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It is a system for slowing the craft down as it re-enters the atmosphere. Deploying while running the engine seems, well, wrong. From my days designing controls, maybe an interlock on the deployment of the system while firing the engine and visa-versa.
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But even without travelers, we're still losing them. Just last week this old refurbished Antares was toast on launch. Was to bring supplies to the ISS. NASA down to one commercial supplier to ISS |
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Its like putting the hood up on your car going 200mph. |
uhmm.. you do realize that the 'feathered' configuration is for hitting the atmosphere at 2600mph, right?
And, of course, hoods have catch-latches specifically to avoid horrendous results from a simple capture error. (capture error - that's ergonomics-speak for grabbing the wrong object) |
It is hard to compare the Antares and Spaceship 2.
Antares used an extremely proven engine but with a different design for the fuel and oxidizer systems. The engine is used in the Atlas V. It is also a fully automatic system. Sounding like it was a fuel or oxidizer leak. Spaceship 2 is a brand new design. And it uses people at the controls. This one sounding like it was pilot error. |
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http://forums.pelicanparts.com/uploa...1415065040.jpg |
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the thing is, with those giant drag structures behind the main wing, I don't see how an unlock would be anything like Hard Drive's analogy of popping an unlatched hood at speed. ...it maybe would be like popping a trunk open at speed. hmmm... perhaps the control surfaces on the 'feather' booms could over-power whatever motors drive those up and back again. I dunno. But I do expect that people at Scaled knew exactly what went wrong, and knew within hours. |
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The latest says they were trans-sonic ~Mach 1. Earlier I was reading 1.4. |
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On SpaceShipOne, Max Q occurred at 105,000 ft (32,000M)
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The NTSB said they found the co-pilots chute in the wreckage; and seeing (their video) a very small tarp over part of the wreckage... :-/
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I take they have ejection seats with break away hatches? Or did they get out of their seats and have a hatch to jump out?
What about future passengers? Would they be on their own or do they all have an ejection seat/hatch? |
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I haven't checked through this entire thread to see if this has been posted.
Part of a news segment I heard over the weekend said that it had been determined that the copilot had engaged the feathering mechanism prematurely... and of course, doing that as the rocket engine is in full tilt boogie is going to rip those wings off. A woman who knew the copilot and who saw the wreckage was being interviewed by phone on CNN Friday afternoon, and said his 'chute did not deploy... said what she saw was very disturbing... said something like "he was in his seat, but not all of him was there." Check this video I found in a search... especially beginning at around :36 ... photo shows the craft coming apart from a ground camera. A closer, slightly clearer version of that shot appeared on the CBS Evening News. <iframe width="640" height="360" src="//www.youtube.com/embed/dy1k5s7Fbl0?feature=player_detailpage" frameborder="0" allowfullscreen></iframe> Edit: Listening to the guy's voice, near the end of the video, it sounds like he's a conspiracist. I posted the video for the visuals only. :eek: |
Joël Glenn Brenner is the woman who knew the copilot.
She also had a few not very kind words about Virgin Galactic... something like, "They sacrificed my friend for their program." Here are four YouTube videos that I found by searching spaceship two and her name. One or more of them will be part of or the entire interview I heard Friday on CNN. As you can see, the last one is titled "Brenner accuses Virgin of complicity in the death of experimental plane's pilot." https://www.youtube.com/results?search_query=spaceship+two+joel+glenn+bren ner |
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For another thread, but find it interesting about other country and budgets for space programs. Last Sept. ('14) India is the first country to enter Mars orbit in first attempt. It was completed at a record cost of $74 million. |
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For some good old-school edification on forces at Mach ... <iframe width="640" height="480" src="//www.youtube.com/embed/bELu-if5ckU" frameborder="0" allowfullscreen></iframe> Note that none of the oscillations rip the airframes apart. |
My deepest condolences to all who lost their lives, and to the loved ones they left behind. They knew the risks, and were courageous enough to smile and do it anyway. Not many like that. Contrast that with the sheer cowardice and ignorance displayed by the anonymous keyboard expert below.
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I've spent my entire adult life in aerospace, primarily commercial aviation. For profit commercial aviation. All run by folks who would, in your estimation, sacrifice safety for an extra buck. You simply could not be more wrong. You have no basis on which to make those accusations, no experience in the field on which to draw. I can assure you, flight safety, the safety of the crew and occupants, has been the absolute number one priority on every program in which I have been involved for the past 35 years. Mostly commercial, but quite a bit of government and defense as well - I have never seen any difference in safety standards between them. A loss like this resonates throughout the entire team, or more accurately, the entire family involved. From the investors on top to the guys bucking the rivets, one and all are devastated at a very personal level, the money involved be damned. That is a distant second to the sense of family on projects like this, the overwhelming sense of loss. You owe the fine men and women involved in that program an apology. |
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