space shuttle

[MontereyVol]

Oh Yeah? I know more about Von Braun than all you fools, I work in his building............ZING lol

I guess you do? I didn't know he had a bldg named after him?

 

[TennTradition]

I guess you do? I didn't know he had a bldg named after him?

Probably at Redstone Arsenal...don't know....

 

[TennTradition]

TV program pffffft. I read a book!

The whole thing? I think I may have napped a bit during my TV show

 

[utvolpj]

if i was an astronaught,

you are one and now I am too

 

[hohenfelsvol]

how large are the error bars (or error bears, if you will) on that?

I'd say about 10%. So 1.8 bears. A mother and her two cubs would work.

 

[MontereyVol]

Probably at Redstone Arsenal...don't know....

I saw he was from Bama so I guess it could be true?

The whole thing? I think I may have napped a bit during my TV show

Yep, the whole thing! I also went to space camp in 5th grade

 

[BearCat204]

I guess you do? I didn't know he had a bldg named after him?

LOL yeah there is about 5 of them named after him over here.

 

[BearCat204]

Probably at Redstone Arsenal...don't know....

Correct

 

[TennTradition]

I saw he was from Bama so I guess it could be true?



Yep, the whole thing! I also went to space camp in 5th grade

Now I'm jealous...seriously.

 

[BearCat204]

Space Camp was fun back in the day

 

[Chemvol]

that's what i mean, they never had this problem until after the endeavor. Now, after every launch, there is some report about nasa being worried about foam damaging the space shuttle.

I've read where they went to some enviro-friendly foam or chemicals that make the foam and it doesn't hold up well.

It was Columbia that had a crack in its heat shield and disintegrated upon reentry.

I think that this problem existed before then to some extent. There was a change in the material used for insulation at one point, I believe, as you note joevol. IIRC, the problem started after that change...but the change was apparently necessary (it could have been for environmental reasons, but I'm not sure). That may be BS, but I seem to recall reading that.

The reason that they are noted every time now is because we go through extensive checks of the heat shield while in space, something that we didn't do before. The problems are usually not a big deal and are repaired when the shuttle returns. Obviously, they can sometimes be a bigger deal, as it was with Columbia...so that is the reason for the extensive checks now.

Under the Montreal Protocol, the CFCs of the type used for the blowing agent for the old foam were to be phased out in the mid-90s. The current formulation for the foam uses a hydrochlorofluorocarbon-based blowing agent that is more environmentally-friendly.

http://www.nasa.gov/centers/marshall/pdf/114022main_TPS_FS.pdf

 

[Daddy Gee]

NASA suspending future shuttle missions... just now on the news..

 

[MWR]

you are one and now I am too

But it's all for naught.

 

[TennTradition]

Under the Montreal Protocol, the CFCs of the type used for the blowing agent for the old foam were to be phased out in the mid-90s. The current formulation for the foam uses a hydrochlorofluorocarbon-based blowing agent that is more environmentally-friendly.

http://www.nasa.gov/centers/marshall/pdf/114022main_TPS_FS.pdf

:hi: