voyager - 27/2/2007 12:45 PMHail damage is confirmed. Teams will be assessing whether the damage is severe enough to warrant a rollback to the VAB for reparis. All the damage is limited to the upper sections of the LOX tank.
Reports of hail damage to the ET tank from late yesterday.
Teams will inspect this morning. Potential rollback??
More to come.
DaveS - 27/2/2007 2:12 PM
I guess this will be discussed during the FRR which is to begin today. Chris, can you confirm that it has started?
nathan.moeller - 27/2/2007 2:42 PM
Report on L2 also mentions about 1000 areas of damage, as opposed to the 700 areas on the STS-96 tank. The report goes quite in depth and the images tell the tale. Check it. My money is on rollback.
Chris Bergin - 27/2/2007 8:58 AMQuotenathan.moeller - 27/2/2007 2:42 PM
Report on L2 also mentions about 1000 areas of damage, as opposed to the 700 areas on the STS-96 tank. The report goes quite in depth and the images tell the tale. Check it. My money is on rollback.
They are up to 7000 now!
Article with some L2 stuff including. http://www.nasaspaceflight.com/content/?cid=5034
Gerald Andrew Richli - 27/2/2007 4:24 PMNo decision yet on whether to repair the current ET or to use ET-117. ET-117 is currently set to be shipped from Michoud to KSC on April 4.
So when will the new external tank arrive for STS-117?
Michael22090 - 27/2/2007 3:37 PM
Does anyone know how soon they will start rolling her back? Could it even be today?
Chris Bergin - 27/2/2007 9:31 AM
More notes - trying to summarize the NASA memos flying into L2.
Atlantis suffered 20 hits on her left wing. Evalautions proceeding.
Chris Bergin - 27/2/2007 9:38 AMQuoteMichael22090 - 27/2/2007 3:37 PM
Does anyone know how soon they will start rolling her back? Could it even be today?
Won't be today. It takes a while to disconnect all the connections etc.
Jim - 27/2/2007 9:40 AM
Remove the payload or roll back with it in the orbiter?
Jim - 27/2/2007 9:40 AM
Remove the payload or roll back with it in the orbiter?
Michael22090 - 27/2/2007 9:47 AMQuoteJim - 27/2/2007 9:40 AM
Remove the payload or roll back with it in the orbiter?
Wouldn't it be smarter to remove the payload incase they have to demate, or can it still be kept in the Orbiter? I am just wondering.
Chris Bergin - 27/2/2007 11:17 AM
Here's the dates update:
Minor ET repairs in VAB - Possibly make the end of the March 25th window
Major ET repairs in VAB - Might be able to make the April 23rd - May 24th window
R&R ET with the 118 tank - STS-117 will launch in July and STS-118 will move to August 26th
C5C6 - 27/2/2007 11:24 AM
how come hail protection was never considered when building the service structure?
TFGQ - 27/2/2007 5:12 PM
anyone got shots of the left wing
TFGQ - 27/2/2007 11:12 AM
anyone got shots of the left wing
rdale - 27/2/2007 10:41 AMQuoteC5C6 - 27/2/2007 11:24 AM
how come hail protection was never considered when building the service structure?
This size of hail is _VERY_ rare in Florida...
Chris Bergin - 27/2/2007 11:40 AM
NASA call a media briefing for this evening. NET 4pm Eastern.
Chris Bergin - 27/2/2007 11:50 AM
Not forgetting the issue of "at least" one IFR (Ice Frost Ramp) being damaged. That's pretty important.
Michael22090 - 27/2/2007 11:57 AM
At least the storm did not come at a time when the RSS was rolled back. The damage to Atlantis could have been terrible.
shuttlefan - 27/2/2007 12:56 PM
Can they fix the wing dings while the vehicle is vertical, or do they have to demate it and roll back over to the OPF for that?
ApolloLee - 27/2/2007 8:09 PMThe name of the two transporters are "Crawler Transporters". Max speed with load: 1 mph. Max speed unloaded: 2 mph.
Curiosity question from the mobile transporter heading back to Pad A........
Does it kick in a little more "speed" without the shuttle and MLP atop it. I'm not thinking NASCAR speeds here, but I fiure they can drive at least 5....
