ULA is shooting for ACES costing the same as a Single-Engine Centaur, which is pretty ambitious. That said, the rumors I've heard are the same--after realizing they could get aced out of Vulcan propulsion if they aren't careful, I've heard that AJR is taking the RL-10 competition a lot more seriously.But that's just third-hand rumors. It'll be interesting to see how this pans out. Can RL-10 get the price competitive enough? Can XCOR deliver and find a way to solve heritage concerns? Is BE-3U going to be high enough performance for ACES? I just wish for XCOR's sake that they had more in the pipeline than just the RL-10 replacement engine, because it's far from clear they'll win this, even if they make it work, and even if the cost is reasonable. One interesting question though would be if ULA will fund them far enough that they could possibly market their engine to others even if they don't win ACES? A Masten XS-1 with a LOX/LH2 "Mini-taur" expendable (or reusable) upper stage would be pretty sweet for instance.
Quote from: jongoff on 06/15/2016 11:22 pmULA is shooting for ACES costing the same as a Single-Engine Centaur, which is pretty ambitious. That said, the rumors I've heard are the same--after realizing they could get aced out of Vulcan propulsion if they aren't careful, I've heard that AJR is taking the RL-10 competition a lot more seriously.But that's just third-hand rumors. It'll be interesting to see how this pans out. Can RL-10 get the price competitive enough? Can XCOR deliver and find a way to solve heritage concerns? Is BE-3U going to be high enough performance for ACES? I just wish for XCOR's sake that they had more in the pipeline than just the RL-10 replacement engine, because it's far from clear they'll win this, even if they make it work, and even if the cost is reasonable. One interesting question though would be if ULA will fund them far enough that they could possibly market their engine to others even if they don't win ACES? A Masten XS-1 with a LOX/LH2 "Mini-taur" expendable (or reusable) upper stage would be pretty sweet for instance. I'd bet many of the cost reductions could have been done decades ago. That they were not speaks volumes for their management view.
AJR's customers have, historically been reluctant to substantively alter a proven design and lose flight heritage, which locks them into increasingly deprecated hardware and methods, which means their vendors end up maintaining outdated capabilities just for you, which means money. This is only one aspect, but it's not a small one. So, if your customer is willing to pay the prices, and doesn't want you to significantly change things, why are you going to fight them on it?The culture in launch has only recently been changing from the mantra of Heritage Uber Alles. The old vendors are starting to shift accordingly, though some admittedly faster than others. From what I've seen, which is admittedly only through one window into a many-roomed house, AJR is very quickly and aggressively making that shift.
Or they could just shift costs to big juicy non competitive contracts (SLS) while undercutting competition in the open market.
Quote from: john smith 19 on 06/16/2016 05:54 amI'd bet many of the cost reductions could have been done decades ago. That they were not speaks volumes for their management view. Yes and no. Reducing marginal costs can require significant upfront capital, between equipment, IRAD, and Delta-Qual.
I'd bet many of the cost reductions could have been done decades ago. That they were not speaks volumes for their management view.
AJR's customers have, historically been reluctant to substantively alter a proven design and lose flight heritage, which locks them into increasingly deprecated hardware and methods, which means their vendors end up maintaining outdated capabilities just for you, which means money.
This is only one aspect, but it's not a small one. So, if your customer is willing to pay the prices, and doesn't want you to significantly change things, why are you going to fight them on it?
The culture in launch has only recently been changing from the mantra of Heritage Uber Alles. The old vendors are starting to shift accordingly, though some admittedly faster than others. From what I've seen, which is admittedly only through one window into a many-roomed house, AJR is very quickly and aggressively making that shift.
I guess this means XCOR are (a) still alive and (b) might still be building the Lynx?...
Yes and no. Reducing marginal costs can require significant upfront capital, between equipment, IRAD, and Delta-Qual.
AJR's customers have, historically been reluctant to substantively alter a proven design and lose flight heritage, which locks them into increasingly deprecated hardware and methods, which means their vendors end up maintaining outdated capabilities just for you, which means money. This is only one aspect, but it's not a small one. So, if your customer is willing to pay the prices, and doesn't want you to significantly change things, why are you going to fight them on it?
Uh huh. When you lay off the team that's working on a project and assign the rest of the company to other tasks, it's cancelled.
Quote from: QuantumG on 07/22/2016 06:08 amUh huh. When you lay off the team that's working on a project and assign the rest of the company to other tasks, it's cancelled.But they can't say that or customers would start looking for refunds, which would quickly bankrupt the company.
Quote from: simonbp on 07/22/2016 04:41 pmQuote from: QuantumG on 07/22/2016 06:08 amUh huh. When you lay off the team that's working on a project and assign the rest of the company to other tasks, it's cancelled.But they can't say that or customers would start looking for refunds, which would quickly bankrupt the company.Not necessarily. Most of the refundable part of their tickets is probably being held in escrow.
SXC shall have no obligation to hold any payments in escrow and may use such funds in the course of its business or operations....There will be no refunds given as a result of any delays caused by any reason, seen or unforeseen, regardless of fault that are not covered by the Trip Cancellation Arrangement. A new scheduled LYNX MARK I flight may be assigned in case of any delays. The exact date of the new scheduled LYNX MARK I flight will be mutually decided by the parties.
Even though the program made great forward progress integrating thevehicle structural elements during 2015 and early 2016 the progress onthe control surface elements lagged in design. In an effort to preventpotential rework resulting from implementing designs not yet mature theLynx fabrication was paused, so our engineering team has gone back tothe design board.
Why did they get so far along in building something without having critical design issues solved?
Quote from: ChrisWilson68 on 11/22/2016 07:41 amWhy did they get so far along in building something without having critical design issues solved?As I recall, the X-33 flight test vehicle got up to 95% complete by the time it was cancelled, in spite of several major design issues that had not been resolved.