Quote from: HMXHMX on 08/21/2019 10:21 pmOn the subject of why Stratolaunch failed, I am reminded of the comments of an early pioneer of the space age in the 1920s in Germany, when asked by a newspaper reporter "What is needed to achieve interplanetary flight?" The pioneer replied:"Three things. First, find the money. Second, get the right people on the job. Third, get the wrong people off the job!"Strato had the money but failed at requirements two and three.CuteBut are you saying that a better team could have made the program viable?In your opinion, could Stratolaunch be economical if they had the right rocket but considered the ROC a sunk cost which did not need to be paid off?
On the subject of why Stratolaunch failed, I am reminded of the comments of an early pioneer of the space age in the 1920s in Germany, when asked by a newspaper reporter "What is needed to achieve interplanetary flight?" The pioneer replied:"Three things. First, find the money. Second, get the right people on the job. Third, get the wrong people off the job!"Strato had the money but failed at requirements two and three.
I think NG should buy Stratolaunch's assets as the ROC and the PGA engines could work well with the XS-1 plane.
Quote from: Comga on 08/22/2019 04:06 amQuote from: HMXHMX on 08/21/2019 10:21 pmOn the subject of why Stratolaunch failed, I am reminded of the comments of an early pioneer of the space age in the 1920s in Germany, when asked by a newspaper reporter "What is needed to achieve interplanetary flight?" The pioneer replied:"Three things. First, find the money. Second, get the right people on the job. Third, get the wrong people off the job!"Strato had the money but failed at requirements two and three.CuteBut are you saying that a better team could have made the program viable?In your opinion, could Stratolaunch be economical if they had the right rocket but considered the ROC a sunk cost which did not need to be paid off?Yes and yes. But the a/c configuration is part of the problem; I had different ideas than Burt when it came to configuration and CONOPS. But it was his project. Sometimes I regret making the intro between Allen and Burt back in 1996...
Quote from: TripleSeven on 08/22/2019 05:23 pmQuote from: HMXHMX on 08/22/2019 05:19 pmQuote from: Comga on 08/22/2019 04:06 amQuote from: HMXHMX on 08/21/2019 10:21 pmOn the subject of why Stratolaunch failed, I am reminded of the comments of an early pioneer of the space age in the 1920s in Germany, when asked by a newspaper reporter "What is needed to achieve interplanetary flight?" The pioneer replied:"Three things. First, find the money. Second, get the right people on the job. Third, get the wrong people off the job!"Strato had the money but failed at requirements two and three.CuteBut are you saying that a better team could have made the program viable?In your opinion, could Stratolaunch be economical if they had the right rocket but considered the ROC a sunk cost which did not need to be paid off?Yes and yes. But the a/c configuration is part of the problem; I had different ideas than Burt when it came to configuration and CONOPS. But it was his project. Sometimes I regret making the intro between Allen and Burt back in 1996...the operational and fixed cost of that "airplane" must be enormous...and scaryPerhaps not so much for the military on some "Black Project"...
Quote from: HMXHMX on 08/22/2019 05:19 pmQuote from: Comga on 08/22/2019 04:06 amQuote from: HMXHMX on 08/21/2019 10:21 pmOn the subject of why Stratolaunch failed, I am reminded of the comments of an early pioneer of the space age in the 1920s in Germany, when asked by a newspaper reporter "What is needed to achieve interplanetary flight?" The pioneer replied:"Three things. First, find the money. Second, get the right people on the job. Third, get the wrong people off the job!"Strato had the money but failed at requirements two and three.CuteBut are you saying that a better team could have made the program viable?In your opinion, could Stratolaunch be economical if they had the right rocket but considered the ROC a sunk cost which did not need to be paid off?Yes and yes. But the a/c configuration is part of the problem; I had different ideas than Burt when it came to configuration and CONOPS. But it was his project. Sometimes I regret making the intro between Allen and Burt back in 1996...the operational and fixed cost of that "airplane" must be enormous...and scary
Quote from: meekGee on 08/18/2019 10:37 pmThe proof is in the pudding. "Wing people" have been trying this for how long now? It doesn't scale.Stratolaunch was not short on money, but couldn't make it work.I don't mean to call you in particular out. It's just that I've seen people say this a few times now, and it's total and unequivocal nonsense. Ok, so you claim that Stratolaunch couldn't make air-launch work? My first response would be to ask for a list of times that Stratolaunch attempted an air-launch, and couldn't make it work. Except we both know that Startolaunch was never even able to attempt an air-launch. But how can a company which never even attempted an air-launch be cited as an example of air-launch not working? Perhaps you meant that they were having some sort of technical or design difficulty that ultimately caused them to fail, as a result of their air-launch architecture.Well, they had an aircraft which worked, they were working on a very impressive engine, they had a launch vehicle design, and they even had a smaller proven launch vehicle (Pegasus) for the interim. Personally, I don't recall at any point hearing about any major technical delays to their progress. Well if technical issues weren't what caused Stratolaunch to fail, what did?What we have to remember is that Stratolaunch didn't fail; it was closed down. The thing that sealed Stratolaunch's fate wasn't technical problems or profit margins or the concept of air-launch, it was cancer. Paul Allen died, and his family decided they didn't want to continue the endeavor. Whatever you may think of air-launch, and I really don't care, Stratolaunch is NOT an example of the concept of air-launch failing; it's an example of what can happen when a man dies unexpectedly, and a reminder of how important one person can be to an organization.To suggest otherwise is both disingenuous and somewhat disrespectful. If you are one of the people that have done so, please stop.