Cue the Sammy Hagar remake, "I can't drive 5"
the 101 camera is at 39-B
Speedracer - 27/2/2007 1:14 PMQuotethe 101 camera is at 39-B
According to NASA webcam page it's on the VAB
http://science.ksc.nasa.gov/shuttle/countdown/video/
jmjawors - 27/2/2007 8:19 PMYep, in readiness of rolling MLP-1 off 39B.
Either way, that crawler has been there for quite some time... at least a week.
Chris Bergin - 27/2/2007 1:56 PM
Rollback on Sunday is the current plan.
02.27.07 - 3:10 p.m. EST
NASA officials have confirmed that Space Shuttle Atlantis will roll back to the Vehicle Assembly Building for further assessment after yesterday's hail storm event. Additional details will be available at the press briefing being held today at 4 p.m. EST.
Zoomer30 - 27/2/2007 2:24 PM
The weather pattern right now is very stormy, I live in Iowa and got nailed by the big one this past weekend, round 2 is due in Wed and will probaly last till Friday, figure when that one gets to the East Coast Florida will see more hail. Large hail is not common in Florida simply becasue the air is usuually far to warm at the low levels to support the formation of the stones. Large hailstones can make many trips up and down the storm before finally they are to heavy and fall to the ground. Storms THIS time of air have plenty of cold air even in FL, so large hail can happen.
I wonder why the RSS was not around the ship, it has the "garage door" protection for the back part of the wings.
nathan.moeller - 27/2/2007 3:25 PMYup; the damage would very likely have been worse without it and the weather protection panels.QuoteZoomer30 - 27/2/2007 2:24 PM
I wonder why the RSS was not around the ship, it has the "garage door" protection for the back part of the wings.
RSS was around the ship. I'm not sure how the wing got hit.
Zoomer30 - 27/2/2007 3:24 PM
figure when that one gets to the East Coast Florida will see more hail. Large hail is not common in Florida simply becasue the air is usuually far to warm at the low levels to support the formation of the stones. Large hailstones can make many trips up and down the storm
Chris Bergin - 27/2/2007 2:29 PM
Wing damage is "pretty bad" - source. Which is ambigous, but working on getting images.
rdale - 27/2/2007 3:31 PMRob,
Could have been worse - radar is indicating 2.5" hail as the cell passed south of the landing strip towards VAB! Here's a 3D view of the storm http://skywatch.org/kmlb-vol.png and output showing potential hail size (1.86" indicated in the diamond) http://skywatch.org/kmlb-mesh.png
Chris Bergin - 27/2/2007 9:29 PM
Wing damage is "pretty bad" - source. Which is ambigous, but working on getting images.
nathan.moeller - 27/2/2007 2:31 PMQuoteChris Bergin - 27/2/2007 2:29 PM
Wing damage is "pretty bad" - source. Which is ambigous, but working on getting images.
I'm definitely curious to see the damage. Has anyone said whether the damage is all on TPS or is the top part of the wing busted up as well?
HKS - 27/2/2007 2:35 PMQuoteChris Bergin - 27/2/2007 9:29 PM
Wing damage is "pretty bad" - source. Which is ambigous, but working on getting images.
If the damage is bad, and Atlantis is in for some R&R an a longer stay in the OPF, can it be an option for NASA to swap orbiters? Fly S3/S4 with Endeavour in June?
Andy L - 27/2/2007 2:37 PM
Someone who doesn't read the news articles on here :angry:
http://www.nasaspaceflight.com/content/?cid=5035
"'There were around 27 Orbiter tile damages located on the port side chine and wing tip area,' added the 1pm NASA memo. 'Many of the damages were depressed coating with no visible base substrate showing. The worst case (depth wise) .5'' x.5'' x.12 in depth. RCCs have no visible damage, but will be inspected in the VAB."
gordo - 27/2/2007 2:43 PM
TV news stations just broke the news....... 6 hours after Chris and the team.
Well done all
psloss - 27/2/2007 3:35 PM
What was the general direction of movement of the cell?
landofgrey - 27/2/2007 2:47 PM
A minor note about the crawler on the crawlerway, I (think) it was already on the roadbed prior to yesterday's storm. I may be wrong, but that's what I remember anyway.
Michael22090 - 27/2/2007 8:52 PM
STS-117 Status Briefing is about to be live on NASA TV, just to remind everyone.
nathan.moeller - 27/2/2007 2:42 PM
I read that already. I asked because I don't understand all the NASA-speak. What is chine? What is substrate? I don't know where either are located. Wing tip can mean upper or lower side. I wouldn't have asked if knew those answers.
nathan.moeller - 27/2/2007 2:39 PMQuoteHKS - 27/2/2007 2:35 PMQuoteChris Bergin - 27/2/2007 9:29 PM
Wing damage is "pretty bad" - source. Which is ambigous, but working on getting images.
If the damage is bad, and Atlantis is in for some R&R an a longer stay in the OPF, can it be an option for NASA to swap orbiters? Fly S3/S4 with Endeavour in June?
That's actually a really interesting point. But I don't think Endeavour will be ready to fly before the end of June. But if Atlantis is in OPF-1 passed the planned time, I would guess calling up Endeavour would be a possibility.
Gerald Andrew Richli - 27/2/2007 3:59 PM
New space shuttle launch schedule is: STS-117 is NET June 15, 2007; and STS-118 is NET August 26, 2007. What say ya?
Gerald Andrew Richli - 27/2/2007 3:59 PM
New space shuttle launch schedule is: STS-117 is NET June 15, 2007; and STS-118 is NET August 26, 2007. What say ya?
jmjawors - 27/2/2007 10:01 PM
You're betting that they will not be able to repair the ET in the VAB, then?
nathan.moeller - 27/2/2007 4:02 PMI don't believe they've determined an exact time yet, Nathan. In fact they are still looking at the weekend or early nest week time frame....QuoteGerald Andrew Richli - 27/2/2007 3:59 PM
New space shuttle launch schedule is: STS-117 is NET June 15, 2007; and STS-118 is NET August 26, 2007. What say ya?
Aye! What time are they looking at rolling the stack off the pad on Sunday?
Chris Bergin - 27/2/2007 4:08 PM
Lockheed didn't seem too hopeful, although right now that'd be the plan. Some of the things mentioned the presser were a bit off...such as the plan of five flights still being planned for 2007 - when the other week the fifth flight had already moved - documented - into Jan, as predicted a few months ago. Found that strange.
For everyone's sake, let's hope that they can repair in the VAB and not have to swap tanks.
svenge - 27/2/2007 10:56 PM
How many flights will be pushed back due to this?
Flightstar - 27/2/2007 4:40 PM
Not really Lee as the hail was coming in at an angle.
C5C6 - 27/2/2007 11:49 PM
chris you mentioned more than 7000 impacts on the ET, are all this dents a problem? I'm afraid I haven't got it clear, what impact would this issue have during ascent: is it a problem of aerodynamic loads caused by deformation of the tank?
C5C6 - 27/2/2007 5:49 PM
chris you mentioned more than 7000 impacts on the ET, are all this dents a problem? I'm afraid I haven't got it clear, what impact would this issue have during ascent: is it a problem of aerodynamic loads caused by deformation of the tank?
C5C6 - 27/2/2007 5:49 PM
chris you mentioned more than 7000 impacts on the ET, are all this dents a problem? I'm afraid I haven't got it clear, what impact would this issue have during ascent: is it a problem of aerodynamic loads caused by deformation of the tank?
texas_space - 27/2/2007 4:14 PM
Delays stink :(
Speedracer - 27/2/2007 6:43 PM
How "protected" is the nose of the ET?
Lee Jay - 27/2/2007 7:06 PM
I'm curious. When significant work has to be done to tank foam, to people and equipment travel from Louisiana to Florida to do the work, or is the Florida-based workforce trained and equiped to handle such a situation?
jmjawors - 28/2/2007 1:07 AM
EDIT :: Oh. And Chris... so rollback is midnight Saturday? As in tomorrow night (EST)?
jmjawors - 28/2/2007 1:17 AM
No... I've lost my mind. Yes. Tomorrow is Wednesday.
(Time to make up for some lost sleep!)
I guess what I was thinking of was "moved back a day," which my tired mind substituted with the word "tomorrow." :bleh:
Speedracer - 27/2/2007 7:30 PM
Soooo I guess we should all hail Hale's hail handling? :laugh:
jmjawors - 28/2/2007 1:38 AMQuoteSpeedracer - 27/2/2007 7:30 PM
Soooo I guess we should all hail Hale's hail handling? :laugh:
Nice. :cool:
As has been said, delays suck. But at least they're going to do the right thing to ensure a safe flight. No "go-fever" with these guys!
Almurray1958 - 27/2/2007 3:32 PM
Basically a chine is a change in angle between hull sections (boat building). In the case of the orbiter, a chine is the change of angle in the wing sections (steep to shallow). Substrate is "the stuff beneath" the outer surface coating (coating is built-up over the substrate).
