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Program Critical Hardware


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  1. #1
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    Program Critical Hardware

    I ran across this interesting bit of "Program Critical Hardware". Can you guess what it is?

    Greg
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  2. #2
    troj's Avatar
    troj is offline Wielder Of the Skillet Of Harsh Discipline, Potentate of Perilous Pans TRF_ADMIN.png
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    Quote Originally Posted by GregGleason View Post
    I ran across this interesting bit of "Program Critical Hardware". Can you guess what it is?
    First guess would be something related to Space Ship Two.

    -Kevin

  3. #3
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    Nice try! But this is not related to Space Ship Two.

    Greg

  4. #4
    Casting tooling.
    Jeroen

  5. #5
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    Quote Originally Posted by Jeroen_at_CTI View Post

    Casting tooling.
    Jeroen
    Congratulations!

    I guess it helps to have a professional background for this kind of thing, but a "win is a win"!



    Greg


  6. #6
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    So if I'm understanding this properly, this whole structure is solid rocket propellant?
    John B
    NAR 90381
    My Rocketry Gallery

  7. #7
    Not quite. It's the mold into which they will pour solid rocket propellant. Those vanes will create slots in the motor core to increase the surface area of the burn.
    Nick DeBrita
    Active Duty Navy E6/FC1
    NAR #81410 L3 TRA #12809 L3
    Motor Usage 2012: 96,465 N.sec 18% Q

  8. #8
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    It looks like it might be used to create the core in the star portion of the grain in the space shuttle's SRB's.
    Donald Besaw Jr.
    TRA#9876 L2
    www.flashrocketry.com

  9. #9
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    The caption on the link:
    -----------------------

    To provide additional thrust for the Ares I rocket, NASA engineers have designed a new 12-fin forward casting core. The 12-fin core is created by pouring propellant into an insulated and lined segment containing grain core tooling. The propellant mold is then inserted in to the solid rocket motor (SRM) casing. This creates open space in the center of the solid rocket which allows surface area for the propellant to burn.

  10. #10
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    At first I was gonna say it is the mixer blade for one heck of an EX project.


    This would result in what is referred to as a Finocyl configuration?

  11. #11
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    Until I realized that the outboard stuff was fins not tubes, I though it looked like the aft end of a really really big Kraken.
    NAR 88789 L1 8/14/2009

    No more running. I aim to misbehave.

  12. #12
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    Quote Originally Posted by H_Rocket View Post

    ... This would result in what is referred to as a Finocyl configuration?
    Correct.

    For "light reading" on grain geometry with respect to the solid rockets for the Ariane 4, see this link:

    http://dma.ing.uniroma1.it/users/lsa...rainDesign.pdf

    Greg

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