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Shuttle Foam

  1. Aug 10, 2005 #1
    Anyone have details on the Foam, ie its composition..some data on its manufacturer..anything on how it is applied to the Shuttle External Tank would be great. I have an idea on the foam braking away during lift off, but this is purely based on factors I have been trying to tackle with, that are not stress related, so until I know everything about the Foam and how it is applied to the tank, it wont make any sense.

    Any tech links would be greatly recieved, thanks.
     
  2. jcsd
  3. Aug 10, 2005 #2

    Astronuc

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    - from http://anon.nasa-global.speedera.net/anon.nasa-global/CAIB/CAIB_lowres_chapter3.pdf

    I believe this is from the CAIB report, but I haven't confirmed it.

    See also - http://en.wikipedia.org/wiki/External_Tank

    and - Modification of Space Shuttle Tiles? - post 11
     
    Last edited: Aug 10, 2005
  4. Aug 10, 2005 #3
  5. Aug 10, 2005 #4

    FredGarvin

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    He's good like that ;-)
     
  6. Aug 11, 2005 #5

    Astronuc

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    So are you Fred :wink:

    There is also some useful photos showing how the complexity of the Space Shuttle External Tank at - http://www.nasa.gov/centers/marshal...lery/photos/photogallery/shuttle/shuttle.html

    The major problem for the foam is the PAL area and Bipod region. The Bipod area creates significant turbulence - vortex shedding off the cylindrical structures.

    It appears that the area on ET-121 (on STS-114, Discovery), which lost the foam, was a patch and blend repair. There is definitely a need for improvement in this area.

    In reality, the foam loss is only significant on the shuttle side of the tank or roughly 1/3 of the circumferential surface. A kevlar mesh with about 5-8 cm pitch and located just below the surface of the foam would seem reasonable to ensure a reduction in foam loss - but perhaps easier said than done.
     
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