So the translation would be : "The hail seems to have damaged the outer surface but not penetrated to the inner core material near the location where the angle of the wing changes."
The results of the detailed inspection may render this discussion mute.
Hope this helps.<<<
Look at any pics of the Lockheed Blackbirds (SR-71, YF-12A); they have perfect examples of chines...
Chris Bergin - 27/2/2007 3:09 PM
Appreciate it.
The way we run this media site is to have the open/free area better than anyone else, with L2 even better than that ;)
Shuttle Man - 27/2/2007 11:35 AMQuoterdale - 27/2/2007 10:41 AMQuoteC5C6 - 27/2/2007 11:24 AM
how come hail protection was never considered when building the service structure?
This size of hail is _VERY_ rare in Florida...
Absolutely. This was not expected.
rdale - 27/2/2007 11:43 PM
What sort of lesson? Even under the cover of RSS, this was an extreme enough storm that the shuttle itself took some dings. So you'd have to seal it off basically to prevent any damage from a major storm, but by sealing it off you can't access it. Not sure there is a workaround...
texas_space - 27/2/2007 7:14 PM
Delays stink :(
Have incidents like these delayed flights with other, more conventional rockets (e.g. Saturns, Deltas, Atlases)? Would we have to worry as much if this had been an Orion or Ares-V stack on the pad?
edkyle99 - 28/2/2007 12:56 AMThe plan is to be on the pad less than a week. The "other" plan is only the shuttle has to worry about this, not ELV's
Well, the first lesson might be that an RSS-type partial enclosure, combined with several weeks of pad exposure, isn't good enough. Perhaps a complete enclosure is needed, at least for the upper stage and Orion spacecraft, in concert with a processing plan that keeps the vehicle off of the pad until just before launch to minimize its exposure to the elements.
- Ed Kyle
Concorde - 28/2/2007 3:52 AM
Jumping the gun a little but if we're talking late April/early May would this be a day or night launch ?
ysl007 - 28/2/2007 6:15 AMNo. Before STS-96 in May 1999, the tank got damaged by a hailstorm. Not quite as bad as this one though. They also rolled back to the VAB on STS-96 to fix the damage but the launch was only delayed a week because they didn't have other traffic at the ISS to work around. Also in summer 1995, Discovery's tank got damaged by woodpeckers, yes you read correctly, WOODPECKERS! They also rolled back to the VAB to fix that damage. Before the launch of STS-4, way back in 1982, they got hit by a hailstorm the day before launch and had to replace several tiles on the pad.
I'm living in Singapore so not really sure about the weather in florida though is this a first time a Space Shuttle has got damaged by a Hailstorm or some very bad weather alike ?
jacqmans - 28/2/2007 4:23 PMThat's the crawler that had been waiting to pick-up MLP-1 at 39B to haul it to VAB HB1. But now that Atlantis is going back to VAB HB1 that will have to be rescheduled.
DaveS - 28/2/2007 4:30 PMQuotejacqmans - 28/2/2007 4:23 PMThat's the crawler that had been waiting to pick-up MLP-1 at 39B to haul it to VAB HB1. But now that Atlantis is going back to VAB HB1 that will have to be rescheduled.
C5C6 - 28/2/2007 1:47 PM
any video of the hailstorm?
jacqmans - 28/2/2007 4:33 PMYep.QuoteDaveS - 28/2/2007 4:30 PM
That's the crawler that had been waiting to pick-up MLP-1 at 39B to haul it to VAB HB1. But now that Atlantis is going back to VAB HB1 that will have to be rescheduled.
Is this crawler going to pick up Atlantis ?
ShuttleDiscovery - 28/2/2007 5:25 PMStill to early to be determined. Everything should get much clearer once Atlantis is back in the VAB and a detailed assesment of the damages have been done.
Will any future flights be delayed becuse of this rollback? :)
gordo - 28/2/2007 6:10 PMhttp://webcams.ksc.nasa.gov/ImgCap/default.htm
whats the URL of the page with the video images? (The ones with the date stamp)
gbiguy - 28/2/2007 6:06 PMPlease feel free to actually read the entire thread. It will answer all your questions.
