envy887 on 08/09/2018 02:32 pmQuote from: edkyle99 on 08/09/2018 02:07 pmIt only makes sense to develop a shared-use upper stage. After all, that is how ICPS is used, shared with SLS and with Delta 4. I wouldn't want to guess just yet which upper stage would be selected. EELV-2 (see, I've already forgotten the new name for this program) will choose two launch systems. Vulcan may or may not be one of them. - Ed Kyle That kind of rocket lego usually results in very inefficient designs, if used between multiple boosters of very different sizes. IVF itself should scale pretty well between systems, though.Yes, but if there's not enough billions to develop EUS, using something extant could still offer substantial improvement. Centaur 5+ Long will carry 77 tonnes of propellant, 2.87 times more than ICPS. Omega Heavy upper stage might carry even more propellant. Best of all, maybe, could be New Glenn second stage with its almost-EUS propellant load. - Ed Kyle
Could play out that way. (If there is an EUS. If new tech is not too much of a risk for it...)Flying the experiment on Vulcan seems likely, easier to have it in a new contract than to modify (adding risk) an existing one.
QuoteThough I guess my old ACES/EUS concept (where you use a common engine/thrust structure/backside of the LOX tank between ACES and EUS) could possibly also work.Is this on your blog somewhere?
Though I guess my old ACES/EUS concept (where you use a common engine/thrust structure/backside of the LOX tank between ACES and EUS) could possibly also work.
Looks like this blog entry from 2013.And we finally knew why ULA selected RL10 once again. As long as we talk about the same engine choice a (mostly) common engine section / thrust structure would make sense. There are only so many ways to plumb it after all. Since thrust stays the same "just" add a 8.4m adapter ring... Doubling the amount of IVF pods from 2 to 4 should be simple.That said from my perspective sense and SLS have a rough relationship...