The proof is in the pudding. "Wing people" have been trying this for how long now? It doesn't scale.Stratolaunch was not short on money, but couldn't make it work.
Stratolaunch is hiring http://jobs.jobvite.com/careers/stratolaunch/jobs?error=404#/category/256
Some one absolutely should buy, finish, and produce the PGA engine. It's a 3D-printed staged-combustion hydrolox engine with the thrust of a Merlin 1D. The PGA could make an upper stage design team very happy one day.
Blue Origin aside, the trend in start-up launchers seems to be against hydrogen upper stages. Cost is everything for launch these days, and hydrogen adds cost to every part of the system because it's so hard to work with. The consensus seems to be that it's not worth it for the benefits hydrogen gives.
Quote from: ChrisWilson68 on 09/12/2019 09:02 pmBlue Origin aside, the trend in start-up launchers seems to be against hydrogen upper stages. Cost is everything for launch these days, and hydrogen adds cost to every part of the system because it's so hard to work with. The consensus seems to be that it's not worth it for the benefits hydrogen gives.Not sure what you mean.
"Start-up launchers" like Vulcan,
H3,
New Glenn,
Ariane 6, OmegA, SLS, Long March 5 and GSLV Mk 3 all use hydrogen upper stages.
The only proposed or relatively new medium to large launcher not doing so is Starship.
I saw #Stratolaunch’s hanger doors were open this morning while shooting Stargazer’s departure, you better believe I took photos. Looks like some work is being done on Roc! Could it be that the story isn’t over yet? 🤞@Stratolaunch @NASASpaceflight
Looks like they are getting it ready for long term storage.
Quote from: JEF_300 on 08/22/2019 08:47 pmSome one absolutely should buy, finish, and produce the PGA engine. It's a 3D-printed staged-combustion hydrolox engine with the thrust of a Merlin 1D. The PGA could make an upper stage design team very happy one day.Do we know that's true? Do we know that the PGA engine is actually a good design? Do we know that it's far enough along in development to be worth preserving without a specific customer?
Stratolaunch LLC has transitioned ownership and is continuing regular operations. Our near-term launch vehicle development strategy focuses on providing customizable, reusable, and affordable rocket-powered testbed vehicles and associated flight services. (1/2)
As we continue on our mission, Stratolaunch will bring the carrier aircraft test and operations program fully in-house. We thank @VulcanInc and @ScaledC for turning an ambitious idea into a flight-proven aircraft. (2/2)
I am heartbroken by the passing of one of my oldest and dearest friends, Paul Allen. From our early days together at Lakeside School, through our partnership in the creation of Microsoft, to some of our joint philanthropic projects over the years, Paul was a true partner and dear friend. Personal computing would not have existed without him.But Paul wasn’t content with starting one company. He channeled his intellect and compassion into a second act focused on improving people’s lives and strengthening communities in Seattle and around the world. He was fond of saying, “If it has the potential to do good, then we should do it.” That’s the kind of person he was.Paul loved life and those around him, and we all cherished him in return. He deserved much more time, but his contributions to the world of technology and philanthropy will live on for generations to come. I will miss him tremendously.