Hi,
I'm new to this site. My name is James. I work as a photographer, and was in Florida a few weeks ago for Atlantis' rollout. I noticed on a few of my photos what appears to be "dings" on the lower part of the ET. I have been wondering if Nasa was planning on repairing these spots at the pad, or were they going to fly with the ET in that condition. You can see what I'm talking about from the photos I shot on my site: http://www.freewebs.com/robmed/atlantisrollout1.htm ( You'll have to skip the ad when you get there, I've used a lot of bandwidth this month ). Is it common to launch with the ET in this condition? I wouldn't think so.
James
gbiguy - 28/2/2007 11:06 AM
Hi,
I'm new to this site. My name is James. I work as a photographer, and was in Florida a few weeks ago for Atlantis' rollout. I noticed on a few of my photos what appears to be "dings" on the lower part of the ET. I have been wondering if Nasa was planning on repairing these spots at the pad, or were they going to fly with the ET in that condition. You can see what I'm talking about from the photos I shot on my site: http://www.freewebs.com/robmed/atlantisrollout1.htm ( You'll have to skip the ad when you get there, I've used a lot of bandwidth this month ). Is it common to launch with the ET in this condition? I wouldn't think so.
James
STS Tony - 28/2/2007 6:41 PMYou mean Crawlers. The MLPs(Mobile Launcher Platforms) are just the mobile platforms on which the "stack" is mounted on.
So just to round up. Which MLP is on the way to pick up Atlantis and is there another MLP outside 39B?
gbiguy - 28/2/2007 12:32 PM
Dave,
I know how to read. The area in question is on the right front of the tank, just in front of the wing. TJL was speaking of the area on the botton rear of the tank. Two different things.
James
gbiguy - 28/2/2007 12:32 PM
Dave,
I know how to read. The area in question is on the right front of the tank, just in front of the wing. TJL was speaking of the area on the botton rear of the tank. Two different things. Yes, the bird was real. There were 3 of us photographing the same bird.
James
C5C6 - 28/2/2007 9:41 PMThe entire ET is covered with Spray On Foam Insulation(SOFI). The main basic SOFI is robotically applied to the ET while anything that has geometric shape is shaped by hand(PAL ramps, bipod ramps etc).
small question: i read '7000 areas of foam damage'. Maybe i never knew, is the tank totally covered with foam? wikipedia says 'The ET thermal protection system consists of sprayed-on foam insulation...'. I thought the only foam were the pieces who fell from those orbiter-ET joints to columbia in STS-107
C5C6 - 28/2/2007 10:08 PMNo steel in the ET. Would be too heavy. The SLWT is made of a Aluminium-Lithium alloy(Al-Li).
so the damage is in this foam and not in the 'steel' structure? (I know nothing about materials)
ysl007 - 28/2/2007 6:14 PM
Just a question though , considering the damage done to the ET by these hails , will this ET be demated from Atlantis and replaced with a new one from MAF or they are gonna repair the damaged spots on it and go on ahead using the current ET ?
NASA officials have decided to remove propellants that were loaded this week on Space Shuttle Atlantis before returning the spacecraft to the Vehicle Assembly Building. This work results in additional time at the pad, and rollback is now expected to occur Sunday or Monday.
alan w - 28/2/2007 12:30 PMQuoteConcorde - 28/2/2007 3:52 AM
Jumping the gun a little but if we're talking late April/early May would this be a day or night launch ?
Yeah does any one know
shuttlefan - 1/3/2007 2:30 PMRollback is now Sunday or Monday as they have decided to offload the OMS/RCS propellants.
Chris, can you confirm that they've decided to rollback with the hypergolic propellants still onboard, therefore rollback would begin around midnight Saturday?
DaveS - 1/3/2007 7:35 AM
Rollback is now Sunday or Monday as they have decided to offload the OMS/RCS propellants.
mkirk - 1/3/2007 2:56 PMHere: http://www.nasa.gov/mission_pages/shuttle/main/index.html
Where did you here that?
DaveS - 1/3/2007 7:58 AMQuotemkirk - 1/3/2007 2:56 PMHere: http://www.nasa.gov/mission_pages/shuttle/main/index.html
Where did you here that?
"02.28.07 - 6:10 p.m. EST
NASA officials have decided to remove propellants that were loaded this week on Space Shuttle Atlantis before returning the spacecraft to the Vehicle Assembly Building. This work results in additional time at the pad, and rollback is now expected to occur Sunday or Monday."
