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Space Forum / Shuttle / April 2007ET repairs
Does anyone know the nature of the ET repairs NASA is thinking about? With the risk of shedding, I don't see filling the holes with more foam is a good option. I would think the proper repair would be to take the foam off and start over. This would obviosly be a big job. Even then, is there a process in place to remove all foam and get back to a clean tank. Danny Deger Depends how deep the holes are. In some places given shallow holes, then moulding the foam to a thinner layer is all that is needed, and assuming a launch in a reasonable time of tanking, there should not be much difference in the ice problem. Of course you can probably get away with more shedding on the side away from the orbiter, so it might not be as bad as it looks. I'd not heard of the engine inspection, what is this about? Brian  SignatureBrian Gaff - briang1@blueyonder.co.uk Note:- In order to reduce spam, any email without 'Brian Gaff' in the display name may be lost. > Does anyone know the nature of the ET repairs NASA is thinking about? > With the risk of shedding, I don't see filling the holes with more foam is [quoted text clipped - 3 lines] > > Danny Deger > Depends how deep the holes are. In some places given shallow holes, then > moulding the foam to a thinner layer is all that is needed, and assuming a [quoted text clipped - 6 lines] > > Brian http://www.nasa.gov/mission_pages/shuttle/main/index.html So, the contamination seems not to be of much importance then, if they have flown engines with it present. I'd have thought it would have been destroyed and vented when the engines were running though, surely? There must be debris that shakes loose in such a high pressure system during the vibration of the launch, and I'd hope the design would take this into account. Brian SignatureBrian Gaff....Note, this account does not accept Bcc: email. graphics are great, but the blind can't hear them Email: briang1@blueyonder.co.uk ______________________________________________________________________________________________________________ >> Depends how deep the holes are. In some places given shallow holes, then >> moulding the foam to a thinner layer is all that is needed, and assuming [quoted text clipped - 8 lines] > > http://www.nasa.gov/mission_pages/shuttle/main/index.html > So, the contamination seems not to be of much importance then, if they have > flown engines with it present. I'd have thought it would have been destroyed [quoted text clipped - 5 lines] > > Brian Yeah those O rings have flown many times before eroding but havent caused a disaster.............. Yeah the foam shedding isnt a problem its occured often before kinda normal......... now please explain those statements to the familys of the 14 who died: ( >> So, the contamination seems not to be of much importance then, if they >> have [quoted text clipped - 17 lines] > now please explain those statements to the familys of the 14 who died: > ( Well said !!! Danny Deger > <hall...@aol.com> wrote in message > [quoted text clipped - 27 lines] > > - Show quoted text - Its NASAs safety culture, if it hasnt destroyed itself dont worry about it:( I kinda wonder if the entire program isnt filled with gotchas, that havent detonated YET. On Apr 10, 10:40 pm, "hall...@aol.com" <hall...@aol.com> wrote: > > <hall...@aol.com> wrote in message > [quoted text clipped - 35 lines] > > - Show quoted text - What I'd like to know is whether the lower echelons have been 'corrupted' too. And, what about the contractors? > On Apr 10, 10:40 pm, "hall...@aol.com" <hall...@aol.com> wrote: snip > What I'd like to know is whether the lower echelons have been > 'corrupted' too. > And, what about the contractors? It was reported in both accident investigations that lower echelons fear speaking up. It is my personal experience that NASA management brutally attacks all decenting opinions. I was fired for writing 30 emails in 2 months (excessive us of governement IT) and stating in some emails I was not homicidal (disruptive material being spread using government IT). If a lower echelon engineer wants to keep their family fed, they need to keep any opinion different than the party line to themselves. Danny Deger > > On Apr 10, 10:40 pm, "hall...@aol.com" <hall...@aol.com> wrote: > [quoted text clipped - 13 lines] > > Danny Deger Perhaps NASA employees should form an union. >> > On Apr 10, 10:40 pm, "hall...@aol.com" <hall...@aol.com> wrote: >> [quoted text clipped - 17 lines] > > Perhaps NASA employees should form an union. There is a union, but it is so weak as to be completely useless. Danny Deger >> > On Apr 10, 10:40 pm, "hall...@aol.com" <hall...@aol.com> wrote: >> [quoted text clipped - 17 lines] > > Perhaps NASA employees should form an union. I forgot to mention if you are in management you can literally throw chairs and coke cans at your employees and rage out of control routining using the "f" word at the top of your voice. I can think of 3 managers the behaved such as this and all three were promoted. I seriously doubt if NASA has EVER displined a manager for treating an employee bad. Being a manager at NASA gives you a lisence to do anything you want to your employees. Then management wonders why engineers are afraid to speak up with safety issues??? > I forgot to mention if you are in management you can literally throw chairs > and coke cans at your employees and rage out of control routining using the [quoted text clipped - 4 lines] > management wonders why engineers are afraid to speak up with safety > issues??? Sounds like the boss I had at Bell Labs in the early 90's... :-( >> I forgot to mention if you are in management you can literally throw >> chairs and coke cans at your employees and rage out of control routining [quoted text clipped - 5 lines] >> with safety issues??? > Sounds like the boss I had at Bell Labs in the early 90's... :-( Did you complain to higher management about this guy? Danny Deger >>Sounds like the boss I had at Bell Labs in the early 90's... :-( > > Did you complain to higher management about this guy? > > Danny Deger Actually yes. I had to go up about 4 layers of management. Oh it took a while, but between me and another guy who worked for him, we eventually got him canned. But that was more of a moral victory than anything else, as I'd been forced out of Bell by him before that. I already had a new job elsewhere, and changed long distance carriers from AT&T to Sprint... ;-) >>>Sounds like the boss I had at Bell Labs in the early 90's... :-( >> [quoted text clipped - 8 lines] > job elsewhere, and changed long distance carriers from AT&T to Sprint... > ;-) Good for Bell. My experience at NASA tells me no mater how many layers you go up, the bully boss will always be protected by management. Even if an entire group complained their boss was a bully nothing would be done. No something would be done. The people complaining would be put on a list and never given a decent job or a promotion. If they went to EAP to help get over the stress of dealing with a bully boss, the EAP counselors would delair the people mentally ill. NASA EAP can't tolerate work induced stress. Danny Deger >>> So, the contamination seems not to be of much importance then, if they >>> have [quoted text clipped - 20 lines] > > Well said !!! Not really. Bob Haller spouts gloom and doom constantly. If NASA listened to him, there wouldn't be a manned space program because we'd never have the balls to accept any risk. Besides, the astronauts know that there are risks and accept them. Better to die trying to achieve something you believe is worthwhile rather than sitting on your a.s and accomplishing nothing. Jeff Signature"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety" - B. Franklin, Bartlett's Familiar Quotations (1919) |
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