Quote from: SWGlassPit on 10/10/2016 03:08 pm If the COPV is autofrettaged, the liner will already be under compression at zero pressure, Not sure what you mean here. Guessing is not within my comfort zone but in your context is "autoclaved" a good term?
If the COPV is autofrettaged, the liner will already be under compression at zero pressure,
Well since nobody knows what "business process" she's talking about, what's the point second guessing her, and then attacking the very speculation you just made as if it were fact?
Quote from: Navier–Stokes on 10/10/2016 03:30 pmFull quote from Jeff Foust's summary article on SpaceNews (Shotwell says SpaceX “homing in” on cause of Falcon 9 pad explosion):Quote“We’re homing in on what happened,” she said. “I think it’s going to point not to a vehicle issue or an engineering design issue but more of a business process issue.”Note: emphasis mine.Am I the only one thinking that's actually worse news for SpaceX than a vehicle issue?I mean: a vehicle issue is something you find and then fix. Happens.But business processes is where SpaceX see their competitive advantage. They claim due to their leaner business processes they can be more cost effective than OldSpace.If these leaner business processes now turn out to cause mission or payload losses it means they will have to change them, probably for something more expensive.That may gradually move their cost structure towards OldSpace's and might simply mean there's sometimes a reason others are doing things they way they are doing them...
Full quote from Jeff Foust's summary article on SpaceNews (Shotwell says SpaceX “homing in” on cause of Falcon 9 pad explosion):Quote“We’re homing in on what happened,” she said. “I think it’s going to point not to a vehicle issue or an engineering design issue but more of a business process issue.”Note: emphasis mine.
“We’re homing in on what happened,” she said. “I think it’s going to point not to a vehicle issue or an engineering design issue but more of a business process issue.”
Meaning what? Trying to save a little time in the countdown to shorten the launch campaign? Doing something to save some time/money? Who is in charge of making such decisions. And what was the risk vs reward? As for not being a vehicle or an design issue, it is something worse, it is a cultural issue. What other "short cuts" are being done without rigorous engineering review.She used some bad words there
Quote from: meekGee on 10/10/2016 03:52 pmWell since nobody knows what "business process" she's talking about, what's the point second guessing her, and then attacking the very speculation you just made as if it were fact?Ok, then spin it another way to make it a positive thing that she said
...If these leaner business processes now turn out to cause mission or payload losses it means they will have to change them, probably for something more expensive.That may gradually move their cost structure towards OldSpace's and might simply mean there's sometimes a reason others are doing things they way they are doing them...
Quote from: pippin on 10/10/2016 03:45 pmQuote from: Navier–Stokes on 10/10/2016 03:30 pmFull quote from Jeff Foust's summary article on SpaceNews (Shotwell says SpaceX “homing in” on cause of Falcon 9 pad explosion):Quote“We’re homing in on what happened,” she said. “I think it’s going to point not to a vehicle issue or an engineering design issue but more of a business process issue.”Note: emphasis mine.Am I the only one thinking that's actually worse news for SpaceX than a vehicle issue?I mean: a vehicle issue is something you find and then fix. Happens.But business processes is where SpaceX see their competitive advantage. They claim due to their leaner business processes they can be more cost effective than OldSpace.If these leaner business processes now turn out to cause mission or payload losses it means they will have to change them, probably for something more expensive.That may gradually move their cost structure towards OldSpace's and might simply mean there's sometimes a reason others are doing things they way they are doing them...It seems a lot of folks on this site seem to think OldSpace - Very Bad, SpaceX/New Space - Very Good!
Quote from: meekGee on 10/10/2016 03:52 pmWell since nobody knows what "business process" she's talking about, what's the point second guessing her, and then attacking the very speculation you just made as if it were fact?Which speculation? She said things point to business processes, that's not speculation.
That doesn't necessarily mean they need to fundamentally change they way they do R&D, development, testing, manufacturing, etc, which is where most of the cost is IMHO.
She sure did, but nobody here has any clue what the hell she's talking about. What business process causes a rocket to explode?
Tweaking the operational procedure is not a business process. Everyone does that, and everyone is aware they have to walk on the right side of the line.
She specifically said "not vehicle, not operations, but business". It just left me scratching my head since I can't make any sense from that statement.
Quote from: meekGee on 10/10/2016 04:51 pmShe specifically said "not vehicle, not operations, but business". It just left me scratching my head since I can't make any sense from that statement.Blaming the accident on a business process almost sounds like cutting tests or procedures to save money. I suspect there's a better description of what she meant but it sure seems like a poor choice of words.
Normally "business process" is more like "how do you book a customer". Not "how fast you fill a Helium bottle", even if the driver is cost.
Quote from: meekGee on 10/10/2016 05:08 pmNormally "business process" is more like "how do you book a customer". Not "how fast you fill a Helium bottle", even if the driver is cost.Again: disagree. "Business process" is not the same thing as "business process optimization". She didn't say anything about the latter.And no, business processes are NOT the same thing as administrative processes.As I said before: all operational processes are business processes plus testing (of the operational vehicle) and manufacturing. Strictly speaking also all development processes but that looks a bit far-fetched to me.Maybe they are not sure which of these three areas influenced the problem most, my money would be that she just used "business processes" instead of "operating processes" and that's what she meant. But that, yes, is speculation.
According to that, every manufacturing process is a business process too. So it's an empty statement.
So in short - I think it's a poor choice of words.IMO it'll end up being an operational issue, indicative of nothing but the fact that SpaceX is evolving very fast, and there's some inherent risk in that.
Losing 1 rocket/yr is unacceptable, but I don't have enough data to know whether this is indicative of something larger or was bad luck.And neither do you, not unless you know what went wrong.... So it wasn't indicative of a cultural issue.
For example - the strut acceptance testing was no different than practices employed by other aerospace companies. So it wasn't indicative of a cultural issue. Maybe it was indicative of a supply chain that's still relatively young.
how's about we find out what business process she's talking about?If you're only complaining that they're making changes, I'll remind you that you were complaining when they moved away from F1.0.