Concorde - 1/3/2007 12:07 PMQuotealan w - 28/2/2007 12:30 PMQuoteConcorde - 28/2/2007 3:52 AM
Jumping the gun a little but if we're talking late April/early May would this be a day or night launch ?
Yeah does any one know
To answer my own question, I have found an article from last year which suggested that if they wanted a daylight launch, then they would have to wait until the April 20 window.
punkboi - 1/3/2007 11:04 AM
Anyone know if the S3/S4 truss will be left in Atlantis' cargo bay...or remain in the RSS or be brought back to the SSPF to have its batteries recharged/replaced?
jmjawors - 1/3/2007 9:09 AMQuotepunkboi - 1/3/2007 11:04 AM Anyone know if the S3/S4 truss will be left in Atlantis' cargo bay...or remain in the RSS or be brought back to the SSPF to have its batteries recharged/replaced?It will be removed from the payload bay and kept at the pad.
Cool. Thanks
EDIT: Sorry... Someone can delete my previous post :bleh:
mkirk - 1/3/2007 8:02 AMQuoteDaveS - 1/3/2007 7:58 AMQuotemkirk - 1/3/2007 2:56 PMHere: http://www.nasa.gov/mission_pages/shuttle/main/index.html
Where did you here that?
"02.28.07 - 6:10 p.m. EST
NASA officials have decided to remove propellants that were loaded this week on Space Shuttle Atlantis before returning the spacecraft to the Vehicle Assembly Building. This work results in additional time at the pad, and rollback is now expected to occur Sunday or Monday."
Thanks, as you can see I have pretty much tunned out the public information stuff because it is usually not timely.
I can see needing the extra time, but I am still not convinced this is a full off-load. Like I said earlier I believe they are just adjusting the quantity - that is what I was briefed yesterday afternoon. I will check on this.
Mark Kirkman
shuttlefan - 1/3/2007 11:51 AMQuotemkirk - 1/3/2007 8:02 AMQuoteDaveS - 1/3/2007 7:58 AMQuotemkirk - 1/3/2007 2:56 PMHere: http://www.nasa.gov/mission_pages/shuttle/main/index.html
Where did you here that?
"02.28.07 - 6:10 p.m. EST
NASA officials have decided to remove propellants that were loaded this week on Space Shuttle Atlantis before returning the spacecraft to the Vehicle Assembly Building. This work results in additional time at the pad, and rollback is now expected to occur Sunday or Monday."
Thanks, as you can see I have pretty much tunned out the public information stuff because it is usually not timely.
I can see needing the extra time, but I am still not convinced this is a full off-load. Like I said earlier I believe they are just adjusting the quantity - that is what I was briefed yesterday afternoon. I will check on this.
Mark Kirkman
I've understood all along here that they decided to fully-load the propellants and then that would be one less thing to do once they get back on the pad...
Sorry, I now have read that they will indeed remove the propellants and rollback has been reset for 7am Sunday. I stand corrected!! :cool:
mkirk - 1/3/2007 2:18 PM
I was really amused/surprised that Dave S found out the correct info this morning from the Main NASA Shuttle News Page - that is the last place anyone would look for timely and acurate shuttle news.
anik - 1/3/2007 12:13 PM
These events can not be postponed, therefore it means that STS-117 launch is possible from the beginning of May only...
Zoomer30 - 1/3/2007 11:55 AM
Makes me wish they had kept the "Mobile Service Structure" system they had in Apollo. Just enclose the whole stack, this is an expensive issue they have now.
alan w - 1/3/2007 5:38 PM
is this really true, can anyone comment on this statement? thanks
alan w - 1/3/2007 11:38 PMQuoteanik - 1/3/2007 12:13 PM
These events can not be postponed, therefore it means that STS-117 launch is possible from the beginning of May only...
is this really true, can anyone comment on this statement? thanks
mkirk - 1/3/2007 5:16 PMThe OPF? Are you (the collective "you") still worried that the orbiter will have to be demated and returned to the OPF? Or am I just missing something obvious...
The hypergolic deservicing is NOT a complete off load of ALL of the hypergolic propellant. They are just taking off a significant portion of the OMS propellant (i.e. OMS Quantity Adjustment). This is a lot more propellant than I thought at first and it is due to a Safety Requirement for the OPF and not because of the slight overload that occurred on the OMS fuel earlier this week as I indicated earlier in the thread.
Lee Jay - 1/3/2007 6:45 PM
The OPF? Are you (the collective "you") still worried that the orbiter will have to be demated and returned to the OPF? Or am I just missing something obvious...
Lee Jay
Lee Jay - 1/3/2007 6:45 PMQuotemkirk - 1/3/2007 5:16 PMThe OPF? Are you (the collective "you") still worried that the orbiter will have to be demated and returned to the OPF? Or am I just missing something obvious...
The hypergolic deservicing is NOT a complete off load of ALL of the hypergolic propellant. They are just taking off a significant portion of the OMS propellant (i.e. OMS Quantity Adjustment). This is a lot more propellant than I thought at first and it is due to a Safety Requirement for the OPF and not because of the slight overload that occurred on the OMS fuel earlier this week as I indicated earlier in the thread.
Lee Jay
mkirk - 1/3/2007 5:53 PM
There is no plan for the OPF at this point, this is just a precaution in case the OPF comes into play after further assessments.
Mark Kirkman
shuttlefan - 1/3/2007 8:51 PM
Is it just dumb luck all these years that a tornado hasn't hit the pad and destroyed the Shuttle?
shuttlefan - 1/3/2007 7:51 PM
I read that Brevard County is under a Tornado Watch. Is it just dumb luck all these years that a tornado hasn't hit the pad and destroyed the Shuttle? Also, if a tornado were to hit it, would the SRBs explode because they are already loaded with solid fuel?
MKremer - 1/3/2007 7:12 PMQuoteshuttlefan - 1/3/2007 7:51 PM
I read that Brevard County is under a Tornado Watch. Is it just dumb luck all these years that a tornado hasn't hit the pad and destroyed the Shuttle? Also, if a tornado were to hit it, would the SRBs explode because they are already loaded with solid fuel?
Not "dumb luck", but just the rarity of that type of thunderstorm at the Cape (also note that in the past almost-50 years there hasn't been that type of "violent, quick-storm" that has resulted in major damages to either NASA or Pentagon LVs, or the support/fueling structures around them.)
Even if an SRB were to hypothetically be somehow ignited from a severe thunderstorm, it would not "explode" at all.
Worst case would be that some of the propellent would start to burn, and there are more than a couple of contigency operations in that case, both for Shuttle and other LVs that use solid boosters.
ApolloLee - 1/3/2007 6:49 PMQuoteZoomer30 - 1/3/2007 11:55 AM
Makes me wish they had kept the "Mobile Service Structure" system they had in Apollo. Just enclose the whole stack, this is an expensive issue they have now.
Brings up the question of how an Ares I or Ares V rocket will be protected.
All the literature I've seen certainly has a launch tower on the MLP but I've seen nothing about a mobile or fixed service structure..... Will Ares just be open to the elements?
here comes the crawler...or it's been waiting for some time and i didn't notice?

C5C6 - 2/3/2007 1:23 PMThe Crawler has been there ever since Wednesday when it was moved from 39B.
here comes the crawler...
MKremer - 1/3/2007 7:12 PM
IWorst case would be that some of the propellent would start to burn, and there are more than a couple of contigency operations in that case, both for Shuttle and other LVs that use solid boosters.
SimonFD - 2/3/2007 7:06 AMQuoteMKremer - 1/3/2007 7:12 PM
IWorst case would be that some of the propellent would start to burn, and there are more than a couple of contigency operations in that case, both for Shuttle and other LVs that use solid boosters.
What contingency ops are there in case of accidental SRB ignition? I though once they were going that was that for two minutes or so!
You'll have to excuse me i'm new here :)
SimonFD - 2/3/2007 1:06 PM
What contingency ops are there in case of accidental SRB ignition? I though once they were going that was that for two minutes or so!
You'll have to excuse me i'm new here :)
nathan.moeller - 2/3/2007 7:30 AMQuoteSimonFD - 2/3/2007 7:06 AM
What contingency ops are there in case of accidental SRB ignition? I though once they were going that was that for two minutes or so!
You'll have to excuse me i'm new here :)
Welcome to the site Simon. Probably better for the Shuttle Q&A section in the general discussion forum. ;) But SRBs have self-destruct charges that can be detonated by the RSO (Range Safety Officer). The only time that has happened was STS-51L (Challenger Accident). The boosters were destroyed about 37 seconds after the disintegration of Challenger and the ET.
kevin-rf - 2/3/2007 9:07 AMQuotenathan.moeller - 2/3/2007 7:30 AMQuoteSimonFD - 2/3/2007 7:06 AM
What contingency ops are there in case of accidental SRB ignition? I though once they were going that was that for two minutes or so!
You'll have to excuse me i'm new here :)
Welcome to the site Simon. Probably better for the Shuttle Q&A section in the general discussion forum. ;) But SRBs have self-destruct charges that can be detonated by the RSO (Range Safety Officer). The only time that has happened was STS-51L (Challenger Accident). The boosters were destroyed about 37 seconds after the disintegration of Challenger and the ET.
There is always an RSO sitting with his finger on the switch? I think if an SRB was ignited outside of a normal countdown (thunder boomer moves through and strikes the booster instead of the lightening supression system) there would be no one to throw the switch. I sure one of NASA's biggest fears is a SRB lighting inside the VAB. It would be a curtain call for the Shuttle,Ares I, and Ares V. One only has to look at what happened on the pad in brazil a few years back to get an idea of how bad it would be.
kevin-rf - 2/3/2007 10:07 AM
I sure one of NASA's biggest fears is a SRB lighting inside the VAB.
MKremer - 1/3/2007 9:12 PMQuoteshuttlefan - 1/3/2007 7:51 PM
I read that Brevard County is under a Tornado Watch.
Not "dumb luck", but just the rarity of that type of thunderstorm at the Cape (also note that in the past almost-50 years there hasn't been that type of "violent, quick-storm" that has resulted in major damages to either NASA or Pentagon LVs, or the support/fueling structures around them.)
voyager - 2/3/2007 5:06 PM
Not to change the subject of SRB's but ran across some historical images of the last rollback of STS-96.
This will give you an idea as to how intensive the repairs can be and why these repairs are not performed at the pad.
anik - 1/3/2007 12:13 PM
According to current plan, there will be Soyuz TMA-10 relocation from Zvezda module to Zarya module on April 27 and possible ISS orbit's raisings by Zvezda's engines for preparation to STS-117 and Progress M-60...
These events can not be postponed, therefore it means that STS-117 launch is possible from the beginning of May only...
A planned altitude reboost for the space station on Friday was cancelled and rescheduled for later this month. With the launch of the STS-117 shuttle mission delayed until no earlier than late April, Russian flight controllers now plan on two separate reboosts for the station.
The first reboost, now planned for around March 16, will position the station for the launch of the Expedition 15 crew and U.S. businessman Charles Simonyi on the Soyuz TMA-10 craft from the Baikonur Cosmodrome on April 7.
A second reboost on March 28 improves rendezvous opportunities for Atlantis’ flight and brings the station into the correct trajectory for the returning Soyuz craft to land in Kazakhstan on April 19 with Expedition 14 Commander Mike Lopez-Alegria, Flight Engineer Mikhail Tyurin and Simonyi.
jmjawors - 3/3/2007 1:24 AMThey probably have nothing new to report at this time on this. They're probably still talking about it. I don't see any reason why it couldn't be postponed.
Two issues here, the reboost and the relocation. But so far NASA does not seem to be addressing the "Soyuz relocation" aspect of all this. At least not on the website.
Michael22090 - 2/3/2007 8:03 PM
I notice that the NASA TV schedule does not list the rollback. Does anyone know if it will be shown? I would like to see at least part of it...
DaveS - 3/3/2007 3:50 AM
I don't see any reason why it couldn't be postponed.
I think that the Russians have gotten a little bit too comfortable with slack in the ISS schedule during the downtime between STS-107/STS-114 and STS-114/STS-121.
Now the shuttle is back and it's time to get used to the fact that assembly has restarted and there's no more slack in the schedule
anik - 3/3/2007 1:24 AM
I will answer to the first sentence only and ignore other two...
There will be two spacecrafts on ISS after Soyuz TMA-9 landing: Progress M-59 - on Pirs module and Soyuz TMA-10 - on Zvezda module... Progress M-59 is unprofitable for performing maneuvers of changing ISS orbit... The using of Soyuz TMA-10 engines for such purposes is dangerously...
"If" Space Shuttle will enter very low orbit then, according to agreement between Russian and U.S. specialists, ISS must lower orbit by approximately 100 kilometres... In this situation we can perform such maneuver with using Zvezda's engines only... Therefore Soyuz TMA-10 must be relocated from Zvezda module to Zarya module prior to STS-117 launch...
I am not a specialist, but this information was gotten from my sources... If it is not true, then I am sorry...